Uses of Class
java.lang.Object

Packages that use Object

java.applet	Provides the classes necessary to create an applet and the classes an applet uses to communicate with its applet context.
java.awt	Contains all of the classes for creating user interfaces and for painting graphics and images.
java.awt.color	Provides classes for color spaces.
java.awt.datatransfer	Provides interfaces and classes for transferring data between and within applications.
java.awt.dnd	Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI.
java.awt.event	Provides interfaces and classes for dealing with different types of events fired by AWT components.
java.awt.font	Provides classes and interface relating to fonts.
java.awt.geom	Provides the Java 2D classes for defining and performing operations on objects related to two-dimensional geometry.
java.awt.im	Provides classes and interfaces for the input method framework.
java.awt.im.spi	Provides interfaces that enable the development of input methods that can be used with any Java runtime environment.
java.awt.image	Provides classes for creating and modifying images.
java.awt.image.renderable	Provides classes and interfaces for producing rendering-independent images.
java.awt.print	Provides classes and interfaces for a general printing API.
java.beans	Contains classes related to developing beans -- components based on the JavaBeansTM architecture.
java.beans.beancontext	Provides classes and interfaces relating to bean context.
java.io	Provides for system input and output through data streams, serialization and the file system.
java.lang	Provides classes that are fundamental to the design of the Java programming language.
java.lang.ref	Provides reference-object classes, which support a limited degree of interaction with the garbage collector.
java.lang.reflect	Provides classes and interfaces for obtaining reflective information about classes and objects.
java.math	Provides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arithmetic (BigDecimal).
java.net	Provides the classes for implementing networking applications.
java.nio	Defines buffers, which are containers for data, and provides an overview of the other NIO packages.
java.nio.channels	Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
java.nio.channels.spi	Service-provider classes for the java.nio.channels package.
java.nio.charset	Defines charsets, decoders, and encoders, for translating between bytes and Unicode characters.
java.nio.charset.spi	Service-provider classes for the java.nio.charset package.
java.rmi	Provides the RMI package.
java.rmi.activation	Provides support for RMI Object Activation.
java.rmi.dgc	Provides classes and interface for RMI distributed garbage-collection (DGC).
java.rmi.registry	Provides a class and two interfaces for the RMI registry.
java.rmi.server	Provides classes and interfaces for supporting the server side of RMI.
java.security	Provides the classes and interfaces for the security framework.
java.security.acl	The classes and interfaces in this package have been superseded by classes in the java.security package.
java.security.cert	Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
java.security.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
java.sql	Provides the API for accessing and processing data stored in a data source (usually a relational database) using the JavaTM programming language.
java.text	Provides classes and interfaces for handling text, dates, numbers, and messages in a manner independent of natural languages.
java.util	Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
java.util.jar	Provides classes for reading and writing the JAR (Java ARchive) file format, which is based on the standard ZIP file format with an optional manifest file.
java.util.logging	Provides the classes and interfaces of the JavaTM 2 platform's core logging facilities.
java.util.prefs	This package allows applications to store and retrieve user and system preference and configuration data.
java.util.regex	Classes for matching character sequences against patterns specified by regular expressions.
java.util.zip	Provides classes for reading and writing the standard ZIP and GZIP file formats.
javax.accessibility	Defines a contract between user-interface components and an assistive technology that provides access to those components.
javax.crypto	Provides the classes and interfaces for cryptographic operations.
javax.crypto.spec	Provides classes and interfaces for key specifications and algorithm parameter specifications.
javax.imageio	The main package of the Java Image I/O API.
javax.imageio.metadata	A package of the Java Image I/O API dealing with reading and writing metadata.
javax.imageio.plugins.jpeg	Classes supporting the built-in JPEG plug-in.
javax.imageio.spi	A package of the Java Image I/O API containing the plug-in interfaces for readers, writers, transcoders, and streams, and a runtime registry.
javax.imageio.stream	A package of the Java Image I/O API dealing with low-level I/O from files and streams.
javax.naming	Provides the classes and interfaces for accessing naming services.
javax.naming.directory	Extends the javax.naming package to provide functionality for accessing directory services.
javax.naming.event	Provides support for event notification when accessing naming and directory services.
javax.naming.ldap	Provides support for LDAPv3 extended operations and controls.
javax.naming.spi	Provides the means for dynamically plugging in support for accessing naming and directory services through the javax.naming and related packages.
javax.net	Provides classes for networking applications.
javax.net.ssl	Provides classes for the secure socket package.
javax.print	Provides the principal classes and interfaces for the JavaTM Print Service API.
javax.print.attribute	Provides classes and interfaces that describe the types of JavaTM Print Service attributes and how they can be collected into attribute sets.
javax.print.attribute.standard	Package javax.print.attribute.standard contains classes for specific printing attributes.
javax.print.event	Package javax.print.event contains event classes and listener interfaces.
javax.rmi	Contains user APIs for RMI-IIOP.
javax.rmi.CORBA	Contains portability APIs for RMI-IIOP.
javax.security.auth	This package provides a framework for authentication and authorization.
javax.security.auth.callback	This package provides the classes necessary for services to interact with applications in order to retrieve information (authentication data including usernames or passwords, for example) or to display information (error and warning messages, for example).
javax.security.auth.kerberos	This package contains utility classes related to the Kerberos network authentication protocol.
javax.security.auth.login	This package provides a pluggable authentication framework.
javax.security.auth.x500	This package contains the classes that should be used to store X500 Principal and X500 Private Crendentials in a Subject.
javax.security.cert	Provides classes for public key certificates.
javax.sound.midi	Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI (Musical Instrument Digital Interface) data.
javax.sound.midi.spi	Supplies interfaces for service providers to implement when offering new MIDI devices, MIDI file readers and writers, or sound bank readers.
javax.sound.sampled	Provides interfaces and classes for capture, processing, and playback of sampled audio data.
javax.sound.sampled.spi	Supplies abstract classes for service providers to subclass when offering new audio devices, sound file readers and writers, or audio format converters.
javax.sql	Provides the API for server side data source access and processing from the JavaTM programming language.
javax.swing	Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
javax.swing.border	Provides classes and interface for drawing specialized borders around a Swing component.
javax.swing.colorchooser	Contains classes and interfaces used by the JColorChooser component.
javax.swing.event	Provides for events fired by Swing components.
javax.swing.filechooser	Contains classes and interfaces used by the JFileChooser component.
javax.swing.plaf	Provides one interface and many abstract classes that Swing uses to provide its pluggable look-and-feel capabilities.
javax.swing.plaf.basic	Provides user interface objects built according to the Basic look and feel.
javax.swing.plaf.metal	Provides user interface objects built according to the Java look and feel (once codenamed Metal), which is the default look and feel.
javax.swing.plaf.multi	Provides user interface objects that combine two or more look and feels.
javax.swing.table	Provides classes and interfaces for dealing with javax.swing.JTable.
javax.swing.text	Provides classes and interfaces that deal with editable and noneditable text components.
javax.swing.text.html	Provides the class HTMLEditorKit and supporting classes for creating HTML text editors.
javax.swing.text.html.parser	Provides the default HTML parser, along with support classes.
javax.swing.text.rtf	Provides a class (RTFEditorKit) for creating Rich-Text-Format text editors.
javax.swing.tree	Provides classes and interfaces for dealing with javax.swing.JTree.
javax.swing.undo	Allows developers to provide support for undo/redo in applications such as text editors.
javax.transaction	Contains three exceptions thrown by the ORB machinery during unmarshalling.
javax.transaction.xa	Provides the API that defines the contract between the transaction manager and the resource manager, which allows the transaction manager to enlist and delist resource objects (supplied by the resource manager driver) in JTA transactions.
javax.xml.parsers	Provides classes allowing the processing of XML documents.
javax.xml.transform	This package defines the generic APIs for processing transformation instructions, and performing a transformation from source to result.
javax.xml.transform.dom	This package implements DOM-specific transformation APIs.
javax.xml.transform.sax	This package implements SAX2-specific transformation APIs.
javax.xml.transform.stream	This package implements stream- and URI- specific transformation APIs.
org.ietf.jgss	This package presents a framework that allows application developers to make use of security services like authentication, data integrity and data confidentiality from a variety of underlying security mechanisms like Kerberos, using a unified API.
org.omg.CORBA	Provides the mapping of the OMG CORBA APIs to the JavaTM programming language, including the class ORB, which is implemented so that a programmer can use it as a fully-functional Object Request Broker (ORB).
org.omg.CORBA_2_3	The CORBA_2_3 package defines additions to existing CORBA interfaces in the Java 2 Standard Edition. These changes occurred in recent revisions to the CORBA API defined by the OMG. The new methods were added to interfaces derived from the corresponding interfaces in the CORBA package. This provides backward compatibility and avoids breaking the JCK tests.
org.omg.CORBA_2_3.portable	Provides methods for the input and output of value types, and contains other updates to the org/omg/CORBA/portable package.
org.omg.CORBA.DynAnyPackage	Provides the exceptions used with the DynAny interface (InvalidValue, Invalid, InvalidSeq, and TypeMismatch).
org.omg.CORBA.ORBPackage	Provides the exception InvalidName, which is thrown by the method ORB.resolve_initial_references and the exception InconsistentTypeCode, which is thrown by the Dynamic Any creation methods in the ORB class.
org.omg.CORBA.portable	Provides a portability layer, that is, a set of ORB APIs that makes it possible for code generated by one vendor to run on another vendor's ORB.
org.omg.CORBA.TypeCodePackage	Provides the user-defined exceptions BadKind and Bounds, which are thrown by methods in in the class TypeCode.
org.omg.CosNaming	Provides a naming service for Java IDL.
org.omg.CosNaming.NamingContextExtPackage	This package contains the following classes, which are used in org.omg.CosNaming.NamingContextExt:
org.omg.CosNaming.NamingContextPackage	This package contains Exception classes for the org.omg.CosNaming package.
org.omg.Dynamic	This package contains the Dynamic module specified in the OMG Portable Interceptor specification, http://cgi.omg.org/cgi-bin/doc?ptc/2000-08-06, section 21.9.
org.omg.DynamicAny	Provides classes and interfaces that enable traversal of the data value associated with an any at runtime, and extraction of the primitive constituents of the data value.
org.omg.DynamicAny.DynAnyFactoryPackage	This package contains classes and exceptions from the DynAnyFactory interface of the DynamicAny module specified in the OMG The Common Object Request Broker: Architecture and Specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07, section 9.2.2.
org.omg.DynamicAny.DynAnyPackage	This package contains classes and exceptions from the DynAny interface of the DynamicAny module specified in the OMG The Common Object Request Broker: Architecture and Specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07, section 9.2.
org.omg.IOP	This package contains the IOP module specified in the OMG document The Common Object Request Broker: Architecture and Specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07, section 13.6.
org.omg.IOP.CodecFactoryPackage	This package contains the exceptions specified in the IOP::CodeFactory interface (as part of the Portable Interceptors spec).
org.omg.IOP.CodecPackage	This package is generated from the IOP::Codec IDL interface definition.
org.omg.Messaging	This package contains the Messaging module specified in the OMG CORBA Messaging specification, http://cgi.omg.org/cgi-bin/doc?formal/99-10-07.
org.omg.PortableInterceptor	Provides a mechanism to register ORB hooks through which ORB services can intercept the normal flow of execution of the ORB.
org.omg.PortableInterceptor.ORBInitInfoPackage	This package contains the exceptions and typedefs from the ORBInitInfo local interface of the PortableInterceptor module specified in the OMG Portable Interceptor specification, http://cgi.omg.org/cgi-bin/doc?ptc/2000-08-06, section 21.7.2.
org.omg.PortableServer	Provides classes and interfaces for making the server side of your applications portable across multivendor ORBs.
org.omg.PortableServer.CurrentPackage	Provides method implementations with access to the identity of the object on which the method was invoked.
org.omg.PortableServer.POAManagerPackage	Encapsulates the processing state of the POAs it is associated with.
org.omg.PortableServer.POAPackage	Allows programmers to construct object implementations that are portable between different ORB products.
org.omg.PortableServer.ServantLocatorPackage	Provides classes and interfaces for locating the servant.
org.omg.stub.java.rmi	Contains RMI-IIOP Stubs for the Remote types that occur in the java.rmi package.
org.w3c.dom	Provides the interfaces for the Document Object Model (DOM) which is a component API of the Java API for XML Processing.
org.xml.sax	Provides the classes and interfaces for the Simple API for XML (SAX) which is a component of the Java API for XML Processing.
org.xml.sax.helpers	Provides helper classes for the Simple API for XML (SAX) which is a component of the Java API for XML Processing.

Uses of Object in java.applet

Subclasses of Object in java.applet

class	Applet An applet is a small program that is intended not to be run on its own, but rather to be embedded inside another application.
protected class	Applet.AccessibleApplet This class implements accessibility support for the Applet class.

Uses of Object in java.awt

Subclasses of Object in java.awt

class	AlphaComposite This AlphaComposite class implements the basic alpha compositing rules for combining source and destination pixels to achieve blending and transparency effects with graphics and images.
(package private) class	java.awt.AttributeValue
class	AWTError Thrown when a serious Abstract Window Toolkit error has occurred.
class	AWTEvent The root event class for all AWT events.
class	AWTEventMulticaster A class which implements efficient and thread-safe multi-cast event dispatching for the AWT events defined in the java.awt.event package.
class	AWTException Signals that an Absract Window Toolkit exception has occurred.
class	AWTKeyStroke An AWTKeyStroke represents a key action on the keyboard, or equivalent input device.
class	AWTPermission This class is for AWT permissions.
class	BasicStroke The BasicStroke class defines a basic set of rendering attributes for the outlines of graphics primitives, which are rendered with a Graphics2D object that has its Stroke attribute set to this BasicStroke.
class	BorderLayout A border layout lays out a container, arranging and resizing its components to fit in five regions: north, south, east, west, and center.
class	BufferCapabilities Capabilities and properties of buffers.
static class	BufferCapabilities.FlipContents A type-safe enumeration of the possible back buffer contents after page-flipping
class	Button This class creates a labeled button.
protected class	Button.AccessibleAWTButton This class implements accessibility support for the Button class.
class	Canvas A Canvas component represents a blank rectangular area of the screen onto which the application can draw or from which the application can trap input events from the user.
protected class	Canvas.AccessibleAWTCanvas This class implements accessibility support for the Canvas class.
class	CardLayout A CardLayout object is a layout manager for a container.
class	Checkbox A check box is a graphical component that can be in either an "on" (true) or "off" (false) state.
protected class	Checkbox.AccessibleAWTCheckbox This class implements accessibility support for the Checkbox class.
class	CheckboxGroup The CheckboxGroup class is used to group together a set of Checkbox buttons.
class	CheckboxMenuItem This class represents a check box that can be included in a menu.
protected class	CheckboxMenuItem.AccessibleAWTCheckboxMenuItem Inner class of CheckboxMenuItem used to provide default support for accessibility.
class	Choice The Choice class presents a pop-up menu of choices.
protected class	Choice.AccessibleAWTChoice This class implements accessibility support for the Choice class.
class	Color The Color class is used encapsulate colors in the default sRGB color space or colors in arbitrary color spaces identified by a ColorSpace.
class	Component A component is an object having a graphical representation that can be displayed on the screen and that can interact with the user.
protected class	Component.AccessibleAWTComponent Inner class of Component used to provide default support for accessibility.
protected class	Component.AccessibleAWTComponent.AccessibleAWTComponentHandler Fire PropertyChange listener, if one is registered, when shown/hidden..
protected class	Component.AccessibleAWTComponent.AccessibleAWTFocusHandler Fire PropertyChange listener, if one is registered, when focus events happen
protected class	Component.BltBufferStrategy Inner class for blitting offscreen surfaces to a component.
protected class	Component.FlipBufferStrategy Inner class for flipping buffers on a component.
class	ComponentOrientation The ComponentOrientation class encapsulates the language-sensitive orientation that is to be used to order the elements of a component or of text.
class	Container A generic Abstract Window Toolkit(AWT) container object is a component that can contain other AWT components.
protected class	Container.AccessibleAWTContainer Inner class of Container used to provide default support for accessibility.
protected class	Container.AccessibleAWTContainer.AccessibleContainerHandler Fire PropertyChange listener, if one is registered, when children are added or removed.
class	ContainerOrderFocusTraversalPolicy A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.
class	Cursor A class to encapsulate the bitmap representation of the mouse cursor.
class	DefaultFocusTraversalPolicy A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.
class	DefaultKeyboardFocusManager The default KeyboardFocusManager for AWT applications.
class	Dialog A Dialog is a top-level window with a title and a border that is typically used to take some form of input from the user.
protected class	Dialog.AccessibleAWTDialog This class implements accessibility support for the Dialog class.
class	Dimension The Dimension class encapsulates the width and height of a component (in integer precision) in a single object.
class	DisplayMode The DisplayMode class encapsulates the bit depth, height, width, and refresh rate of a GraphicsDevice.
class	Event NOTE: The Event class is obsolete and is available only for backwards compatilibility.
class	EventQueue EventQueue is a platform-independent class that queues events, both from the underlying peer classes and from trusted application classes.
class	FileDialog The FileDialog class displays a dialog window from which the user can select a file.
class	FlowLayout A flow layout arranges components in a left-to-right flow, much like lines of text in a paragraph.
class	FocusTraversalPolicy A FocusTraversalPolicy defines the order in which Components with a particular focus cycle root are traversed.
class	Font The Font class represents fonts, which are used to render text in a visible way.
class	FontFormatException Thrown by method createFont in the Font class to indicate that the specified font is bad.
class	FontMetrics The FontMetrics class defines a font metrics object, which encapsulates information about the rendering of a particular font on a particular screen.
class	Frame A Frame is a top-level window with a title and a border.
protected class	Frame.AccessibleAWTFrame This class implements accessibility support for the Frame class.
class	GradientPaint The GradientPaint class provides a way to fill a Shape with a linear color gradient pattern.
class	Graphics The Graphics class is the abstract base class for all graphics contexts that allow an application to draw onto components that are realized on various devices, as well as onto off-screen images.
class	Graphics2D This Graphics2D class extends the Graphics class to provide more sophisticated control over geometry, coordinate transformations, color management, and text layout.
class	GraphicsConfigTemplate The GraphicsConfigTemplate class is used to obtain a valid GraphicsConfiguration.
class	GraphicsConfiguration The GraphicsConfiguration class describes the characteristics of a graphics destination such as a printer or monitor.
class	GraphicsDevice The GraphicsDevice class describes the graphics devices that might be available in a particular graphics environment.
class	GraphicsEnvironment The GraphicsEnvironment class describes the collection of GraphicsDevice objects and Font objects available to a Java(tm) application on a particular platform.
class	GridBagConstraints The GridBagConstraints class specifies constraints for components that are laid out using the GridBagLayout class.
class	GridBagLayout The GridBagLayout class is a flexible layout manager that aligns components vertically and horizontally, without requiring that the components be of the same size.
class	GridLayout The GridLayout class is a layout manager that lays out a container's components in a rectangular grid.
class	HeadlessException Thrown when code that is dependent on a keyboard, display, or mouse is called in an environment that does not support a keyboard, display, or mouse.
class	IllegalComponentStateException Signals that an AWT component is not in an appropriate state for the requested operation.
class	Image The abstract class Image is the superclass of all classes that represent graphical images.
class	ImageCapabilities Capabilities and properties of images.
class	Insets An Insets object is a representation of the borders of a container.
class	JobAttributes A set of attributes which control a print job.
static class	JobAttributes.DefaultSelectionType A type-safe enumeration of possible default selection states.
static class	JobAttributes.DestinationType A type-safe enumeration of possible job destinations.
static class	JobAttributes.DialogType A type-safe enumeration of possible dialogs to display to the user.
static class	JobAttributes.MultipleDocumentHandlingType A type-safe enumeration of possible multiple copy handling states.
static class	JobAttributes.SidesType A type-safe enumeration of possible multi-page impositions.
class	KeyboardFocusManager The KeyboardFocusManager is responsible for managing the active and focused Windows, and the current focus owner.
class	Label A Label object is a component for placing text in a container.
protected class	Label.AccessibleAWTLabel This class implements accessibility support for the Label class.
class	List The List component presents the user with a scrolling list of text items.
protected class	List.AccessibleAWTList This class implements accessibility support for the List class.
protected class	List.AccessibleAWTList.AccessibleAWTListChild This class implements accessibility support for List children.
class	MediaTracker The MediaTracker class is a utility class to track the status of a number of media objects.
class	Menu A Menu object is a pull-down menu component that is deployed from a menu bar.
protected class	Menu.AccessibleAWTMenu Inner class of Menu used to provide default support for accessibility.
class	MenuBar The MenuBar class encapsulates the platform's concept of a menu bar bound to a frame.
protected class	MenuBar.AccessibleAWTMenuBar Inner class of MenuBar used to provide default support for accessibility.
class	MenuComponent The abstract class MenuComponent is the superclass of all menu-related components.
protected class	MenuComponent.AccessibleAWTMenuComponent Inner class of MenuComponent used to provide default support for accessibility.
class	MenuItem All items in a menu must belong to the class MenuItem, or one of its subclasses.
protected class	MenuItem.AccessibleAWTMenuItem Inner class of MenuItem used to provide default support for accessibility.
class	MenuShortcut The MenuShortcutclass represents a keyboard accelerator for a MenuItem.
class	PageAttributes A set of attributes which control the output of a printed page.
static class	PageAttributes.ColorType A type-safe enumeration of possible color states.
static class	PageAttributes.MediaType A type-safe enumeration of possible paper sizes.
static class	PageAttributes.OrientationRequestedType A type-safe enumeration of possible orientations.
static class	PageAttributes.OriginType A type-safe enumeration of possible origins.
static class	PageAttributes.PrintQualityType A type-safe enumeration of possible print qualities.
class	Panel Panel is the simplest container class.
protected class	Panel.AccessibleAWTPanel This class implements accessibility support for the Panel class.
class	Point A point representing a location in (x, y) coordinate space, specified in integer precision.
class	Polygon The Polygon class encapsulates a description of a closed, two-dimensional region within a coordinate space.
class	PopupMenu A class that implements a menu which can be dynamically popped up at a specified position within a component.
protected class	PopupMenu.AccessibleAWTPopupMenu Inner class of PopupMenu used to provide default support for accessibility.
class	PrintJob An abstract class which initiates and executes a print job.
class	Rectangle A Rectangle specifies an area in a coordinate space that is enclosed by the Rectangle object's top-left point (x, y) in the coordinate space, its width, and its height.
class	RenderingHints The RenderingHints class contains rendering hints that can be used by the Graphics2D class, and classes that implement BufferedImageOp and Raster.
static class	RenderingHints.Key Defines the base type of all keys used to control various aspects of the rendering and imaging pipelines.
class	Robot This class is used to generate native system input events for the purposes of test automation, self-running demos, and other applications where control of the mouse and keyboard is needed.
class	Scrollbar The Scrollbar class embodies a scroll bar, a familiar user-interface object.
protected class	Scrollbar.AccessibleAWTScrollBar This class implements accessibility support for the Scrollbar class.
class	ScrollPane A container class which implements automatic horizontal and/or vertical scrolling for a single child component.
protected class	ScrollPane.AccessibleAWTScrollPane This class implements accessibility support for the ScrollPane class.
class	ScrollPaneAdjustable This class represents the state of a horizontal or vertical scrollbar of a ScrollPane.
class	SystemColor A class to encapsulate symbolic colors representing the color of native GUI objects on a system.
class	TextArea A TextArea object is a multi-line region that displays text.
protected class	TextArea.AccessibleAWTTextArea This class implements accessibility support for the TextArea class.
class	TextComponent The TextComponent class is the superclass of any component that allows the editing of some text.
protected class	TextComponent.AccessibleAWTTextComponent This class implements accessibility support for the TextComponent class.
class	TextField A TextField object is a text component that allows for the editing of a single line of text.
protected class	TextField.AccessibleAWTTextField This class implements accessibility support for the TextField class.
class	TexturePaint The TexturePaint class provides a way to fill a Shape with a texture that is specified as a BufferedImage.
class	Toolkit This class is the abstract superclass of all actual implementations of the Abstract Window Toolkit.
class	Window A Window object is a top-level window with no borders and no menubar.
protected class	Window.AccessibleAWTWindow This class implements accessibility support for the Window class.

Fields in java.awt declared as Object

static Object	RenderingHints.VALUE_ANTIALIAS_ON Antialiasing hint values -- rendering is done with antialiasing.
static Object	RenderingHints.VALUE_ANTIALIAS_OFF Antialiasing hint values -- rendering is done without antialiasing.
static Object	RenderingHints.VALUE_ANTIALIAS_DEFAULT Antialiasing hint values -- rendering is done with the platform default antialiasing mode.
static Object	RenderingHints.VALUE_RENDER_SPEED Rendering hint values -- Appropriate rendering algorithms are chosen with a preference for output speed.
static Object	RenderingHints.VALUE_RENDER_QUALITY Rendering hint values -- Appropriate rendering algorithms are chosen with a preference for output quality.
static Object	RenderingHints.VALUE_RENDER_DEFAULT Rendering hint values -- The platform default rendering algorithms are chosen.
static Object	RenderingHints.VALUE_DITHER_DISABLE Dithering hint values -- do not dither when rendering.
static Object	RenderingHints.VALUE_DITHER_ENABLE Dithering hint values -- dither when rendering, if needed.
static Object	RenderingHints.VALUE_DITHER_DEFAULT Dithering hint values -- use the platform default for dithering.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_ON Text antialiasing hint value -- text rendering is done with antialiasing.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_OFF Text antialiasing hint value -- text rendering is done without antialiasing.
static Object	RenderingHints.VALUE_TEXT_ANTIALIAS_DEFAULT Text antialiasing hint value -- text rendering is done using the platform default text antialiasing mode.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_OFF Font fractional metrics hint values -- fractional metrics disabled.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_ON Font fractional metrics hint values -- fractional metrics enabled.
static Object	RenderingHints.VALUE_FRACTIONALMETRICS_DEFAULT Font fractional metrics hint values -- use the platform default for fractional metrics.
static Object	RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR Interpolation hint value -- INTERPOLATION_NEAREST_NEIGHBOR.
static Object	RenderingHints.VALUE_INTERPOLATION_BILINEAR Interpolation hint value -- INTERPOLATION_BILINEAR.
static Object	RenderingHints.VALUE_INTERPOLATION_BICUBIC Interpolation hint value -- INTERPOLATION_BICUBIC.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_SPEED Alpha interpolation hint value -- ALPHA_INTERPOLATION_SPEED.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY Alpha interpolation hint value -- ALPHA_INTERPOLATION_QUALITY.
static Object	RenderingHints.VALUE_ALPHA_INTERPOLATION_DEFAULT Alpha interpolation hint value -- ALPHA_INTERPOLATION_DEFAULT.
static Object	RenderingHints.VALUE_COLOR_RENDER_SPEED Color rendering hint value -- COLOR_RENDER_SPEED.
static Object	RenderingHints.VALUE_COLOR_RENDER_QUALITY Color rendering hint value -- COLOR_RENDER_QUALITY.
static Object	RenderingHints.VALUE_COLOR_RENDER_DEFAULT Color rendering hint value -- COLOR_RENDER_DEFAULT.
static Object	RenderingHints.VALUE_STROKE_DEFAULT Stroke normalization control hint value -- STROKE_DEFAULT.
static Object	RenderingHints.VALUE_STROKE_NORMALIZE Stroke normalization control hint value -- STROKE_NORMALIZE.
static Object	RenderingHints.VALUE_STROKE_PURE Stroke normalization control hint value -- STROKE_PURE.
static Object	Image.UndefinedProperty The UndefinedProperty object should be returned whenever a property which was not defined for a particular image is fetched.
Object	Event.target The target component.
Object	Event.arg An arbitrary argument of the event.

Methods in java.awt that return Object

protected Object	AWTKeyStroke.readResolve() Returns a cached instance of AWTKeyStroke (or a subclass of AWTKeyStroke) which is equal to this instance.
Object[]	MediaTracker.getErrorsAny() Returns a list of all media that have encountered an error.
Object[]	MediaTracker.getErrorsID(int id) Returns a list of media with the specified ID that have encountered an error.
Object	GridBagConstraints.clone() Creates a copy of this grid bag constraint.
abstract Object	Graphics2D.getRenderingHint(RenderingHints.Key hintKey) Returns the value of a single preference for the rendering algorithms.
Object	PageAttributes.clone() Creates and returns a copy of this PageAttributes.
Object	JobAttributes.clone() Creates and returns a copy of this JobAttributes.
Object[]	CheckboxMenuItem.getSelectedObjects() Returns the an array (length 1) containing the checkbox menu item label or null if the checkbox is not selected.
Object[]	Choice.getSelectedObjects() Returns an array (length 1) containing the currently selected item.
Object[]	Checkbox.getSelectedObjects() Returns an array (length 1) containing the checkbox label or null if the checkbox is not selected.
Object[]	ItemSelectable.getSelectedObjects() Returns the selected items or null if no items are selected.
Object[]	List.getSelectedObjects() Returns the selected items on the list in an array of objects.
Object	RenderingHints.get(Object key) Returns the value to which the specified key is mapped.
Object	RenderingHints.put(Object key, Object value) Maps the specified key to the specified value in this RenderingHints object.
Object	RenderingHints.remove(Object key) Removes the key and its corresponding value from this RenderingHints object.
Object	RenderingHints.clone() Creates a clone of this RenderingHints object that has the same contents as this RenderingHints object.
Object	Insets.clone() Create a copy of this object.
protected Object	MenuComponent.getTreeLock() Gets this component's locking object (the object that owns the thread sychronization monitor) for AWT component-tree and layout operations.
Object	BufferCapabilities.clone()
Object	ImageCapabilities.clone()
abstract Object	Image.getProperty(String name, ImageObserver observer) Gets a property of this image by name.
Object	Toolkit.getDesktopProperty(String propertyName) Obtains a value for the specified desktop property.
protected Object	Toolkit.lazilyLoadDesktopProperty(String name) an opportunity to lazily evaluate desktop property values.
Object	Component.getTreeLock() Gets this component's locking object (the object that owns the thread sychronization monitor) for AWT component-tree and layout operations.

Methods in java.awt with parameters of type Object

protected void	KeyboardFocusManager.firePropertyChange(String propertyName, Object oldValue, Object newValue) Fires a PropertyChangeEvent in response to a change in a bound property.
protected void	KeyboardFocusManager.fireVetoableChange(String propertyName, Object oldValue, Object newValue) Fires a PropertyChangeEvent in response to a change in a vetoable property.
boolean	AWTKeyStroke.equals(Object anObject) Returns true if this object is identical to the specified object.
void	GridBagLayout.addLayoutComponent(Component comp, Object constraints) Adds the specified component to the layout, using the specified constraints object.
void	CardLayout.addLayoutComponent(Component comp, Object constraints) Adds the specified component to this card layout's internal table of names.
void	BorderLayout.addLayoutComponent(Component comp, Object constraints) Adds the specified component to the layout, using the specified constraint object.
void	LayoutManager2.addLayoutComponent(Component comp, Object constraints) Adds the specified component to the layout, using the specified constraint object.
boolean	BasicStroke.equals(Object obj) Tests if a specified object is equal to this BasicStroke by first testing if it is a BasicStroke and then comparing its width, join, cap, miter limit, dash, and dash phase attributes with those of this BasicStroke.
boolean	AlphaComposite.equals(Object obj) Determines whether the specified object is equal to this AlphaComposite.
boolean	MenuShortcut.equals(Object obj) Returns whether this MenuShortcut is the same as another: equality is defined to mean that both MenuShortcuts use the same key and both either use or don't use the SHIFT key.
abstract void	Graphics2D.setRenderingHint(RenderingHints.Key hintKey, Object hintValue) Sets the value of a single preference for the rendering algorithms.
boolean	PageAttributes.equals(Object obj) Determines whether two PageAttributes are equal to each other.
boolean	JobAttributes.equals(Object obj) Determines whether two JobAttributes are equal to each other.
protected void	ScrollPane.addImpl(Component comp, Object constraints, int index) Adds the specified component to this scroll pane container.
boolean	RenderingHints.containsKey(Object key) Returns true if this RenderingHints contains a mapping for the specified key.
boolean	RenderingHints.containsValue(Object value) Returns true if this RenderingHints maps one or more keys to the specified value.
Object	RenderingHints.get(Object key) Returns the value to which the specified key is mapped.
Object	RenderingHints.put(Object key, Object value) Maps the specified key to the specified value in this RenderingHints object.
Object	RenderingHints.remove(Object key) Removes the key and its corresponding value from this RenderingHints object.
boolean	RenderingHints.equals(Object o) Compares the specified Object with this RenderingHints for equality.
abstract boolean	RenderingHints.Key.isCompatibleValue(Object val) Returns true if the specified object is a valid value for this Key.
boolean	RenderingHints.Key.equals(Object o) The equals method for all Key objects will return the same result as the equality operator '=='.
boolean	Insets.equals(Object obj) Checks whether two insets objects are equal.
boolean	Rectangle.equals(Object obj) Checks whether two rectangles are equal.
boolean	Point.equals(Object obj) Determines whether or not two points are equal.
protected void	Toolkit.setDesktopProperty(String name, Object newValue) Sets the named desktop property to the specified value and fires a property change event to notify any listeners that the value has changed.
boolean	Dimension.equals(Object obj) Checks whether two dimension objects have equal values.
boolean	Font.equals(Object obj) Compares this Font object to the specified Object.
boolean	Color.equals(Object obj) Determines whether another object is equal to this Color.
void	Container.add(Component comp, Object constraints) Adds the specified component to the end of this container.
void	Container.add(Component comp, Object constraints, int index) Adds the specified component to this container with the specified constraints at the specified index.
protected void	Container.addImpl(Component comp, Object constraints, int index) Adds the specified component to this container at the specified index.
boolean	Component.action(Event evt, Object what) Deprecated. As of JDK version 1.1, should register this component as ActionListener on component which fires action events.
boolean	Component.gotFocus(Event evt, Object what) Deprecated. As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
boolean	Component.lostFocus(Event evt, Object what) Deprecated. As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
protected void	Component.firePropertyChange(String propertyName, Object oldValue, Object newValue) Support for reporting bound property changes for Object properties.
void	AWTEvent.setSource(Object newSource) Retargets an event to a new source.

Constructors in java.awt with parameters of type Object

RenderingHints(RenderingHints.Key key, Object value)
Constructs a new object with the specified key/value pair.

AWTEvent(Object source, int id)
Constructs an AWTEvent object with the specified source object and type.

Event(Object target, long when, int id, int x, int y, int key, int modifiers, Object arg)
NOTE: The Event class is obsolete and is available only for backwards compatilibility.

Event(Object target, long when, int id, int x, int y, int key, int modifiers)
NOTE: The Event class is obsolete and is available only for backwards compatilibility.

Event(Object target, int id, Object arg)
NOTE: The Event class is obsolete and is available only for backwards compatilibility.

Uses of Object in java.awt.color

Subclasses of Object in java.awt.color

class	CMMException This exception is thrown if the native CMM returns an error.
class	ColorSpace This abstract class is used to serve as a color space tag to identify the specific color space of a Color object or, via a ColorModel object, of an Image, a BufferedImage, or a GraphicsDevice.
class	ICC_ColorSpace The ICC_ColorSpace class is an implementation of the abstract ColorSpace class.
class	ICC_Profile A representation of color profile data for device independent and device dependent color spaces based on the International Color Consortium Specification ICC.1:1998-09, File Format for Color Profiles, September 1998, and the addendum ICC.1A:1999-04, April 1999, to that specification (see http://www.color.org).
class	ICC_ProfileGray A subclass of the ICC_Profile class which represents profiles which meet the following criteria: the color space type of the profile is TYPE_GRAY and the profile includes the grayTRCTag and mediaWhitePointTag tags.
class	ICC_ProfileRGB The ICC_ProfileRGB class is a subclass of the ICC_Profile class that represents profiles which meet the following criteria: The profile's color space type is RGB. The profile includes the redColorantTag, greenColorantTag, blueColorantTag, redTRCTag, greenTRCTag, blueTRCTag, and mediaWhitePointTag tags. The ICC_Profile getInstance method will return an ICC_ProfileRGB object when these conditions are met.
class	ProfileDataException This exception is thrown when an error occurs in accessing or processing an ICC_Profile object.

Methods in java.awt.color that return Object

protected Object

ICC_Profile.readResolve() Resolves instances being deserialized into instances registered with CMM.

Uses of Object in java.awt.datatransfer

Subclasses of Object in java.awt.datatransfer

class	Clipboard A class which implements a mechanism to transfer data using cut/copy/paste operations.
class	DataFlavor Each instance represents the opaque concept of a data format as would appear on a clipboard, during drag and drop, or in a file system.
class	MimeTypeParseException A class to encapsulate MimeType parsing related exceptions
class	StringSelection A Transferable which implements the capability required to transfer a String.
class	SystemFlavorMap The SystemFlavorMap is a configurable map between "natives" (Strings), which correspond to platform-specific data formats, and "flavors" (DataFlavors), which correspond to platform-independent MIME types.
class	UnsupportedFlavorException Signals that the requested data is not supported in this flavor.

Methods in java.awt.datatransfer that return Object

Object	StringSelection.getTransferData(DataFlavor flavor) Returns the Transferable's data in the requested DataFlavor if possible.
Object	Transferable.getTransferData(DataFlavor flavor) Returns an object which represents the data to be transferred.
Object	DataFlavor.clone() Returns a clone of this DataFlavor.

Methods in java.awt.datatransfer with parameters of type Object

boolean	DataFlavor.equals(Object o) Tests an arbitrary Object to this DataFlavor for equality.
Transferable	Clipboard.getContents(Object requestor) Returns a transferable object representing the current contents of the clipboard.

Uses of Object in java.awt.dnd

Subclasses of Object in java.awt.dnd

class	DnDConstants This class contains constant values representing the type of action(s) to be performed by a Drag and Drop operation.
class	DragGestureEvent A DragGestureEvent is passed to DragGestureListener's dragGestureRecognized() method when a particular DragGestureRecognizer detects that a platform dependent drag initiating gesture has occurred on the Component that it is tracking.
class	DragGestureRecognizer The DragGestureRecognizer is an abstract base class for the specification of a platform-dependent listener that can be associated with a particular Component in order to identify platform-dependent drag initiating gestures.
class	DragSource The DragSource is the entity responsible for the initiation of the Drag and Drop operation, and may be used in a number of scenarios: 1 default instance per JVM for the lifetime of that JVM.
class	DragSourceAdapter An abstract adapter class for receiving drag source events.
class	DragSourceContext The DragSourceContext class is responsible for managing the initiator side of the Drag and Drop protocol.
class	DragSourceDragEvent The DragSourceDragEvent is delivered from the DragSourceContextPeer, via the DragSourceContext, to the DragSourceListener registered with that DragSourceContext and with its associated DragSource.
class	DragSourceDropEvent The DragSourceDropEvent is delivered from the DragSourceContextPeer, via the DragSourceContext, to the dragDropEnd method of DragSourceListeners registered with that DragSourceContext and with its associated DragSource.
class	DragSourceEvent This class is the base class for DragSourceDragEvent and DragSourceDropEvent.
class	DropTarget The DropTarget is associated with a Component when that Component wishes to accept drops during Drag and Drop operations.
protected static class	DropTarget.DropTargetAutoScroller this protected nested class implements autoscrolling
class	DropTargetAdapter An abstract adapter class for receiving drop target events.
class	DropTargetContext A DropTargetContext is created whenever the logical cursor associated with a Drag and Drop operation coincides with the visible geometry of a Component associated with a DropTarget.
protected class	DropTargetContext.TransferableProxy TransferableProxy is a helper inner class that implements Transferable interface and serves as a proxy for another Transferable object which represents data transfer for a particular drag-n-drop operation.
class	DropTargetDragEvent The DropTargetDragEvent is delivered to a DropTargetListener via its dragEnter() and dragOver() methods.
class	DropTargetDropEvent The DropTargetDropEvent is delivered via the DropTargetListener drop() method.
class	DropTargetEvent The DropTargetEvent is the base class for both the DropTargetDragEvent and the DropTargetDropEvent.
class	InvalidDnDOperationException This exception is thrown by various methods in the java.awt.dnd package.
class	MouseDragGestureRecognizer This abstract subclass of DragGestureRecognizer defines a DragGestureRecognizer for mouse based gestures.

Methods in java.awt.dnd that return Object

Object[]	DragGestureEvent.toArray() Returns an Object array of the events comprising the drag gesture.
Object[]	DragGestureEvent.toArray(Object[] array) Returns an array of the events comprising the drag gesture.
Object	DropTargetContext.TransferableProxy.getTransferData(DataFlavor df) Returns an object which represents the data provided by the encapsulated transferable for the requested data flavor.

Methods in java.awt.dnd with parameters of type Object

Object[]

DragGestureEvent.toArray(Object[] array) Returns an array of the events comprising the drag gesture.

Uses of Object in java.awt.event

Subclasses of Object in java.awt.event

class	ActionEvent A semantic event which indicates that a component-defined action occured.
class	AdjustmentEvent The adjustment event emitted by Adjustable objects.
class	AWTEventListenerProxy A class which extends the EventListenerProxy, specifically for adding an AWTEventListener for a specific event mask.
class	ComponentAdapter An abstract adapter class for receiving component events.
class	ComponentEvent A low-level event which indicates that a component moved, changed size, or changed visibility (also, the root class for the other component-level events).
class	ContainerAdapter An abstract adapter class for receiving container events.
class	ContainerEvent A low-level event which indicates that a container's contents changed because a component was added or removed.
class	FocusAdapter An abstract adapter class for receiving keyboard focus events.
class	FocusEvent A low-level event which indicates that a Component has gained or lost the input focus.
class	HierarchyBoundsAdapter An abstract adapter class for receiving ancestor moved and resized events.
class	HierarchyEvent An event which indicates a change to the Component hierarchy to which a Component belongs.
class	InputEvent The root event class for all component-level input events.
class	InputMethodEvent Input method events contain information about text that is being composed using an input method.
class	InvocationEvent An event which executes the run() method on a Runnable when dispatched by the AWT event dispatcher thread.
class	ItemEvent A semantic event which indicates that an item was selected or deselected.
class	KeyAdapter An abstract adapter class for receiving keyboard events.
class	KeyEvent An event which indicates that a keystroke occurred in a component.
class	MouseAdapter An abstract adapter class for receiving mouse events.
class	MouseEvent An event which indicates that a mouse action occurred in a component.
class	MouseMotionAdapter An abstract adapter class for receiving mouse motion events.
class	MouseWheelEvent An event which indicates that the mouse wheel was rotated in a component.
class	PaintEvent The component-level paint event.
class	TextEvent A semantic event which indicates that an object's text changed.
class	WindowAdapter An abstract adapter class for receiving window events.
class	WindowEvent A low-level event that indicates that a window has changed its status.

Fields in java.awt.event declared as Object

protected Object

InvocationEvent.notifier The (potentially null) Object whose notifyAll() method will be called immediately after the Runnable.run() method returns.

Methods in java.awt.event that return Object

Object

ItemEvent.getItem() Returns the item affected by the event.

Constructors in java.awt.event with parameters of type Object

InvocationEvent(Object source, Runnable runnable)
Constructs an InvocationEvent with the specified source which will execute the runnable's run method when dispatched.

InvocationEvent(Object source, Runnable runnable, Object notifier, boolean catchExceptions)
Constructs an InvocationEvent with the specified source which will execute the runnable's run method when dispatched.

InvocationEvent(Object source, int id, Runnable runnable, Object notifier, boolean catchExceptions)
Constructs an InvocationEvent with the specified source and ID which will execute the runnable's run method when dispatched.

ItemEvent(ItemSelectable source, int id, Object item, int stateChange)
Constructs an ItemEvent object.

TextEvent(Object source, int id)
Constructs a TextEvent object.

ActionEvent(Object source, int id, String command)
Constructs an ActionEvent object.

ActionEvent(Object source, int id, String command, int modifiers)
Constructs an ActionEvent object with modifier keys.

ActionEvent(Object source, int id, String command, long when, int modifiers)
Constructs an ActionEvent object with the specified modifier keys and timestamp.

Uses of Object in java.awt.font

Subclasses of Object in java.awt.font

class	FontRenderContext The FontRenderContext class is a container for the information needed to correctly measure text.
class	GlyphJustificationInfo The GlyphJustificationInfo class represents information about the justification properties of a glyph.
class	GlyphMetrics The GlyphMetrics class represents infomation for a single glyph.
class	GlyphVector A GlyphVector object is a collection of glyphs containing geometric information for the placement of each glyph in a transformed coordinate space which corresponds to the device on which the GlyphVector is ultimately displayed.
class	GraphicAttribute This class is used with the CHAR_REPLACEMENT attribute.
class	ImageGraphicAttribute The ImageGraphicAttribute class is an implementation of GraphicAttribute which draws images in a TextLayout.
class	LineBreakMeasurer The LineBreakMeasurer class allows styled text to be broken into lines (or segments) that fit within a particular visual advance.
class	LineMetrics The LineMetrics class allows access to the metrics needed to layout characters along a line and to layout of a set of lines.
class	NumericShaper The NumericShaper class is used to convert Latin-1 (European) digits to other Unicode decimal digits.
class	ShapeGraphicAttribute The ShapeGraphicAttribute class is an implementation of GraphicAttribute that draws shapes in a TextLayout.
class	TextAttribute The TextAttribute class defines attribute keys and attribute values used for text rendering.
class	TextHitInfo The TextHitInfo class represents a character position in a text model, and a bias, or "side," of the character.
class	TextLayout TextLayout is an immutable graphical representation of styled character data.
static class	TextLayout.CaretPolicy Defines a policy for determining the strong caret location.
class	TextMeasurer The TextMeasurer class provides the primitive operations needed for line break: measuring up to a given advance, determining the advance of a range of characters, and generating a TextLayout for a range of characters.
class	TransformAttribute The TransformAttribute class provides an immutable wrapper for a transform so that it is safe to use as an attribute.

Methods in java.awt.font that return Object

protected Object	TextAttribute.readResolve() Resolves instances being deserialized to the predefined constants.
protected Object	TextLayout.clone() Creates a copy of this TextLayout.
protected Object	TextMeasurer.clone()

Methods in java.awt.font with parameters of type Object

boolean	ShapeGraphicAttribute.equals(Object rhs) Compares this ShapeGraphicAttribute to the specified Object.
boolean	NumericShaper.equals(Object o) Returns true if the specified object is an instance of NumericShaper and shapes identically to this one.
boolean	TextLayout.equals(Object obj) Returns true if the specified Object is a TextLayout object and if the specified Object equals this TextLayout.
boolean	ImageGraphicAttribute.equals(Object rhs) Compares this ImageGraphicAttribute to the specified Object.
boolean	TextHitInfo.equals(Object obj) Returns true if the specified Object is a TextHitInfo and equals this TextHitInfo.
boolean	FontRenderContext.equals(Object obj) Return true if obj is an instance of FontRenderContext and has the same transform, antialiasing, and fractional metrics values as this.

Uses of Object in java.awt.geom

Subclasses of Object in java.awt.geom

class	AffineTransform The AffineTransform class represents a 2D affine transform that performs a linear mapping from 2D coordinates to other 2D coordinates that preserves the "straightness" and "parallelness" of lines.
class	Arc2D Arc2D is the abstract superclass for all objects that store a 2D arc defined by a bounding rectangle, start angle, angular extent (length of the arc), and a closure type (OPEN, CHORD, or PIE).
static class	Arc2D.Double This class defines an arc specified in double precision.
static class	Arc2D.Float This class defines an arc specified in float precision.
class	Area The Area class is a device-independent specification of an arbitrarily-shaped area.
class	CubicCurve2D The CubicCurve2D class defines a cubic parametric curve segment in (x, y) coordinate space.
static class	CubicCurve2D.Double A cubic parametric curve segment specified with double coordinates.
static class	CubicCurve2D.Float A cubic parametric curve segment specified with float coordinates.
class	Dimension2D The Dimension2D class is to encapsulate a width and a height dimension.
class	Ellipse2D The Ellipse2D class describes an ellipse that is defined by a bounding rectangle.
static class	Ellipse2D.Double The Double class defines an ellipse specified in double precision.
static class	Ellipse2D.Float The Float class defines an ellipse specified in float precision.
class	FlatteningPathIterator The FlatteningPathIterator class returns a flattened view of another PathIterator object.
class	GeneralPath The GeneralPath class represents a geometric path constructed from straight lines, and quadratic and cubic (Bézier) curves.
class	IllegalPathStateException The IllegalPathStateException represents an exception that is thrown if an operation is performed on a path that is in an illegal state with respect to the particular operation being performed, such as appending a path segment to a GeneralPath without an initial moveto.
class	Line2D This Line2D represents a line segment in (x, y) coordinate space.
static class	Line2D.Double A line segment specified with double coordinates.
static class	Line2D.Float A line segment specified with float coordinates.
class	NoninvertibleTransformException The NoninvertibleTransformException class represents an exception that is thrown if an operation is performed requiring the inverse of an AffineTransform object but the AffineTransform is in a non-invertible state.
class	Point2D The Point2D class defines a point representing a location in (x, y) coordinate space.
static class	Point2D.Double The Double class defines a point specified in double precision.
static class	Point2D.Float The Float class defines a point specified in float precision.
class	QuadCurve2D The QuadCurve2D class defines a quadratic parametric curve segment in (x, y) coordinate space.
static class	QuadCurve2D.Double A quadratic parametric curve segment specified with double coordinates.
static class	QuadCurve2D.Float A quadratic parametric curve segment specified with float coordinates.
class	Rectangle2D The Rectangle2D class describes a rectangle defined by a location (x, y) and dimension (w x h).
static class	Rectangle2D.Double The Double class defines a rectangle specified in double coordinates.
static class	Rectangle2D.Float The Float class defines a rectangle specified in float coordinates.
class	RectangularShape RectangularShape is the base class for a number of Shape objects whose geometry is defined by a rectangular frame.
class	RoundRectangle2D The RoundRectangle2D class defines a rectangle with rounded corners defined by a location (x, y), a dimension (w x h), and the width and height of an arc with which to round the corners.
static class	RoundRectangle2D.Double The Double class defines a rectangle with rounded corners all specified in double coordinates.
static class	RoundRectangle2D.Float The Float class defines a rectangle with rounded corners all specified in float coordinates.

Methods in java.awt.geom that return Object

Object	QuadCurve2D.clone() Creates a new object of the same class and with the same contents as this object.
Object	CubicCurve2D.clone() Creates a new object of the same class as this object.
Object	Area.clone() Returns an exact copy of this Area object.
Object	GeneralPath.clone() Creates a new object of the same class as this object.
Object	Line2D.clone() Creates a new object of the same class as this object.
Object	AffineTransform.clone() Returns a copy of this AffineTransform object.
Object	RectangularShape.clone() Creates a new object of the same class and with the same contents as this object.
Object	Dimension2D.clone() Creates a new object of the same class as this object.
Object	Point2D.clone() Creates a new object of the same class and with the same contents as this object.

Methods in java.awt.geom with parameters of type Object

boolean	AffineTransform.equals(Object obj) Returns true if this AffineTransform represents the same affine coordinate transform as the specified argument.
boolean	Rectangle2D.equals(Object obj) Determines whether or not the specified Object is equal to this Rectangle2D.
boolean	Point2D.equals(Object obj) Determines whether or not two points are equal.

Uses of Object in java.awt.im

Subclasses of Object in java.awt.im

class	InputContext Provides methods to control text input facilities such as input methods and keyboard layouts.
class	InputMethodHighlight An InputMethodHighlight is used to describe the highlight attributes of text being composed.
class	InputSubset Defines additional Unicode subsets for use by input methods.

Methods in java.awt.im that return Object

Object

InputContext.getInputMethodControlObject() Returns a control object from the current input method, or null.

Uses of Object in java.awt.im.spi

Methods in java.awt.im.spi that return Object

Object

InputMethod.getControlObject() Returns a control object from this input method, or null.

Uses of Object in java.awt.image

Subclasses of Object in java.awt.image

class	AffineTransformOp This class uses an affine transform to perform a linear mapping from 2D coordinates in the source image or Raster to 2D coordinates in the destination image or Raster.
class	AreaAveragingScaleFilter An ImageFilter class for scaling images using a simple area averaging algorithm that produces smoother results than the nearest neighbor algorithm.
class	BandCombineOp This class performs an arbitrary linear combination of the bands in a Raster, using a specified matrix.
class	BandedSampleModel This class represents image data which is stored in a band interleaved fashion and for which each sample of a pixel occupies one data element of the DataBuffer.
class	BufferedImage The BufferedImage subclass describes an Image with an accessible buffer of image data.
class	BufferedImageFilter The BufferedImageFilter class subclasses an ImageFilter to provide a simple means of using a single-source/single-destination image operator (BufferedImageOp) to filter a BufferedImage in the Image Producer/Consumer/Observer paradigm.
class	BufferStrategy The BufferStrategy class represents the mechanism with which to organize complex memory on a particular Canvas or Window.
class	ByteLookupTable This class defines a lookup table object.
class	ColorConvertOp This class performs a pixel-by-pixel color conversion of the data in the source image.
class	ColorModel The ColorModel abstract class encapsulates the methods for translating a pixel value to color components (for example, red, green, and blue) and an alpha component.
class	ComponentColorModel A ColorModel class that works with pixel values that represent color and alpha information as separate samples and that store each sample in a separate data element.
class	ComponentSampleModel This class represents image data which is stored such that each sample of a pixel occupies one data element of the DataBuffer.
class	ConvolveOp This class implements a convolution from the source to the destination.
class	CropImageFilter An ImageFilter class for cropping images.
class	DataBuffer This class exists to wrap one or more data arrays.
class	DataBufferByte This class extends DataBuffer and stores data internally as bytes.
class	DataBufferDouble This class extends DataBuffer and stores data internally in double form.
class	DataBufferFloat This class extends DataBuffer and stores data internally in float form.
class	DataBufferInt This class extends DataBuffer and stores data internally as integers.
class	DataBufferShort This class extends DataBuffer and stores data internally as shorts.
class	DataBufferUShort This class extends DataBuffer and stores data internally as shorts.
class	DirectColorModel The DirectColorModel class is a ColorModel class that works with pixel values that represent RGB color and alpha information as separate samples and that pack all samples for a single pixel into a single int, short, or byte quantity.
class	FilteredImageSource This class is an implementation of the ImageProducer interface which takes an existing image and a filter object and uses them to produce image data for a new filtered version of the original image.
class	ImageFilter This class implements a filter for the set of interface methods that are used to deliver data from an ImageProducer to an ImageConsumer.
class	ImagingOpException The ImagingOpException is thrown if one of the BufferedImageOp or RasterOp filter methods cannot process the image.
class	IndexColorModel The IndexColorModel class is a ColorModel class that works with pixel values consisting of a single sample that is an index into a fixed colormap in the default sRGB color space.
class	Kernel The Kernel class defines a matrix that describes how a specified pixel and its surrounding pixels affect the value computed for the pixel's position in the output image of a filtering operation.
class	LookupOp This class implements a lookup operation from the source to the destination.
class	LookupTable This abstract class defines a lookup table object.
class	MemoryImageSource This class is an implementation of the ImageProducer interface which uses an array to produce pixel values for an Image.
class	MultiPixelPackedSampleModel The MultiPixelPackedSampleModel class represents one-banded images and can pack multiple one-sample pixels into one data element.
class	PackedColorModel The PackedColorModel class is an abstract ColorModel class that works with pixel values which represent color and alpha information as separate samples and which pack all samples for a single pixel into a single int, short, or byte quantity.
class	PixelGrabber The PixelGrabber class implements an ImageConsumer which can be attached to an Image or ImageProducer object to retrieve a subset of the pixels in that image.
class	PixelInterleavedSampleModel This class represents image data which is stored in a pixel interleaved fashion and for which each sample of a pixel occupies one data element of the DataBuffer.
class	Raster A class representing a rectangular array of pixels.
class	RasterFormatException The RasterFormatException is thrown if there is invalid layout information in the Raster.
class	ReplicateScaleFilter An ImageFilter class for scaling images using the simplest algorithm.
class	RescaleOp This class performs a pixel-by-pixel rescaling of the data in the source image by multiplying the sample values for each pixel by a scale factor and then adding an offset.
class	RGBImageFilter This class provides an easy way to create an ImageFilter which modifies the pixels of an image in the default RGB ColorModel.
class	SampleModel This abstract class defines an interface for extracting samples of pixels in an image.
class	ShortLookupTable This class defines a lookup table object.
class	SinglePixelPackedSampleModel This class represents pixel data packed such that the N samples which make up a single pixel are stored in a single data array element, and each data data array element holds samples for only one pixel.
class	VolatileImage VolatileImage is an image which can lose its contents at any time due to circumstances beyond the control of the application (e.g., situations caused by the operating system or by other applications).
class	WritableRaster This class extends Raster to provide pixel writing capabilities.

Fields in java.awt.image declared as Object

protected Object

ReplicateScaleFilter.outpixbuf A byte array initialized with a size of ReplicateScaleFilter.destWidth and used to deliver a row of pixel data to the ImageConsumer.

Methods in java.awt.image that return Object

Object	MultiPixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	BandedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	Kernel.clone() Clones this object.
Object	PixelGrabber.getPixels() Get the pixel buffer.
Object	ImageFilter.clone() Clones this object.
Object	DirectColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	DirectColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ComponentSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	SinglePixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	ComponentColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ComponentColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ComponentColorModel.getDataElements(float[] normComponents, int normOffset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
Object	IndexColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	IndexColorModel.getDataElements(int[] components, int offset, Object pixel) Returns a data element array representation of a pixel in this ColorModel given an array of unnormalized color/alpha components.
abstract Object	SampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	SampleModel.getDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, Object outData) Returns data for a single pixel in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, int w, int h, Object outData) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
Object	RenderedImage.getProperty(String name) Gets a property from the property set of this image.
Object	BufferedImage.getProperty(String name, ImageObserver observer) Returns a property of the image by name.
Object	BufferedImage.getProperty(String name) Returns a property of the image by name.
Object	ColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
Object	ColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ColorModel.getDataElements(float[] normComponents, int normOffset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.

Methods in java.awt.image with parameters of type Object

Object	MultiPixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
void	MultiPixelPackedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
boolean	MultiPixelPackedSampleModel.equals(Object o)
Object	BandedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
void	BandedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
boolean	PackedColorModel.equals(Object obj) Tests if the specified Object is an instance of PackedColorModel and equals this PackedColorModel.
int	DirectColorModel.getRed(Object inData) Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getGreen(Object inData) Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getBlue(Object inData) Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	DirectColorModel.getAlpha(Object inData) Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	DirectColorModel.getRGB(Object inData) Returns the color/alpha components for the specified pixel in the default RGB color model format.
Object	DirectColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
int[]	DirectColorModel.getComponents(Object pixel, int[] components, int offset) Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
Object	DirectColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ComponentSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
void	ComponentSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
boolean	ComponentSampleModel.equals(Object o)
Object	SinglePixelPackedSampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
void	SinglePixelPackedSampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
boolean	SinglePixelPackedSampleModel.equals(Object o)
int	ComponentColorModel.getRed(Object inData) Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ComponentColorModel.getGreen(Object inData) Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ComponentColorModel.getBlue(Object inData) Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ComponentColorModel.getAlpha(Object inData) Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	ComponentColorModel.getRGB(Object inData) Returns the color/alpha components for the specified pixel in the default RGB color model format.
Object	ComponentColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
int[]	ComponentColorModel.getComponents(Object pixel, int[] components, int offset) Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
Object	ComponentColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ComponentColorModel.getDataElements(float[] normComponents, int normOffset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
float[]	ComponentColorModel.getNormalizedComponents(Object pixel, float[] normComponents, int normOffset) Returns an array of all of the color/alpha components in normalized form, given a pixel in this ColorModel.
boolean	ComponentColorModel.equals(Object obj) Compares this color model with another for equality.
Object	IndexColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
int[]	IndexColorModel.getComponents(Object pixel, int[] components, int offset) Returns an array of unnormalized color/alpha components for a specified pixel in this ColorModel.
Object	IndexColorModel.getDataElements(int[] components, int offset, Object pixel) Returns a data element array representation of a pixel in this ColorModel given an array of unnormalized color/alpha components.
abstract Object	SampleModel.getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
Object	SampleModel.getDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
abstract void	SampleModel.setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	SampleModel.setDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) Sets the data for a rectangle of pixels in the specified DataBuffer from a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, Object outData) Returns data for a single pixel in a primitive array of type TransferType.
Object	Raster.getDataElements(int x, int y, int w, int h, Object outData) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
void	WritableRaster.setDataElements(int x, int y, Object inData) Sets the data for a single pixel from a primitive array of type TransferType.
void	WritableRaster.setDataElements(int x, int y, int w, int h, Object inData) Sets the data for a rectangle of pixels from a primitive array of type TransferType.
int	ColorModel.getRed(Object inData) Returns the red color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ColorModel.getGreen(Object inData) Returns the green color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ColorModel.getBlue(Object inData) Returns the blue color component for the specified pixel, scaled from 0 to 255 in the default RGB ColorSpace, sRGB.
int	ColorModel.getAlpha(Object inData) Returns the alpha component for the specified pixel, scaled from 0 to 255.
int	ColorModel.getRGB(Object inData) Returns the color/alpha components for the specified pixel in the default RGB color model format.
Object	ColorModel.getDataElements(int rgb, Object pixel) Returns a data element array representation of a pixel in this ColorModel, given an integer pixel representation in the default RGB color model.
int[]	ColorModel.getComponents(Object pixel, int[] components, int offset) Returns an array of unnormalized color/alpha components given a pixel in this ColorModel.
Object	ColorModel.getDataElements(int[] components, int offset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of unnormalized color/alpha components.
Object	ColorModel.getDataElements(float[] normComponents, int normOffset, Object obj) Returns a data element array representation of a pixel in this ColorModel, given an array of normalized color/alpha components.
float[]	ColorModel.getNormalizedComponents(Object pixel, float[] normComponents, int normOffset) Returns an array of all of the color/alpha components in normalized form, given a pixel in this ColorModel.
boolean	ColorModel.equals(Object obj) Tests if the specified Object is an instance of ColorModel and if it equals this ColorModel.

Uses of Object in java.awt.image.renderable

Subclasses of Object in java.awt.image.renderable

class	ParameterBlock A ParameterBlock encapsulates all the information about sources and parameters (Objects) required by a RenderableImageOp, or other classes that process images.
class	RenderableImageOp This class handles the renderable aspects of an operation with help from its associated instance of a ContextualRenderedImageFactory.
class	RenderableImageProducer An adapter class that implements ImageProducer to allow the asynchronous production of a RenderableImage.
class	RenderContext A RenderContext encapsulates the information needed to produce a specific rendering from a RenderableImage.

Methods in java.awt.image.renderable that return Object

Object	RenderableImageOp.getProperty(String name) Gets a property from the property set of this image.
Object	ContextualRenderedImageFactory.getProperty(ParameterBlock paramBlock, String name) Gets the appropriate instance of the property specified by the name parameter.
Object	ParameterBlock.shallowClone() Creates a shallow copy of a ParameterBlock.
Object	ParameterBlock.clone() Creates a copy of a ParameterBlock.
Object	ParameterBlock.getSource(int index) Returns a source as a general Object.
Object	ParameterBlock.getObjectParameter(int index) Gets a parameter as an object.
Object	RenderContext.clone() Makes a copy of a RenderContext.
Object	RenderableImage.getProperty(String name) Gets a property from the property set of this image.

Methods in java.awt.image.renderable with parameters of type Object

ParameterBlock	ParameterBlock.addSource(Object source) Adds an image to end of the list of sources.
ParameterBlock	ParameterBlock.setSource(Object source, int index) Replaces an entry in the list of source with a new source.
ParameterBlock	ParameterBlock.add(Object obj) Adds an object to the list of parameters.
ParameterBlock	ParameterBlock.set(Object obj, int index) Replaces an Object in the list of parameters.

Uses of Object in java.awt.print

Subclasses of Object in java.awt.print

class	Book The Book class provides a representation of a document in which pages may have different page formats and page painters.
class	PageFormat The PageFormat class describes the size and orientation of a page to be printed.
class	Paper The Paper class describes the physical characteristics of a piece of paper.
class	PrinterAbortException The PrinterAbortException class is a subclass of PrinterException and is used to indicate that a user or application has terminated the print job while it was in the process of printing.
class	PrinterException The PrinterException class and its subclasses are used to indicate that an exceptional condition has occurred in the print system.
class	PrinterIOException The PrinterIOException class is a subclass of PrinterException and is used to indicate that an IO error of some sort has occurred while printing.
class	PrinterJob The PrinterJob class is the principal class that controls printing.

Methods in java.awt.print that return Object

Object	Paper.clone() Creates a copy of this Paper with the same contents as this Paper.
Object	PageFormat.clone() Makes a copy of this PageFormat with the same contents as this PageFormat.

Uses of Object in java.beans

Subclasses of Object in java.beans

class	BeanDescriptor A BeanDescriptor provides global information about a "bean", including its Java class, its displayName, etc.
class	Beans This class provides some general purpose beans control methods.
class	DefaultPersistenceDelegate The DefaultPersistenceDelegate is a concrete implementation of the abstract PersistenceDelegate class and is the delegate used by default for classes about which no information is available.
class	Encoder An Encoder is a class which can be used to create files or streams that encode the state of a collection of JavaBeans in terms of their public APIs.
class	EventHandler The EventHandler class provides support for dynamically generating event listeners whose methods execute a simple statement involving an incoming event object and a target object.
class	EventSetDescriptor An EventSetDescriptor describes a group of events that a given Java bean fires.
class	Expression An Expression object represents a primitive expression in which a single method is applied to a target and a set of arguments to return a result - as in "a.getFoo()".
class	FeatureDescriptor The FeatureDescriptor class is the common baseclass for PropertyDescriptor, EventSetDescriptor, and MethodDescriptor, etc.
class	IndexedPropertyDescriptor An IndexedPropertyDescriptor describes a property that acts like an array and has an indexed read and/or indexed write method to access specific elements of the array.
class	IntrospectionException Thrown when an exception happens during Introspection.
class	Introspector The Introspector class provides a standard way for tools to learn about the properties, events, and methods supported by a target Java Bean.
class	MethodDescriptor A MethodDescriptor describes a particular method that a Java Bean supports for external access from other components.
class	ParameterDescriptor The ParameterDescriptor class allows bean implementors to provide additional information on each of their parameters, beyond the low level type information provided by the java.lang.reflect.Method class.
class	PersistenceDelegate The PersistenceDelegate class takes the responsibility for expressing the state of an instance of a given class in terms of the methods in the class's public API.
class	PropertyChangeEvent A "PropertyChange" event gets delivered whenever a bean changes a "bound" or "constrained" property.
class	PropertyChangeListenerProxy A class which extends the EventListenerProxy specifically for adding a named PropertyChangeListener.
class	PropertyChangeSupport This is a utility class that can be used by beans that support bound properties.
class	PropertyDescriptor A PropertyDescriptor describes one property that a Java Bean exports via a pair of accessor methods.
class	PropertyEditorManager The PropertyEditorManager can be used to locate a property editor for any given type name.
class	PropertyEditorSupport This is a support class to help build property editors.
class	PropertyVetoException A PropertyVetoException is thrown when a proposed change to a property represents an unacceptable value.
class	SimpleBeanInfo This is a support class to make it easier for people to provide BeanInfo classes.
class	Statement A Statement object represents a primitive statement in which a single method is applied to a target and a set of arguments - as in "a.setFoo(b)".
class	VetoableChangeListenerProxy A class which extends the EventListenerProxy specifically for associating a VetoableChangeListener with a "constrained" property.
class	VetoableChangeSupport This is a utility class that can be used by beans that support constrained properties.
class	XMLDecoder The XMLDecoder class is used to read XML documents created using the XMLEncoder and is used just like the ObjectInputStream.
class	XMLEncoder The XMLEncoder class is a complementary alternative to the ObjectOutputStream and can used to generate a textual representation of a JavaBean in the same way that the ObjectOutputStream can be used to create binary representation of Serializable objects.

Methods in java.beans that return Object

Object	EventHandler.getTarget() Returns the object to which this event handler will send a message.
Object	EventHandler.invoke(Object proxy, Method method, Object[] arguments) Extract the appropriate property value from the event and pass it to the action associated with this EventHandler.
static Object	EventHandler.create(Class listenerInterface, Object target, String action) Creates an implementation of listenerInterface in which all of the methods in the listener interface apply the handler's action to the target.
static Object	EventHandler.create(Class listenerInterface, Object target, String action, String eventPropertyName) Creates an implementation of listenerInterface in which all of the methods pass the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.
static Object	EventHandler.create(Class listenerInterface, Object target, String action, String eventPropertyName, String listenerMethodName) Creates an implementation of listenerInterface in which the method named listenerMethodName passes the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.
Object	XMLDecoder.readObject() Reads the next object from the underlying input stream.
Object	XMLDecoder.getOwner() Gets the owner of this decoder.
Object	XMLEncoder.getOwner() Gets the owner of this encoder.
Object	Statement.getTarget() Returns the target of this statement.
Object[]	Statement.getArguments() Returns the arguments of this statement.
Object	Expression.getValue() If the value property of this instance is not already set, this method dynamically finds the method with the specified methodName on this target with these arguments and calls it.
Object	Encoder.remove(Object oldInstance) Removes the entry for this instance, returning the old entry.
Object	Encoder.get(Object oldInstance) Returns a tentative value for oldInstance in the environment created by this stream.
Object	PropertyEditorSupport.getValue() Gets the value of the property.
static Object	Beans.instantiate(ClassLoader cls, String beanName) Instantiate a JavaBean.
static Object	Beans.instantiate(ClassLoader cls, String beanName, BeanContext beanContext) Instantiate a JavaBean.
static Object	Beans.instantiate(ClassLoader cls, String beanName, BeanContext beanContext, AppletInitializer initializer) Instantiate a bean.
static Object	Beans.getInstanceOf(Object bean, Class targetType) From a given bean, obtain an object representing a specified type view of that source object.
Object	PropertyEditor.getValue() Gets the property value.
Object	FeatureDescriptor.getValue(String attributeName) Retrieve a named attribute with this feature.
Object	PropertyChangeEvent.getNewValue() Sets the new value for the property, expressed as an Object.
Object	PropertyChangeEvent.getOldValue() Gets the old value for the property, expressed as an Object.
Object	PropertyChangeEvent.getPropagationId() The "propagationId" field is reserved for future use.

Methods in java.beans with parameters of type Object

Object	EventHandler.invoke(Object proxy, Method method, Object[] arguments) Extract the appropriate property value from the event and pass it to the action associated with this EventHandler.
static Object	EventHandler.create(Class listenerInterface, Object target, String action) Creates an implementation of listenerInterface in which all of the methods in the listener interface apply the handler's action to the target.
static Object	EventHandler.create(Class listenerInterface, Object target, String action, String eventPropertyName) Creates an implementation of listenerInterface in which all of the methods pass the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.
static Object	EventHandler.create(Class listenerInterface, Object target, String action, String eventPropertyName, String listenerMethodName) Creates an implementation of listenerInterface in which the method named listenerMethodName passes the value of the event expression, eventPropertyName, to the final method in the statement, action, which is applied to the target.
void	XMLDecoder.setOwner(Object owner) Sets the owner of this decoder to owner.
void	XMLEncoder.setOwner(Object owner) Sets the owner of this encoder to owner.
void	XMLEncoder.writeObject(Object o) Write an XML representation of the specified object to the output.
protected boolean	DefaultPersistenceDelegate.mutatesTo(Object oldInstance, Object newInstance) If the number of arguments in the specified constructor is non-zero and the class of oldInstance explicitly declares an "equals" method this method returns the value of oldInstance.equals(newInstance).
protected Expression	DefaultPersistenceDelegate.instantiate(Object oldInstance, Encoder out) This default implementation of the instantiate method returns an expression containing the predefined method name "new" which denotes a call to a constructor with the arguments as specified in the DefaultPersistenceDelegate's constructor.
protected void	DefaultPersistenceDelegate.initialize(Class type, Object oldInstance, Object newInstance, Encoder out) This default implementation of the initialize method assumes all state held in objects of this type is exposed via the matching pairs of "setter" and "getter" methods in the order they are returned by the Introspector.
void	Expression.setValue(Object value) Sets the value of this expression to value.
protected void	Encoder.writeObject(Object o) Write the specified object to the output stream.
Object	Encoder.remove(Object oldInstance) Removes the entry for this instance, returning the old entry.
Object	Encoder.get(Object oldInstance) Returns a tentative value for oldInstance in the environment created by this stream.
void	PersistenceDelegate.writeObject(Object oldInstance, Encoder out) The writeObject is a single entry point to the persistence and is used by a Encoder in the traditional mode of delegation.
protected boolean	PersistenceDelegate.mutatesTo(Object oldInstance, Object newInstance) Returns true if an equivalent copy of oldInstance may be created by applying a series of statements to newInstance.
protected abstract Expression	PersistenceDelegate.instantiate(Object oldInstance, Encoder out) Returns an expression whose value is oldInstance.
protected void	PersistenceDelegate.initialize(Class type, Object oldInstance, Object newInstance, Encoder out) Produce a series of statements with side effects on newInstance so that the new instance becomes equivalent to oldInstance.
void	PropertyEditorSupport.setValue(Object value) Set (or change) the object that is to be edited.
static Object	Beans.getInstanceOf(Object bean, Class targetType) From a given bean, obtain an object representing a specified type view of that source object.
static boolean	Beans.isInstanceOf(Object bean, Class targetType) Check if a bean can be viewed as a given target type.
void	PropertyEditor.setValue(Object value) Set (or change) the object that is to be edited.
void	Customizer.setObject(Object bean) Set the object to be customized.
boolean	IndexedPropertyDescriptor.equals(Object obj) Compares this PropertyDescriptor against the specified object.
void	FeatureDescriptor.setValue(String attributeName, Object value) Associate a named attribute with this feature.
boolean	PropertyDescriptor.equals(Object obj) Compares this PropertyDescriptor against the specified object.
void	VetoableChangeSupport.fireVetoableChange(String propertyName, Object oldValue, Object newValue) Report a vetoable property update to any registered listeners.
void	PropertyChangeEvent.setPropagationId(Object propagationId) Sets the propagationId object for the event.
void	PropertyChangeSupport.firePropertyChange(String propertyName, Object oldValue, Object newValue) Report a bound property update to any registered listeners.

Constructors in java.beans with parameters of type Object

EventHandler(Object target, String action, String eventPropertyName, String listenerMethodName)
Creates a new EventHandler object; you generally use one of the create methods instead of invoking this constructor directly.

XMLDecoder(InputStream in, Object owner)
Creates a new input stream for reading archives created by the XMLEncoder class.

XMLDecoder(InputStream in, Object owner, ExceptionListener exceptionListener)
Creates a new input stream for reading archives created by the XMLEncoder class.

Statement(Object target, String methodName, Object[] arguments)
Creates a new Statement object with a target, methodName and arguments as per the parameters.

Expression(Object target, String methodName, Object[] arguments)
Creates a new Statement object with a target, methodName and arguments as per the parameters.

Expression(Object value, Object target, String methodName, Object[] arguments)
Creates a new Expression object for a method that returns a result.

PropertyEditorSupport(Object source)
Constructor for use when a PropertyEditor is delegating to us.

VetoableChangeSupport(Object sourceBean)
Constructs a VetoableChangeSupport object.

PropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue)
Constructs a new PropertyChangeEvent.

PropertyChangeSupport(Object sourceBean)
Constructs a PropertyChangeSupport object.

Uses of Object in java.beans.beancontext

Subclasses of Object in java.beans.beancontext

class	BeanContextChildSupport This is a general support class to provide support for implementing the BeanContextChild protocol.
class	BeanContextEvent BeanContextEvent is the abstract root event class for all events emitted from, and pertaining to the semantics of, a BeanContext.
class	BeanContextMembershipEvent A BeanContextMembershipEvent encapsulates the list of children added to, or removed from, the membership of a particular BeanContext.
class	BeanContextServiceAvailableEvent This event type is used by the BeanContextServicesListener in order to identify the service being registered.
class	BeanContextServiceRevokedEvent This event type is used by the BeanContextServiceRevokedListener in order to identify the service being revoked.
class	BeanContextServicesSupport This helper class provides a utility implementation of the java.beans.beancontext.BeanContextServices interface.
protected class	BeanContextServicesSupport.BCSSChild
protected class	BeanContextServicesSupport.BCSSProxyServiceProvider
protected static class	BeanContextServicesSupport.BCSSServiceProvider subclasses may subclass this nested class to add behaviors for each BeanContextServicesProvider.
class	BeanContextSupport This helper class provides a utility implementation of the java.beans.beancontext.BeanContext interface.
protected class	BeanContextSupport.BCSChild
protected static class	BeanContextSupport.BCSIterator protected final subclass that encapsulates an iterator but implements a noop remove() method.

Fields in java.beans.beancontext declared as Object

static Object

BeanContext.globalHierarchyLock This global lock is used by both BeanContext and BeanContextServices implementors to serialize changes in a BeanContext hierarchy and any service requests etc.

Methods in java.beans.beancontext that return Object

Object	BeanContextServicesSupport.BCSSProxyServiceProvider.getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector)
Object	BeanContextServicesSupport.getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) obtain a service which may be delegated
Object	BeanContextSupport.instantiateChild(String beanName) The instantiateChild method is a convenience hook in BeanContext to simplify the task of instantiating a Bean, nested, into a BeanContext.
Object[]	BeanContextSupport.toArray() Gets all JavaBean or BeanContext instances currently nested in this BeanContext.
Object[]	BeanContextSupport.toArray(Object[] arry) Gets an array containing all children of this BeanContext that match the types contained in arry.
protected Object[]	BeanContextSupport.copyChildren() Gets a copy of the this BeanContext's children.
Object	BeanContextSupport.BCSIterator.next()
Object	BeanContextServiceProvider.getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector) Invoked by BeanContextServices, this method requests an instance of a service from this BeanContextServiceProvider.
Object	BeanContextServices.getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) A BeanContextChild, or any arbitrary object associated with a BeanContextChild, may obtain a reference to a currently registered service from its nesting BeanContextServices via invocation of this method.
Object[]	BeanContextMembershipEvent.toArray() Gets the array of children affected by this event.
Object	BeanContext.instantiateChild(String beanName) Instantiate the javaBean named as a child of this BeanContext.

Methods in java.beans.beancontext with parameters of type Object

Object	BeanContextServicesSupport.BCSSProxyServiceProvider.getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector)
void	BeanContextServicesSupport.BCSSProxyServiceProvider.releaseService(BeanContextServices bcs, Object requestor, Object service)
protected BeanContextSupport.BCSChild	BeanContextServicesSupport.createBCSChild(Object targetChild, Object peer) Subclasses can override this method to insert their own subclass of Child without having to override add() or the other Collection methods that add children to the set.
Object	BeanContextServicesSupport.getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) obtain a service which may be delegated
void	BeanContextServicesSupport.releaseService(BeanContextChild child, Object requestor, Object service) release a service
protected static BeanContextServicesListener	BeanContextServicesSupport.getChildBeanContextServicesListener(Object child) Gets the BeanContextServicesListener (if any) of the specified child.
protected void	BeanContextServicesSupport.childJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc) called from superclass child removal operations after a child has been successfully removed.
boolean	BeanContextSupport.contains(Object o) Determines whether or not the specified object is currently a child of this BeanContext.
boolean	BeanContextSupport.containsKey(Object o) Determines whether or not the specified object is currently a child of this BeanContext.
Object[]	BeanContextSupport.toArray(Object[] arry) Gets an array containing all children of this BeanContext that match the types contained in arry.
protected BeanContextSupport.BCSChild	BeanContextSupport.createBCSChild(Object targetChild, Object peer) Subclasses can override this method to insert their own subclass of Child without having to override add() or the other Collection methods that add children to the set.
boolean	BeanContextSupport.add(Object targetChild) Adds/nests a child within this BeanContext.
boolean	BeanContextSupport.remove(Object targetChild) Removes a child from this BeanContext.
protected boolean	BeanContextSupport.remove(Object targetChild, boolean callChildSetBC) internal remove used when removal caused by unexpected setBeanContext or by remove() invocation.
protected void	BeanContextSupport.childDeserializedHook(Object child, BeanContextSupport.BCSChild bcsc) Called by readObject with the newly deserialized child and BCSChild.
protected boolean	BeanContextSupport.validatePendingAdd(Object targetChild) Subclasses of this class may override, or envelope, this method to add validation behavior for the BeanContext to examine child objects immediately prior to their being added to the BeanContext.
protected boolean	BeanContextSupport.validatePendingRemove(Object targetChild) Subclasses of this class may override, or envelope, this method to add validation behavior for the BeanContext to examine child objects immediately prior to their being removed from the BeanContext.
protected void	BeanContextSupport.childJustAddedHook(Object child, BeanContextSupport.BCSChild bcsc) subclasses may override this method to simply extend add() semantics after the child has been added and before the event notification has occurred.
protected void	BeanContextSupport.childJustRemovedHook(Object child, BeanContextSupport.BCSChild bcsc) subclasses may override this method to simply extend remove() semantics after the child has been removed and before the event notification has occurred.
protected static Visibility	BeanContextSupport.getChildVisibility(Object child) Gets the Component (if any) associated with the specified child.
protected static Serializable	BeanContextSupport.getChildSerializable(Object child) Gets the Serializable (if any) associated with the specified Child
protected static PropertyChangeListener	BeanContextSupport.getChildPropertyChangeListener(Object child) Gets the PropertyChangeListener (if any) of the specified child
protected static VetoableChangeListener	BeanContextSupport.getChildVetoableChangeListener(Object child) Gets the VetoableChangeListener (if any) of the specified child
protected static BeanContextMembershipListener	BeanContextSupport.getChildBeanContextMembershipListener(Object child) Gets the BeanContextMembershipListener (if any) of the specified child
protected static BeanContextChild	BeanContextSupport.getChildBeanContextChild(Object child) Gets the BeanContextChild (if any) of the specified child
void	BeanContextChildSupport.firePropertyChange(String name, Object oldValue, Object newValue) Report a bound property update to any registered listeners.
void	BeanContextChildSupport.fireVetoableChange(String name, Object oldValue, Object newValue) Report a vetoable property update to any registered listeners.
Object	BeanContextServiceProvider.getService(BeanContextServices bcs, Object requestor, Class serviceClass, Object serviceSelector) Invoked by BeanContextServices, this method requests an instance of a service from this BeanContextServiceProvider.
void	BeanContextServiceProvider.releaseService(BeanContextServices bcs, Object requestor, Object service) Invoked by BeanContextServices, this method releases a nested BeanContextChild's (or any arbitrary object associated with a BeanContextChild) reference to the specified service.
Object	BeanContextServices.getService(BeanContextChild child, Object requestor, Class serviceClass, Object serviceSelector, BeanContextServiceRevokedListener bcsrl) A BeanContextChild, or any arbitrary object associated with a BeanContextChild, may obtain a reference to a currently registered service from its nesting BeanContextServices via invocation of this method.
void	BeanContextServices.releaseService(BeanContextChild child, Object requestor, Object service) Releases a BeanContextChild's (or any arbitrary object associated with a BeanContextChild) reference to the specified service by calling releaseService() on the underlying BeanContextServiceProvider.
boolean	BeanContextMembershipEvent.contains(Object child) Is the child specified affected by the event?

Constructors in java.beans.beancontext with parameters of type Object

BeanContextMembershipEvent(BeanContext bc, Object[] changes)
Contruct a BeanContextMembershipEvent

Uses of Object in java.io

Subclasses of Object in java.io

class	BufferedInputStream A BufferedInputStream adds functionality to another input stream-namely, the ability to buffer the input and to support the mark and reset methods.
class	BufferedOutputStream The class implements a buffered output stream.
class	BufferedReader Read text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
class	BufferedWriter Write text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
class	ByteArrayInputStream A ByteArrayInputStream contains an internal buffer that contains bytes that may be read from the stream.
class	ByteArrayOutputStream This class implements an output stream in which the data is written into a byte array.
class	CharArrayReader This class implements a character buffer that can be used as a character-input stream.
class	CharArrayWriter This class implements a character buffer that can be used as an Writer.
class	CharConversionException Base class for character conversion exceptions.
class	DataInputStream A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
class	DataOutputStream A data output stream lets an application write primitive Java data types to an output stream in a portable way.
class	EOFException Signals that an end of file or end of stream has been reached unexpectedly during input.
class	File An abstract representation of file and directory pathnames.
class	FileDescriptor Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
class	FileInputStream A FileInputStream obtains input bytes from a file in a file system.
class	FileNotFoundException Signals that an attempt to open the file denoted by a specified pathname has failed.
class	FileOutputStream A file output stream is an output stream for writing data to a File or to a FileDescriptor.
class	FilePermission This class represents access to a file or directory.
class	FileReader Convenience class for reading character files.
class	FileWriter Convenience class for writing character files.
class	FilterInputStream A FilterInputStream contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
class	FilterOutputStream This class is the superclass of all classes that filter output streams.
class	FilterReader Abstract class for reading filtered character streams.
class	FilterWriter Abstract class for writing filtered character streams.
class	InputStream This abstract class is the superclass of all classes representing an input stream of bytes.
class	InputStreamReader An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified charset.
class	InterruptedIOException Signals that an I/O operation has been interrupted.
class	InvalidClassException Thrown when the Serialization runtime detects one of the following problems with a Class.
class	InvalidObjectException Indicates that one or more deserialized objects failed validation tests.
class	IOException Signals that an I/O exception of some sort has occurred.
class	LineNumberInputStream Deprecated. This class incorrectly assumes that bytes adequately represent characters. As of JDK 1.1, the preferred way to operate on character streams is via the new character-stream classes, which include a class for counting line numbers.
class	LineNumberReader A buffered character-input stream that keeps track of line numbers.
class	NotActiveException Thrown when serialization or deserialization is not active.
class	NotSerializableException Thrown when an instance is required to have a Serializable interface.
class	ObjectInputStream An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
static class	ObjectInputStream.GetField Provide access to the persistent fields read from the input stream.
class	ObjectOutputStream An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
static class	ObjectOutputStream.PutField Provide programatic access to the persistent fields to be written to ObjectOutput.
class	ObjectStreamClass Serialization's descriptor for classes.
class	ObjectStreamException Superclass of all exceptions specific to Object Stream classes.
class	ObjectStreamField A description of a Serializable field from a Serializable class.
class	OptionalDataException Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.
class	OutputStream This abstract class is the superclass of all classes representing an output stream of bytes.
class	OutputStreamWriter An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified charset.
class	PipedInputStream A piped input stream should be connected to a piped output stream; the piped input stream then provides whatever data bytes are written to the piped output stream.
class	PipedOutputStream A piped output stream can be connected to a piped input stream to create a communications pipe.
class	PipedReader Piped character-input streams.
class	PipedWriter Piped character-output streams.
class	PrintStream A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
class	PrintWriter Print formatted representations of objects to a text-output stream.
class	PushbackInputStream A PushbackInputStream adds functionality to another input stream, namely the ability to "push back" or "unread" one byte.
class	PushbackReader A character-stream reader that allows characters to be pushed back into the stream.
class	RandomAccessFile Instances of this class support both reading and writing to a random access file.
class	Reader Abstract class for reading character streams.
class	SequenceInputStream A SequenceInputStream represents the logical concatenation of other input streams.
class	SerializablePermission This class is for Serializable permissions.
class	StreamCorruptedException Thrown when control information that was read from an object stream violates internal consistency checks.
class	StreamTokenizer The StreamTokenizer class takes an input stream and parses it into "tokens", allowing the tokens to be read one at a time.
class	StringBufferInputStream Deprecated. This class does not properly convert characters into bytes. As of JDK 1.1, the preferred way to create a stream from a string is via the StringReader class.
class	StringReader A character stream whose source is a string.
class	StringWriter A character stream that collects its output in a string buffer, which can then be used to construct a string.
class	SyncFailedException Signals that a sync operation has failed.
class	UnsupportedEncodingException The Character Encoding is not supported.
class	UTFDataFormatException Signals that a malformed UTF-8 string has been read in a data input stream or by any class that implements the data input interface.
class	WriteAbortedException Signals that one of the ObjectStreamExceptions was thrown during a write operation.
class	Writer Abstract class for writing to character streams.

Fields in java.io declared as Object

protected Object	Reader.lock The object used to synchronize operations on this stream.
protected Object	Writer.lock The object used to synchronize operations on this stream.

Methods in java.io that return Object

Object	ObjectInput.readObject() Read and return an object.
Object	ObjectInputStream.readObject() Read an object from the ObjectInputStream.
protected Object	ObjectInputStream.readObjectOverride() This method is called by trusted subclasses of ObjectOutputStream that constructed ObjectOutputStream using the protected no-arg constructor.
Object	ObjectInputStream.readUnshared() Reads an "unshared" object from the ObjectInputStream.
protected Object	ObjectInputStream.resolveObject(Object obj) This method will allow trusted subclasses of ObjectInputStream to substitute one object for another during deserialization.
abstract Object	ObjectInputStream.GetField.get(String name, Object val) Get the value of the named Object field from the persistent field.
protected Object	ObjectOutputStream.replaceObject(Object obj) This method will allow trusted subclasses of ObjectOutputStream to substitute one object for another during serialization.

Methods in java.io with parameters of type Object

boolean	FilePermission.equals(Object obj) Checks two FilePermission objects for equality.
protected Object	ObjectInputStream.resolveObject(Object obj) This method will allow trusted subclasses of ObjectInputStream to substitute one object for another during deserialization.
abstract Object	ObjectInputStream.GetField.get(String name, Object val) Get the value of the named Object field from the persistent field.
int	File.compareTo(Object o) Compares this abstract pathname to another object.
boolean	File.equals(Object obj) Tests this abstract pathname for equality with the given object.
void	ObjectOutput.writeObject(Object obj) Write an object to the underlying storage or stream.
void	ObjectOutputStream.writeObject(Object obj) Write the specified object to the ObjectOutputStream.
protected void	ObjectOutputStream.writeObjectOverride(Object obj) Method used by subclasses to override the default writeObject method.
void	ObjectOutputStream.writeUnshared(Object obj) Writes an "unshared" object to the ObjectOutputStream.
protected Object	ObjectOutputStream.replaceObject(Object obj) This method will allow trusted subclasses of ObjectOutputStream to substitute one object for another during serialization.
abstract void	ObjectOutputStream.PutField.put(String name, Object val) Put the value of the named Object field into the persistent field.
void	PrintWriter.print(Object obj) Print an object.
void	PrintWriter.println(Object x) Print an Object and then terminate the line.
void	PrintStream.print(Object obj) Print an object.
void	PrintStream.println(Object x) Print an Object and then terminate the line.
int	ObjectStreamField.compareTo(Object obj) Compare this field with another ObjectStreamField.

Constructors in java.io with parameters of type Object

Reader(Object lock)
Create a new character-stream reader whose critical sections will synchronize on the given object.

Writer(Object lock)
Create a new character-stream writer whose critical sections will synchronize on the given object.

Uses of Object in java.lang

Subclasses of Object in java.lang

class	AbstractMethodError Thrown when an application tries to call an abstract method.
class	ArithmeticException Thrown when an exceptional arithmetic condition has occurred.
class	ArrayIndexOutOfBoundsException Thrown to indicate that an array has been accessed with an illegal index.
class	ArrayStoreException Thrown to indicate that an attempt has been made to store the wrong type of object into an array of objects.
class	AssertionError Thrown to indicate that an assertion has failed.
class	Boolean The Boolean class wraps a value of the primitive type boolean in an object.
class	Byte The Byte class wraps a value of primitive type byte in an object.
class	Character The Character class wraps a value of the primitive type char in an object.
static class	Character.Subset Instances of this class represent particular subsets of the Unicode character set.
static class	Character.UnicodeBlock A family of character subsets representing the character blocks in the Unicode specification.
class	Class Instances of the class Class represent classes and interfaces in a running Java application.
class	ClassCastException Thrown to indicate that the code has attempted to cast an object to a subclass of which it is not an instance.
class	ClassCircularityError Thrown when a circularity has been detected while initializing a class.
class	ClassFormatError Thrown when the Java Virtual Machine attempts to read a class file and determines that the file is malformed or otherwise cannot be interpreted as a class file.
class	ClassLoader A class loader is an object that is responsible for loading classes.
class	ClassNotFoundException Thrown when an application tries to load in a class through its string name using: The forName method in class Class.
class	CloneNotSupportedException Thrown to indicate that the clone method in class Object has been called to clone an object, but that the object's class does not implement the Cloneable interface.
class	Compiler The Compiler class is provided to support Java-to-native-code compilers and related services.
class	Double The Double class wraps a value of the primitive type double in an object.
class	Error An Error is a subclass of Throwable that indicates serious problems that a reasonable application should not try to catch.
class	Exception The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch.
class	ExceptionInInitializerError Signals that an unexpected exception has occurred in a static initializer.
class	Float The Float class wraps a value of primitive type float in an object.
class	IllegalAccessError Thrown if an application attempts to access or modify a field, or to call a method that it does not have access to.
class	IllegalAccessException An IllegalAccessException is thrown when an application tries to reflectively create an instance (other than an array), set or get a field, or invoke a method, but the currently executing method does not have access to the definition of the specified class, field, method or constructor.
class	IllegalArgumentException Thrown to indicate that a method has been passed an illegal or inappropriate argument.
class	IllegalMonitorStateException Thrown to indicate that a thread has attempted to wait on an object's monitor or to notify other threads waiting on an object's monitor without owning the specified monitor.
class	IllegalStateException Signals that a method has been invoked at an illegal or inappropriate time.
class	IllegalThreadStateException Thrown to indicate that a thread is not in an appropriate state for the requested operation.
class	IncompatibleClassChangeError Thrown when an incompatible class change has occurred to some class definition.
class	IndexOutOfBoundsException Thrown to indicate that an index of some sort (such as to an array, to a string, or to a vector) is out of range.
class	InheritableThreadLocal This class extends ThreadLocal to provide inheritance of values from parent thread to child thread: when a child thread is created, the child receives initial values for all inheritable thread-local variables for which the parent has values.
class	InstantiationError Thrown when an application tries to use the Java new construct to instantiate an abstract class or an interface.
class	InstantiationException Thrown when an application tries to create an instance of a class using the newInstance method in class Class, but the specified class object cannot be instantiated because it is an interface or is an abstract class.
class	Integer The Integer class wraps a value of the primitive type int in an object.
class	InternalError Thrown to indicate some unexpected internal error has occurred in the Java Virtual Machine.
class	InterruptedException Thrown when a thread is waiting, sleeping, or otherwise paused for a long time and another thread interrupts it using the interrupt method in class Thread.
class	LinkageError Subclasses of LinkageError indicate that a class has some dependency on another class; however, the latter class has incompatibly changed after the compilation of the former class.
class	Long The Long class wraps a value of the primitive type long in an object.
class	Math The class Math contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
class	NegativeArraySizeException Thrown if an application tries to create an array with negative size.
class	NoClassDefFoundError Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.
class	NoSuchFieldError Thrown if an application tries to access or modify a specified field of an object, and that object no longer has that field.
class	NoSuchFieldException Signals that the class doesn't have a field of a specified name.
class	NoSuchMethodError Thrown if an application tries to call a specified method of a class (either static or instance), and that class no longer has a definition of that method.
class	NoSuchMethodException Thrown when a particular method cannot be found.
class	NullPointerException Thrown when an application attempts to use null in a case where an object is required.
class	Number The abstract class Number is the superclass of classes BigDecimal, BigInteger, Byte, Double, Float, Integer, Long, and Short.
class	NumberFormatException Thrown to indicate that the application has attempted to convert a string to one of the numeric types, but that the string does not have the appropriate format.
class	OutOfMemoryError Thrown when the Java Virtual Machine cannot allocate an object because it is out of memory, and no more memory could be made available by the garbage collector.
class	Package Package objects contain version information about the implementation and specification of a Java package.
class	Process The Runtime.exec methods create a native process and return an instance of a subclass of Process that can be used to control the process and obtain information about it.
class	Runtime Every Java application has a single instance of class Runtime that allows the application to interface with the environment in which the application is running.
class	RuntimeException RuntimeException is the superclass of those exceptions that can be thrown during the normal operation of the Java Virtual Machine.
class	RuntimePermission This class is for runtime permissions.
class	SecurityException Thrown by the security manager to indicate a security violation.
class	SecurityManager The security manager is a class that allows applications to implement a security policy.
class	Short The Short class wraps a value of primitive type short in an object.
class	StackOverflowError Thrown when a stack overflow occurs because an application recurses too deeply.
class	StackTraceElement An element in a stack trace, as returned by Throwable.getStackTrace().
class	StrictMath The class StrictMath contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
class	String The String class represents character strings.
class	StringBuffer A string buffer implements a mutable sequence of characters.
class	StringIndexOutOfBoundsException Thrown by String methods to indicate that an index is either negative or greater than the size of the string.
class	System The System class contains several useful class fields and methods.
class	Thread A thread is a thread of execution in a program.
class	ThreadDeath An instance of ThreadDeath is thrown in the victim thread when the stop method with zero arguments in class Thread is called.
class	ThreadGroup A thread group represents a set of threads.
class	ThreadLocal This class provides thread-local variables.
class	Throwable The Throwable class is the superclass of all errors and exceptions in the Java language.
class	UnknownError Thrown when an unknown but serious exception has occurred in the Java Virtual Machine.
class	UnsatisfiedLinkError Thrown if the Java Virtual Machine cannot find an appropriate native-language definition of a method declared native.
class	UnsupportedClassVersionError Thrown when the Java Virtual Machine attempts to read a class file and determines that the major and minor version numbers in the file are not supported.
class	UnsupportedOperationException Thrown to indicate that the requested operation is not supported.
class	VerifyError Thrown when the "verifier" detects that a class file, though well formed, contains some sort of internal inconsistency or security problem.
class	VirtualMachineError Thrown to indicate that the Java Virtual Machine is broken or has run out of resources necessary for it to continue operating.
class	Void The Void class is an uninstantiable placeholder class to hold a reference to the Class object representing the Java keyword void.

Methods in java.lang that return Object

static Object	Compiler.command(Object any) Examines the argument type and its fields and perform some documented operation.
protected Object	InheritableThreadLocal.childValue(Object parentValue) Computes the child's initial value for this inheritable thread-local variable as a function of the parent's value at the time the child thread is created.
protected Object	ThreadLocal.initialValue() Returns the current thread's initial value for this thread-local variable.
Object	ThreadLocal.get() Returns the value in the current thread's copy of this thread-local variable.
Object	SecurityManager.getSecurityContext() Creates an object that encapsulates the current execution environment.
Object	Class.newInstance() Creates a new instance of the class represented by this Class object.
Object[]	Class.getSigners() Gets the signers of this class.
protected Object	Object.clone() Creates and returns a copy of this object.

Methods in java.lang with parameters of type Object

boolean	Character.equals(Object obj) Compares this object against the specified object.
int	Character.compareTo(Object o) Compares this Character object to another object.
boolean	Character.Subset.equals(Object obj) Compares two Subset objects for equality.
static Object	Compiler.command(Object any) Examines the argument type and its fields and perform some documented operation.
static void	System.arraycopy(Object src, int srcPos, Object dest, int destPos, int length) Copies an array from the specified source array, beginning at the specified position, to the specified position of the destination array.
static int	System.identityHashCode(Object x) Returns the same hash code for the given object as would be returned by the default method hashCode(), whether or not the given object's class overrides hashCode().
boolean	Boolean.equals(Object obj) Returns true if and only if the argument is not null and is a Boolean object that represents the same boolean value as this object.
boolean	Double.equals(Object obj) Compares this object against the specified object.
int	Double.compareTo(Object o) Compares this Double object to another object.
boolean	Float.equals(Object obj) Compares this object against the specified object.
int	Float.compareTo(Object o) Compares this Float object to another object.
boolean	Short.equals(Object obj) Compares this object to the specified object.
int	Short.compareTo(Object o) Compares this Short object to another object.
boolean	Byte.equals(Object obj) Compares this object to the specified object.
int	Byte.compareTo(Object o) Compares this Byte object to another object.
protected Object	InheritableThreadLocal.childValue(Object parentValue) Computes the child's initial value for this inheritable thread-local variable as a function of the parent's value at the time the child thread is created.
void	ThreadLocal.set(Object value) Sets the current thread's copy of this thread-local variable to the specified value.
boolean	Long.equals(Object obj) Compares this object to the specified object.
int	Long.compareTo(Object o) Compares this Long object to another object.
boolean	Integer.equals(Object obj) Compares this object to the specified object.
int	Integer.compareTo(Object o) Compares this Integer object to another object.
static boolean	Thread.holdsLock(Object obj) Returns true if and only if the current thread holds the monitor lock on the specified object.
void	SecurityManager.checkPermission(Permission perm, Object context) Throws a SecurityException if the specified security context is denied access to the resource specified by the given permission.
void	SecurityManager.checkRead(String file, Object context) Throws a SecurityException if the specified security context is not allowed to read the file specified by the string argument.
void	SecurityManager.checkConnect(String host, int port, Object context) Throws a SecurityException if the specified security context is not allowed to open a socket connection to the specified host and port number.
boolean	SecurityManager.checkTopLevelWindow(Object window) Returns false if the calling thread is not trusted to bring up the top-level window indicated by the window argument.
boolean	StackTraceElement.equals(Object obj) Returns true if the specified object is another StackTraceElement instance representing the same execution point as this instance.
StringBuffer	StringBuffer.append(Object obj) Appends the string representation of the Object argument to this string buffer.
StringBuffer	StringBuffer.insert(int offset, Object obj) Inserts the string representation of the Object argument into this string buffer.
protected void	ClassLoader.setSigners(Class c, Object[] signers) Sets the signers of a class.
int	Comparable.compareTo(Object o) Compares this object with the specified object for order.
boolean	String.equals(Object anObject) Compares this string to the specified object.
int	String.compareTo(Object o) Compares this String to another Object.
static String	String.valueOf(Object obj) Returns the string representation of the Object argument.
boolean	Class.isInstance(Object obj) Determines if the specified Object is assignment-compatible with the object represented by this Class.
boolean	Object.equals(Object obj) Indicates whether some other object is "equal to" this one.

Constructors in java.lang with parameters of type Object

AssertionError(Object detailMessage)
Constructs an AssertionError with its detail message derived from the specified object, which is converted to a string as defined in The Java Language Specification, Second Edition, Section 15.18.1.1.

Uses of Object in java.lang.ref

Subclasses of Object in java.lang.ref

class	PhantomReference Phantom reference objects, which are enqueued after the collector determines that their referents may otherwise be reclaimed.
class	Reference Abstract base class for reference objects.
class	ReferenceQueue Reference queues, to which registered reference objects are appended by the garbage collector after the appropriate reachability changes are detected.
class	SoftReference Soft reference objects, which are cleared at the discretion of the garbage collector in response to memory demand.
class	WeakReference Weak reference objects, which do not prevent their referents from being made finalizable, finalized, and then reclaimed.

Methods in java.lang.ref that return Object

Object	PhantomReference.get() Returns this reference object's referent.
Object	Reference.get() Returns this reference object's referent.
Object	SoftReference.get() Returns this reference object's referent.

Constructors in java.lang.ref with parameters of type Object

PhantomReference(Object referent, ReferenceQueue q)
Creates a new phantom reference that refers to the given object and is registered with the given queue.

WeakReference(Object referent)
Creates a new weak reference that refers to the given object.

WeakReference(Object referent, ReferenceQueue q)
Creates a new weak reference that refers to the given object and is registered with the given queue.

SoftReference(Object referent)
Creates a new soft reference that refers to the given object.

SoftReference(Object referent, ReferenceQueue q)
Creates a new soft reference that refers to the given object and is registered with the given queue.

Uses of Object in java.lang.reflect

Subclasses of Object in java.lang.reflect

class	AccessibleObject The AccessibleObject class is the base class for Field, Method and Constructor objects.
class	Array The Array class provides static methods to dynamically create and access Java arrays.
class	Constructor Constructor provides information about, and access to, a single constructor for a class.
class	Field A Field provides information about, and dynamic access to, a single field of a class or an interface.
class	InvocationTargetException InvocationTargetException is a checked exception that wraps an exception thrown by an invoked method or constructor.
class	Method A Method provides information about, and access to, a single method on a class or interface.
class	Modifier The Modifier class provides static methods and constants to decode class and member access modifiers.
class	Proxy Proxy provides static methods for creating dynamic proxy classes and instances, and it is also the superclass of all dynamic proxy classes created by those methods.
class	ReflectPermission The Permission class for reflective operations.
class	UndeclaredThrowableException Thrown by a method invocation on a proxy instance if its invocation handler's invoke method throws a checked exception (a Throwable that is not assignable to RuntimeException or Error) that is not assignable to any of the exception types declared in the throws clause of the method that was invoked on the proxy instance and dispatched to the invocation handler.

Methods in java.lang.reflect that return Object

Object	InvocationHandler.invoke(Object proxy, Method method, Object[] args) Processes a method invocation on a proxy instance and returns the result.
static Object	Proxy.newProxyInstance(ClassLoader loader, Class[] interfaces, InvocationHandler h) Returns an instance of a proxy class for the specified interfaces that dispatches method invocations to the specified invocation handler.
static Object	Array.newInstance(Class componentType, int length) Creates a new array with the specified component type and length.
static Object	Array.newInstance(Class componentType, int[] dimensions) Creates a new array with the specified component type and dimensions.
static Object	Array.get(Object array, int index) Returns the value of the indexed component in the specified array object.
Object	Method.invoke(Object obj, Object[] args) Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
Object	Field.get(Object obj) Returns the value of the field represented by this Field, on the specified object.
Object	Constructor.newInstance(Object[] initargs) Uses the constructor represented by this Constructor object to create and initialize a new instance of the constructor's declaring class, with the specified initialization parameters.

Methods in java.lang.reflect with parameters of type Object

Object	InvocationHandler.invoke(Object proxy, Method method, Object[] args) Processes a method invocation on a proxy instance and returns the result.
static InvocationHandler	Proxy.getInvocationHandler(Object proxy) Returns the invocation handler for the specified proxy instance.
static int	Array.getLength(Object array) Returns the length of the specified array object, as an int.
static Object	Array.get(Object array, int index) Returns the value of the indexed component in the specified array object.
static boolean	Array.getBoolean(Object array, int index) Returns the value of the indexed component in the specified array object, as a boolean.
static byte	Array.getByte(Object array, int index) Returns the value of the indexed component in the specified array object, as a byte.
static char	Array.getChar(Object array, int index) Returns the value of the indexed component in the specified array object, as a char.
static short	Array.getShort(Object array, int index) Returns the value of the indexed component in the specified array object, as a short.
static int	Array.getInt(Object array, int index) Returns the value of the indexed component in the specified array object, as an int.
static long	Array.getLong(Object array, int index) Returns the value of the indexed component in the specified array object, as a long.
static float	Array.getFloat(Object array, int index) Returns the value of the indexed component in the specified array object, as a float.
static double	Array.getDouble(Object array, int index) Returns the value of the indexed component in the specified array object, as a double.
static void	Array.set(Object array, int index, Object value) Sets the value of the indexed component of the specified array object to the specified new value.
static void	Array.setBoolean(Object array, int index, boolean z) Sets the value of the indexed component of the specified array object to the specified boolean value.
static void	Array.setByte(Object array, int index, byte b) Sets the value of the indexed component of the specified array object to the specified byte value.
static void	Array.setChar(Object array, int index, char c) Sets the value of the indexed component of the specified array object to the specified char value.
static void	Array.setShort(Object array, int index, short s) Sets the value of the indexed component of the specified array object to the specified short value.
static void	Array.setInt(Object array, int index, int i) Sets the value of the indexed component of the specified array object to the specified int value.
static void	Array.setLong(Object array, int index, long l) Sets the value of the indexed component of the specified array object to the specified long value.
static void	Array.setFloat(Object array, int index, float f) Sets the value of the indexed component of the specified array object to the specified float value.
static void	Array.setDouble(Object array, int index, double d) Sets the value of the indexed component of the specified array object to the specified double value.
boolean	Method.equals(Object obj) Compares this Method against the specified object.
Object	Method.invoke(Object obj, Object[] args) Invokes the underlying method represented by this Method object, on the specified object with the specified parameters.
boolean	Field.equals(Object obj) Compares this Field against the specified object.
Object	Field.get(Object obj) Returns the value of the field represented by this Field, on the specified object.
boolean	Field.getBoolean(Object obj) Gets the value of a static or instance boolean field.
byte	Field.getByte(Object obj) Gets the value of a static or instance byte field.
char	Field.getChar(Object obj) Gets the value of a static or instance field of type char or of another primitive type convertible to type char via a widening conversion.
short	Field.getShort(Object obj) Gets the value of a static or instance field of type short or of another primitive type convertible to type short via a widening conversion.
int	Field.getInt(Object obj) Gets the value of a static or instance field of type int or of another primitive type convertible to type int via a widening conversion.
long	Field.getLong(Object obj) Gets the value of a static or instance field of type long or of another primitive type convertible to type long via a widening conversion.
float	Field.getFloat(Object obj) Gets the value of a static or instance field of type float or of another primitive type convertible to type float via a widening conversion.
double	Field.getDouble(Object obj) Gets the value of a static or instance field of type double or of another primitive type convertible to type double via a widening conversion.
void	Field.set(Object obj, Object value) Sets the field represented by this Field object on the specified object argument to the specified new value.
void	Field.setBoolean(Object obj, boolean z) Sets the value of a field as a boolean on the specified object.
void	Field.setByte(Object obj, byte b) Sets the value of a field as a byte on the specified object.
void	Field.setChar(Object obj, char c) Sets the value of a field as a char on the specified object.
void	Field.setShort(Object obj, short s) Sets the value of a field as a short on the specified object.
void	Field.setInt(Object obj, int i) Sets the value of a field as an int on the specified object.
void	Field.setLong(Object obj, long l) Sets the value of a field as a long on the specified object.
void	Field.setFloat(Object obj, float f) Sets the value of a field as a float on the specified object.
void	Field.setDouble(Object obj, double d) Sets the value of a field as a double on the specified object.
boolean	Constructor.equals(Object obj) Compares this Constructor against the specified object.
Object	Constructor.newInstance(Object[] initargs) Uses the constructor represented by this Constructor object to create and initialize a new instance of the constructor's declaring class, with the specified initialization parameters.

Uses of Object in java.math

Subclasses of Object in java.math

class	BigDecimal Immutable, arbitrary-precision signed decimal numbers.
class	BigInteger Immutable arbitrary-precision integers.

Methods in java.math with parameters of type Object

int	BigDecimal.compareTo(Object o) Compares this BigDecimal with the specified Object.
boolean	BigDecimal.equals(Object x) Compares this BigDecimal with the specified Object for equality.
int	BigInteger.compareTo(Object o) Compares this BigInteger with the specified Object.
boolean	BigInteger.equals(Object x) Compares this BigInteger with the specified Object for equality.

Uses of Object in java.net

Subclasses of Object in java.net

class	Authenticator The class Authenticator represents an object that knows how to obtain authentication for a network connection.
class	BindException Signals that an error occurred while attempting to bind a socket to a local address and port.
class	ContentHandler The abstract class ContentHandler is the superclass of all classes that read an Object from a URLConnection.
class	DatagramPacket This class represents a datagram packet.
class	DatagramSocket This class represents a socket for sending and receiving datagram packets.
class	DatagramSocketImpl Abstract datagram and multicast socket implementation base class.
class	HttpURLConnection A URLConnection with support for HTTP-specific features.
class	Inet4Address This class represents an Internet Protocol version 4 (IPv4) address.
class	Inet6Address This class represents an Internet Protocol version 6 (IPv6) address.
class	InetAddress This class represents an Internet Protocol (IP) address.
class	InetSocketAddress This class implements an IP Socket Address (IP address + port number) It can also be a pair (hostname + port number), in which case an attempt will be made to resolve the hostname.
class	JarURLConnection A URL Connection to a Java ARchive (JAR) file or an entry in a JAR file.
class	MalformedURLException Thrown to indicate that a malformed URL has occurred.
class	MulticastSocket The multicast datagram socket class is useful for sending and receiving IP multicast packets.
class	NetPermission This class is for various network permissions.
class	NetworkInterface This class represents a Network Interface made up of a name, and a list of IP addresses assigned to this interface.
class	NoRouteToHostException Signals that an error occurred while attempting to connect a socket to a remote address and port.
class	PasswordAuthentication The class PasswordAuthentication is a data holder that is used by Authenticator.
class	PortUnreachableException Signals that an ICMP Port Unreachable message has been received on a connected datagram.
class	ProtocolException Thrown to indicate that there is an error in the underlying protocol, such as a TCP error.
class	ServerSocket This class implements server sockets.
class	Socket This class implements client sockets (also called just "sockets").
class	SocketAddress This class represents a Socket Address with no protocol attachment.
class	SocketException Thrown to indicate that there is an error in the underlying protocol, such as a TCP error.
class	SocketImpl The abstract class SocketImpl is a common superclass of all classes that actually implement sockets.
class	SocketPermission This class represents access to a network via sockets.
class	SocketTimeoutException Signals that a timeout has occurred on a socket read or accept.
class	UnknownHostException Thrown to indicate that the IP address of a host could not be determined.
class	UnknownServiceException Thrown to indicate that an unknown service exception has occurred.
class	URI Represents a Uniform Resource Identifier (URI) reference.
class	URISyntaxException Checked exception thrown to indicate that a string could not be parsed as a URI reference.
class	URL Class URL represents a Uniform Resource Locator, a pointer to a "resource" on the World Wide Web.
class	URLClassLoader This class loader is used to load classes and resources from a search path of URLs referring to both JAR files and directories.
class	URLConnection The abstract class URLConnection is the superclass of all classes that represent a communications link between the application and a URL.
class	URLDecoder Utility class for HTML form decoding.
class	URLEncoder Utility class for HTML form encoding.
class	URLStreamHandler The abstract class URLStreamHandler is the common superclass for all stream protocol handlers.

Methods in java.net that return Object

Object	SocketOptions.getOption(int optID) Fetch the value of an option.
abstract Object	ContentHandler.getContent(URLConnection urlc) Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object from it.
Object	ContentHandler.getContent(URLConnection urlc, Class[] classes) Given a URL connect stream positioned at the beginning of the representation of an object, this method reads that stream and creates an object that matches one of the types specified.
Object	URLConnection.getContent() Retrieves the contents of this URL connection.
Object	URLConnection.getContent(Class[] classes) Retrieves the contents of this URL connection.
Object	URL.getContent() Gets the contents of this URL.
Object	URL.getContent(Class[] classes) Gets the contents of this URL.

Methods in java.net with parameters of type Object

boolean	InetSocketAddress.equals(Object obj) Compares this object against the specified object.
boolean	NetworkInterface.equals(Object obj) Compares this object against the specified object.
void	SocketOptions.setOption(int optID, Object value) Enable/disable the option specified by optID.
boolean	Inet6Address.equals(Object obj) Compares this object against the specified object.
boolean	Inet4Address.equals(Object obj) Compares this object against the specified object.
boolean	URI.equals(Object ob) Tests this URI for equality with another object.
int	URI.compareTo(Object ob) Compares this URI to another object, which must be a URI.
boolean	SocketPermission.equals(Object obj) Checks two SocketPermission objects for equality.
boolean	InetAddress.equals(Object obj) Compares this object against the specified object.
boolean	URL.equals(Object obj) Compares this URL for equality with another object.

Uses of Object in java.nio

Subclasses of Object in java.nio

class	Buffer A container for data of a specific primitive type.
class	BufferOverflowException Unchecked exception thrown when a relative put operation reaches the target buffer's limit.
class	BufferUnderflowException Unchecked exception thrown when a relative get operation reaches the source buffer's limit.
class	ByteBuffer A byte buffer.
class	ByteOrder A typesafe enumeration for byte orders.
class	CharBuffer A character buffer.
class	DoubleBuffer A double buffer.
class	FloatBuffer A float buffer.
class	IntBuffer An int buffer.
class	InvalidMarkException Unchecked exception thrown when an attempt is made to reset a buffer when its mark is not defined.
class	LongBuffer A long buffer.
class	MappedByteBuffer A direct byte buffer whose content is a memory-mapped region of a file.
class	ReadOnlyBufferException Unchecked exception thrown when a content-mutation method such as put or compact is invoked upon a read-only buffer.
class	ShortBuffer A short buffer.

Methods in java.nio with parameters of type Object

boolean	DoubleBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
int	DoubleBuffer.compareTo(Object ob) Compares this buffer to another object.
boolean	FloatBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
int	FloatBuffer.compareTo(Object ob) Compares this buffer to another object.
boolean	LongBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
int	LongBuffer.compareTo(Object ob) Compares this buffer to another object.
boolean	IntBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
int	IntBuffer.compareTo(Object ob) Compares this buffer to another object.
boolean	ShortBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
int	ShortBuffer.compareTo(Object ob) Compares this buffer to another object.
boolean	CharBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
int	CharBuffer.compareTo(Object ob) Compares this buffer to another object.
boolean	ByteBuffer.equals(Object ob) Tells whether or not this buffer is equal to another object.
int	ByteBuffer.compareTo(Object ob) Compares this buffer to another object.

Uses of Object in java.nio.channels

Subclasses of Object in java.nio.channels

class	AlreadyConnectedException Unchecked exception thrown when an attempt is made to connect a SocketChannel that is already connected.
class	AsynchronousCloseException Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.
class	CancelledKeyException Unchecked exception thrown when an attempt is made to use a selection key that is no longer valid.
class	Channels Utility methods for channels and streams.
class	ClosedByInterruptException Checked exception received by a thread when another thread interrupts it while it is blocked in an I/O operation upon a channel.
class	ClosedChannelException Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.
class	ClosedSelectorException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a closed selector.
class	ConnectionPendingException Unchecked exception thrown when an attempt is made to connect a SocketChannel for which a non-blocking connection operation is already in progress.
class	DatagramChannel A selectable channel for datagram-oriented sockets.
class	FileChannel A channel for reading, writing, mapping, and manipulating a file.
static class	FileChannel.MapMode A typesafe enumeration for file-mapping modes.
class	FileLock A token representing a lock on a region of a file.
class	FileLockInterruptionException Checked exception received by a thread when another thread interrupts it while it is waiting to acquire a file lock.
class	IllegalBlockingModeException Unchecked exception thrown when a blocking-mode-specific operation is invoked upon a channel in the incorrect blocking mode.
class	IllegalSelectorException Unchecked exception thrown when an attempt is made to register a channel with a selector that was not created by the provider that created the channel.
class	NoConnectionPendingException Unchecked exception thrown when the finishConnect method of a SocketChannel is invoked without first successfully invoking its connect method.
class	NonReadableChannelException Unchecked exception thrown when an attempt is made to read from a channel that was not originally opened for reading.
class	NonWritableChannelException Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing.
class	NotYetBoundException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a server socket channel that is not yet bound.
class	NotYetConnectedException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a socket channel that is not yet connected.
class	OverlappingFileLockException Unchecked exception thrown when an attempt is made to acquire a lock on a region of a file that overlaps a region already locked by the same Java virtual machine, or when another thread is already waiting to lock an overlapping region of the same file.
class	Pipe A pair of channels that implements a unidirectional pipe.
static class	Pipe.SinkChannel A channel representing the writable end of a Pipe.
static class	Pipe.SourceChannel A channel representing the readable end of a Pipe.
class	SelectableChannel A channel that can be multiplexed via a Selector.
class	SelectionKey A token representing the registration of a SelectableChannel with a Selector.
class	Selector A multiplexor of SelectableChannel objects.
class	ServerSocketChannel A selectable channel for stream-oriented listening sockets.
class	SocketChannel A selectable channel for stream-oriented connecting sockets.
class	UnresolvedAddressException Unchecked exception thrown when an attempt is made to invoke a network operation upon an unresolved socket address.
class	UnsupportedAddressTypeException Unchecked exception thrown when an attempt is made to bind or connect to a socket address of a type that is not supported.

Methods in java.nio.channels that return Object

Object	SelectionKey.attach(Object ob) Attaches the given object to this key.
Object	SelectionKey.attachment() Retrieves the current attachment.
abstract Object	SelectableChannel.blockingLock() Retrieves the object upon which the configureBlocking and register methods synchronize.

Methods in java.nio.channels with parameters of type Object

Object	SelectionKey.attach(Object ob) Attaches the given object to this key.
abstract SelectionKey	SelectableChannel.register(Selector sel, int ops, Object att) Registers this channel with the given selector, returning a selection key.

Uses of Object in java.nio.channels.spi

Subclasses of Object in java.nio.channels.spi

class	AbstractInterruptibleChannel Base implementation class for interruptible channels.
class	AbstractSelectableChannel Base implementation class for selectable channels.
class	AbstractSelectionKey Base implementation class for selection keys.
class	AbstractSelector Base implementation class for selectors.
class	SelectorProvider Service-provider class for selectors and selectable channels.

Methods in java.nio.channels.spi that return Object

Object

AbstractSelectableChannel.blockingLock()

Methods in java.nio.channels.spi with parameters of type Object

protected abstract SelectionKey	AbstractSelector.register(AbstractSelectableChannel ch, int ops, Object att) Registers the given channel with this selector.
SelectionKey	AbstractSelectableChannel.register(Selector sel, int ops, Object att) Registers this channel with the given selector, returning a selection key.

Uses of Object in java.nio.charset

Subclasses of Object in java.nio.charset

class	CharacterCodingException Checked exception thrown when a character encoding or decoding error occurs.
class	Charset A named mapping between sequences of sixteen-bit Unicode characters and sequences of bytes.
class	CharsetDecoder An engine that can transform a sequence of bytes in a specific charset into a sequence of sixteen-bit Unicode characters.
class	CharsetEncoder An engine that can transform a sequence of sixteen-bit Unicode characters into a sequence of bytes in a specific charset.
class	CoderMalfunctionError Error thrown when the decodeLoop method of a CharsetDecoder, or the encodeLoop method of a CharsetEncoder, throws an unexpected exception.
class	CoderResult A description of the result state of a coder.
class	CodingErrorAction A typesafe enumeration for coding-error actions.
class	IllegalCharsetNameException Unchecked exception thrown when a string that is not a legal charset name is used as such.
class	MalformedInputException Checked exception thrown when an input byte sequence is not legal for given charset, or an input character sequence is not a legal sixteen-bit Unicode sequence.
class	UnmappableCharacterException Checked exception thrown when an input character (or byte) sequence is valid but cannot be mapped to an output byte (or character) sequence.
class	UnsupportedCharsetException Unchecked exception thrown when no support is available for a requested charset.

Methods in java.nio.charset with parameters of type Object

int	Charset.compareTo(Object ob) Compares this charset to another object.
boolean	Charset.equals(Object ob) Tells whether or not this object is equal to another.

Uses of Object in java.nio.charset.spi

Subclasses of Object in java.nio.charset.spi

class

CharsetProvider Charset service-provider class.

Uses of Object in java.rmi

Subclasses of Object in java.rmi

class	AccessException An AccessException is thrown by certain methods of the java.rmi.Naming class (specifically bind, rebind, and unbind) and methods of the java.rmi.activation.ActivationSystem interface to indicate that the caller does not have permission to perform the action requested by the method call.
class	AlreadyBoundException An AlreadyBoundException is thrown if an attempt is made to bind an object in the registry to a name that already has an associated binding.
class	ConnectException A ConnectException is thrown if a connection is refused to the remote host for a remote method call.
class	ConnectIOException A ConnectIOException is thrown if an IOException occurs while making a connection to the remote host for a remote method call.
class	MarshalException A MarshalException is thrown if a java.io.IOException occurs while marshalling the remote call header, arguments or return value for a remote method call.
class	MarshalledObject A MarshalledObject contains a byte stream with the serialized representation of an object given to its constructor.
class	Naming The Naming class provides methods for storing and obtaining references to remote objects in a remote object registry.
class	NoSuchObjectException A NoSuchObjectException is thrown if an attempt is made to invoke a method on an object that no longer exists in the remote virtual machine.
class	NotBoundException A NotBoundException is thrown if an attempt is made to lookup or unbind in the registry a name that has no associated binding.
class	RemoteException A RemoteException is the common superclass for a number of communication-related exceptions that may occur during the execution of a remote method call.
class	RMISecurityException Deprecated. Use SecurityException instead. Application code should never directly reference this class, and RMISecurityManager no longer throws this subclass of java.lang.SecurityException.
class	RMISecurityManager RMISecurityManager provides an example security manager for use by RMI applications that use downloaded code.
class	ServerError A ServerError is thrown as a result of a remote method invocation when an Error is thrown while processing the invocation on the server, either while unmarshalling the arguments, executing the remote method itself, or marshalling the return value.
class	ServerException A ServerException is thrown as a result of a remote method invocation when a RemoteException is thrown while processing the invocation on the server, either while unmarshalling the arguments, executing the remote method itself, or marshalling the return value.
class	ServerRuntimeException Deprecated. no replacement
class	StubNotFoundException A StubNotFoundException is thrown if a valid stub class could not be found for a remote object when it is exported.
class	UnexpectedException An UnexpectedException is thrown if the client of a remote method call receives, as a result of the call, a checked exception that is not among the checked exception types declared in the throws clause of the method in the remote interface.
class	UnmarshalException An UnmarshalException can be thrown while unmarshalling the parameters or results of a remote method call if any of the following conditions occur: if an exception occurs while unmarshalling the call header if the protocol for the return value is invalid if a java.io.IOException occurs unmarshalling parameters (on the server side) or the return value (on the client side).

Methods in java.rmi that return Object

Object

MarshalledObject.get() Returns a new copy of the contained marshalledobject.

Methods in java.rmi with parameters of type Object

boolean

MarshalledObject.equals(Object obj) Compares this MarshalledObject to another object.

Constructors in java.rmi with parameters of type Object

MarshalledObject(Object obj)
Creates a new MarshalledObject that contains the serialized representation of the current state of the supplied object.

Uses of Object in java.rmi.activation

Subclasses of Object in java.rmi.activation

class	Activatable The Activatable class provides support for remote objects that require persistent access over time and that can be activated by the system.
class	ActivateFailedException This exception is thrown by the RMI runtime when activation fails during a remote call to an activatable object.
class	ActivationDesc An activation descriptor contains the information necessary to activate an object: the object's group identifier, the object's fully-qualified class name, the object's code location (the location of the class), a codebase URL path, the object's restart "mode", and, a "marshalled" object that can contain object specific initialization data.
class	ActivationException General exception used by the activation interfaces.
class	ActivationGroup An ActivationGroup is responsible for creating new instances of "activatable" objects in its group, informing its ActivationMonitor when either: its object's become active or inactive, or the group as a whole becomes inactive.
class	ActivationGroup_Stub ActivationGroup_Stub is a stub class for the subclasses of java.rmi.activation.ActivationGroup that are exported as a java.rmi.server.UnicastRemoteObject.
class	ActivationGroupDesc An activation group descriptor contains the information necessary to create/recreate an activation group in which to activate objects.
static class	ActivationGroupDesc.CommandEnvironment Startup options for ActivationGroup implementations.
class	ActivationGroupID The identifier for a registered activation group serves several purposes: identifies the group uniquely within the activation system, and contains a reference to the group's activation system so that the group can contact its activation system when necessary.
class	ActivationID Activation makes use of special identifiers to denote remote objects that can be activated over time.
class	UnknownGroupException An UnknownGroupException is thrown by methods of classes and interfaces in the java.rmi.activation package when the ActivationGroupID parameter to the method is determined to be invalid, i.e., not known by the ActivationSystem.
class	UnknownObjectException An UnknownObjectException is thrown by methods of classes and interfaces in the java.rmi.activation package when the ActivationID parameter to the method is determined to be invalid.

Methods in java.rmi.activation with parameters of type Object

boolean	ActivationGroupDesc.equals(Object obj) Compares two activation group descriptors for content equality.
boolean	ActivationGroupDesc.CommandEnvironment.equals(Object obj) Compares two command environments for content equality.
boolean	ActivationGroupID.equals(Object obj) Compares two group identifiers for content equality.
boolean	ActivationDesc.equals(Object obj) Compares two activation descriptors for content equality.
boolean	ActivationID.equals(Object obj) Compares two activation ids for content equality.

Uses of Object in java.rmi.dgc

Subclasses of Object in java.rmi.dgc

class	Lease A lease contains a unique VM identifier and a lease duration.
class	VMID A VMID is a identifier that is unique across all Java virtual machines.

Methods in java.rmi.dgc with parameters of type Object

boolean

VMID.equals(Object obj) Compare this VMID to another, and return true if they are the same identifier.

Uses of Object in java.rmi.registry

Subclasses of Object in java.rmi.registry

class

LocateRegistry LocateRegistry is used to obtain a reference to a bootstrap remote object registry on a particular host (including the local host), or to create a remote object registry that accepts calls on a specific port.

Uses of Object in java.rmi.server

Subclasses of Object in java.rmi.server

class	ExportException An ExportException is a RemoteException thrown if an attempt to export a remote object fails.
class	LogStream Deprecated. no replacement
class	ObjID An ObjID is used to identify a remote object exported to an RMI runtime.
class	Operation Deprecated. no replacement
class	RemoteObject The RemoteObject class implements the java.lang.Object behavior for remote objects.
class	RemoteServer The RemoteServer class is the common superclass to server implementations and provides the framework to support a wide range of remote reference semantics.
class	RemoteStub The RemoteStub class is the common superclass to client stubs and provides the framework to support a wide range of remote reference semantics.
class	RMIClassLoader RMIClassLoader comprises static methods to support dynamic class loading with RMI.
class	RMIClassLoaderSpi RMIClassLoaderSpi is the service provider interface for RMIClassLoader.
class	RMISocketFactory An RMISocketFactory instance is used by the RMI runtime in order to obtain client and server sockets for RMI calls.
class	ServerCloneException A ServerCloneException is thrown if a remote exception occurs during the cloning of a UnicastRemoteObject.
class	ServerNotActiveException An ServerNotActiveException is an Exception thrown during a call to RemoteServer.getClientHost if the getClientHost method is called outside of servicing a remote method call.
class	SkeletonMismatchException Deprecated. no replacement. Skeletons are no longer required for remote method calls in the Java 2 platform v1.2 and greater.
class	SkeletonNotFoundException Deprecated. no replacement. Skeletons are no longer required for remote method calls in the Java 2 platform v1.2 and greater.
class	SocketSecurityException A SocketSecurityException is thrown during remote object export if the code exporting the remote object (either by construction or by explicit call to the exportObject method of UnicastRemoteObject or java.rmi.activation.Activatable) does not have permission to create a java.net.ServerSocket on the port number specified during remote object export.
class	UID A UID represents an identifier that is unique over time with respect to the host it is generated on, or one of 216 "well-known" identifiers.
class	UnicastRemoteObject The UnicastRemoteObject class defines a non-replicated remote object whose references are valid only while the server process is alive.

Methods in java.rmi.server that return Object

Object	LoaderHandler.getSecurityContext(ClassLoader loader) Deprecated. no replacement
Object	UnicastRemoteObject.clone() Returns a clone of the remote object that is distinct from the original.
static Object	RMIClassLoader.getSecurityContext(ClassLoader loader) Deprecated. no replacement. As of the Java 2 platform v1.2, RMI no longer uses this method to obtain a class loader's security context.
Object	RemoteRef.invoke(Remote obj, Method method, Object[] params, long opnum) Invoke a method.

Methods in java.rmi.server with parameters of type Object

RemoteStub	ServerRef.exportObject(Remote obj, Object data) Creates a client stub object for the supplied Remote object.
boolean	UID.equals(Object obj) Compares the specified object with this UID for equality.
boolean	ObjID.equals(Object obj) Compares the specified object with this ObjID for equality.
Object	RemoteRef.invoke(Remote obj, Method method, Object[] params, long opnum) Invoke a method.
boolean	RemoteObject.equals(Object obj) Compares two remote objects for equality.

Uses of Object in java.security

Subclasses of Object in java.security

class	AccessControlContext An AccessControlContext is used to make system resource access decisions based on the context it encapsulates.
class	AccessControlException This exception is thrown by the AccessController to indicate that a requested access (to a critical system resource such as the file system or the network) is denied.
class	AccessController The AccessController class is used for access control operations and decisions.
class	AlgorithmParameterGenerator The AlgorithmParameterGenerator class is used to generate a set of parameters to be used with a certain algorithm.
class	AlgorithmParameterGeneratorSpi This class defines the Service Provider Interface (SPI) for the AlgorithmParameterGenerator class, which is used to generate a set of parameters to be used with a certain algorithm.
class	AlgorithmParameters This class is used as an opaque representation of cryptographic parameters.
class	AlgorithmParametersSpi This class defines the Service Provider Interface (SPI) for the AlgorithmParameters class, which is used to manage algorithm parameters.
class	AllPermission The AllPermission is a permission that implies all other permissions.
class	BasicPermission The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.
class	CodeSource This class extends the concept of a codebase to encapsulate not only the location (URL) but also the certificate(s) that were used to verify signed code originating from that location.
class	DigestException This is the generic Message Digest exception.
class	DigestInputStream A transparent stream that updates the associated message digest using the bits going through the stream.
class	DigestOutputStream A transparent stream that updates the associated message digest using the bits going through the stream.
class	GeneralSecurityException The GeneralSecurityException class is a generic security exception class that provides type safety for all the security-related exception classes that extend from it.
class	GuardedObject A GuardedObject is an object that is used to protect access to another object.
class	Identity Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	IdentityScope Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	InvalidAlgorithmParameterException This is the exception for invalid or inappropriate algorithm parameters.
class	InvalidKeyException This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc).
class	InvalidParameterException This exception, designed for use by the JCA/JCE engine classes, is thrown when an invalid parameter is passed to a method.
class	KeyException This is the basic key exception.
class	KeyFactory Key factories are used to convert keys (opaque cryptographic keys of type Key) into key specifications (transparent representations of the underlying key material), and vice versa.
class	KeyFactorySpi This class defines the Service Provider Interface (SPI) for the KeyFactory class.
class	KeyManagementException This is the general key management exception for all operations dealing with key management.
class	KeyPair This class is a simple holder for a key pair (a public key and a private key).
class	KeyPairGenerator The KeyPairGenerator class is used to generate pairs of public and private keys.
class	KeyPairGeneratorSpi This class defines the Service Provider Interface (SPI) for the KeyPairGenerator class, which is used to generate pairs of public and private keys.
class	KeyStore This class represents an in-memory collection of keys and certificates.
class	KeyStoreException This is the generic KeyStore exception.
class	KeyStoreSpi This class defines the Service Provider Interface (SPI) for the KeyStore class.
class	MessageDigest This MessageDigest class provides applications the functionality of a message digest algorithm, such as MD5 or SHA.
class	MessageDigestSpi This class defines the Service Provider Interface (SPI) for the MessageDigest class, which provides the functionality of a message digest algorithm, such as MD5 or SHA.
class	NoSuchAlgorithmException This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
class	NoSuchProviderException This exception is thrown when a particular security provider is requested but is not available in the environment.
class	Permission Abstract class for representing access to a system resource.
class	PermissionCollection Abstract class representing a collection of Permission objects.
class	Permissions This class represents a heterogeneous collection of Permissions.
class	Policy This is an abstract class for representing the system security policy for a Java application environment (specifying which permissions are available for code from various sources).
class	PrivilegedActionException This exception is thrown by doPrivileged(PrivilegedExceptionAction) and doPrivileged(PrivilegedExceptionAction, AccessControlContext context) to indicate that the action being performed threw a checked exception.
class	ProtectionDomain This ProtectionDomain class encapsulates the characteristics of a domain, which encloses a set of classes whose instances are granted a set of permissions when being executed on behalf of a given set of Principals.
class	Provider This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.
class	ProviderException A runtime exception for Provider exceptions (such as misconfiguration errors), which may be subclassed by Providers to throw specialized, provider-specific runtime errors.
class	SecureClassLoader This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.
class	SecureRandom This class provides a cryptographically strong pseudo-random number generator (PRNG).
class	SecureRandomSpi This class defines the Service Provider Interface (SPI) for the SecureRandom class.
class	Security This class centralizes all security properties and common security methods.
class	SecurityPermission This class is for security permissions.
class	Signature This Signature class is used to provide applications the functionality of a digital signature algorithm.
class	SignatureException This is the generic Signature exception.
class	SignatureSpi This class defines the Service Provider Interface (SPI) for the Signature class, which is used to provide the functionality of a digital signature algorithm.
class	SignedObject SignedObject is a class for the purpose of creating authentic runtime objects whose integrity cannot be compromised without being detected.
class	Signer Deprecated. This class is no longer used. Its functionality has been replaced by java.security.KeyStore, the java.security.cert package, and java.security.Principal.
class	UnrecoverableKeyException This exception is thrown if a key in the keystore cannot be recovered.
class	UnresolvedPermission The UnresolvedPermission class is used to hold Permissions that were "unresolved" when the Policy was initialized.

Methods in java.security that return Object

Object	SignedObject.getObject() Retrieves the encapsulated object.
Object	GuardedObject.getObject() Retrieves the guarded object, or throws an exception if access to the guarded object is denied by the guard.
protected abstract Object	SignatureSpi.engineGetParameter(String param) Deprecated.
Object	SignatureSpi.clone() Returns a clone if the implementation is cloneable.
Object	Signature.getParameter(String param) Deprecated.
Object	Signature.clone() Returns a clone if the implementation is cloneable.
Object	Provider.put(Object key, Object value) Sets the key property to have the specified value.
Object	Provider.remove(Object key) Removes the key property (and its corresponding value).
Object	MessageDigestSpi.clone() Returns a clone if the implementation is cloneable.
Object	MessageDigest.clone() Returns a clone if the implementation is cloneable.
static Object	AccessController.doPrivileged(PrivilegedAction action) Performs the specified PrivilegedAction with privileges enabled.
static Object	AccessController.doPrivileged(PrivilegedAction action, AccessControlContext context) Performs the specified PrivilegedAction with privileges enabled and restricted by the specified AccessControlContext.
static Object	AccessController.doPrivileged(PrivilegedExceptionAction action) Performs the specified PrivilegedExceptionAction with privileges enabled.
static Object	AccessController.doPrivileged(PrivilegedExceptionAction action, AccessControlContext context) Performs the specified PrivilegedExceptionAction with privileges enabled and restricted by the specified AccessControlContext.
Object	PrivilegedAction.run() Performs the computation.
Object	PrivilegedExceptionAction.run() Performs the computation.

Methods in java.security with parameters of type Object

boolean	Identity.equals(Object identity) Deprecated. Tests for equality between the specified object and this identity.
boolean	UnresolvedPermission.equals(Object obj) Checks two UnresolvedPermission objects for equality.
protected abstract void	SignatureSpi.engineSetParameter(String param, Object value) Deprecated. Replaced by engineSetParameter.
void	Signature.setParameter(String param, Object value) Deprecated. Use setParameter.
boolean	AllPermission.equals(Object obj) Checks two AllPermission objects for equality.
Object	Provider.put(Object key, Object value) Sets the key property to have the specified value.
Object	Provider.remove(Object key) Removes the key property (and its corresponding value).
boolean	AccessControlContext.equals(Object obj) Checks two AccessControlContext objects for equality.
boolean	BasicPermission.equals(Object obj) Checks two BasicPermission objects for equality.
boolean	Principal.equals(Object another) Compares this principal to the specified object.
void	Guard.checkGuard(Object object) Determines whether or not to allow access to the guarded object object.
void	Permission.checkGuard(Object object) Implements the guard interface for a permission.
abstract boolean	Permission.equals(Object obj) Checks two Permission objects for equality.
boolean	CodeSource.equals(Object obj) Tests for equality between the specified object and this object.

Constructors in java.security with parameters of type Object

GuardedObject(Object object, Guard guard)
Constructs a GuardedObject using the specified object and guard.

Uses of Object in java.security.acl

Subclasses of Object in java.security.acl

class	AclNotFoundException This is an exception that is thrown whenever a reference is made to a non-existent ACL (Access Control List).
class	LastOwnerException This is an exception that is thrown whenever an attempt is made to delete the last owner of an Access Control List.
class	NotOwnerException This is an exception that is thrown whenever the modification of an object (such as an Access Control List) is only allowed to be done by an owner of the object, but the Principal attempting the modification is not an owner.

Methods in java.security.acl that return Object

Object

AclEntry.clone() Clones this ACL entry.

Methods in java.security.acl with parameters of type Object

boolean

Permission.equals(Object another) Returns true if the object passed matches the permission represented in this interface.

Uses of Object in java.security.cert

Subclasses of Object in java.security.cert

class	Certificate Abstract class for managing a variety of identity certificates.
protected static class	Certificate.CertificateRep Alternate Certificate class for serialization.
class	CertificateFactory This class defines the functionality of a certificate factory, which is used to generate certificate, certification path (CertPath) and certificate revocation list (CRL) objects from their encodings.
class	CertificateFactorySpi This class defines the Service Provider Interface (SPI) for the CertificateFactory class.
class	CertPath An immutable sequence of certificates (a certification path).
protected static class	CertPath.CertPathRep Alternate CertPath class for serialization.
class	CertPathBuilder A class for building certification paths (also known as certificate chains).
class	CertPathBuilderException An exception indicating one of a variety of problems encountered when building a certification path with a CertPathBuilder.
class	CertPathBuilderSpi The Service Provider Interface (SPI) for the CertPathBuilder class.
class	CertPathValidator A class for validating certification paths (also known as certificate chains).
class	CertPathValidatorException An exception indicating one of a variety of problems encountered when validating a certification path.
class	CertPathValidatorSpi The Service Provider Interface (SPI) for the CertPathValidator class.
class	CertStore A class for retrieving Certificates and CRLs from a repository.
class	CertStoreException An exception indicating one of a variety of problems retrieving certificates and CRLs from a CertStore.
class	CertStoreSpi The Service Provider Interface (SPI) for the CertStore class.
class	CollectionCertStoreParameters Parameters used as input for the Collection CertStore algorithm.
class	CRL This class is an abstraction of certificate revocation lists (CRLs) that have different formats but important common uses.
class	CRLException CRL (Certificate Revocation List) Exception.
class	LDAPCertStoreParameters Parameters used as input for the LDAP CertStore algorithm.
class	PKIXBuilderParameters Parameters used as input for the PKIX CertPathBuilder algorithm.
class	PKIXCertPathBuilderResult This class represents the successful result of the PKIX certification path builder algorithm.
class	PKIXCertPathChecker An abstract class that performs one or more checks on an X509Certificate.
class	PKIXCertPathValidatorResult This class represents the successful result of the PKIX certification path validation algorithm.
class	PKIXParameters Parameters used as input for the PKIX CertPathValidator algorithm.
class	PolicyQualifierInfo An immutable policy qualifier represented by the ASN.1 PolicyQualifierInfo structure.
class	TrustAnchor A trust anchor or most-trusted Certification Authority (CA).
class	X509Certificate Abstract class for X.509 certificates.
class	X509CertSelector A CertSelector that selects X509Certificates that match all specified criteria.
class	X509CRL Abstract class for an X.509 Certificate Revocation List (CRL).
class	X509CRLEntry Abstract class for a revoked certificate in a CRL (Certificate Revocation List).
class	X509CRLSelector A CRLSelector that selects X509CRLs that match all specified criteria.

Methods in java.security.cert that return Object

Object	PKIXCertPathValidatorResult.clone() Returns a copy of this object.
Object	PKIXCertPathChecker.clone() Returns a clone of this object.
Object	PKIXParameters.clone() Makes a copy of this PKIXParameters object.
Object	LDAPCertStoreParameters.clone() Returns a copy of this object.
Object	X509CRLSelector.clone() Returns a copy of this object.
Object	X509CertSelector.clone() Returns a copy of this object.
Object	CollectionCertStoreParameters.clone() Returns a copy of this object.
Object	CRLSelector.clone() Makes a copy of this CRLSelector.
Object	CertStoreParameters.clone() Makes a copy of this CertStoreParameters.
Object	CertSelector.clone() Makes a copy of this CertSelector.
Object	CertPathValidatorResult.clone() Makes a copy of this CertPathValidatorResult.
Object	CertPathBuilderResult.clone() Makes a copy of this CertPathBuilderResult.
Object	CertPathParameters.clone() Makes a copy of this CertPathParameters.
protected Object	CertPath.writeReplace() Replaces the CertPath to be serialized with a CertPathRep object.
protected Object	CertPath.CertPathRep.readResolve() Returns a CertPath constructed from the type and data.
protected Object	Certificate.writeReplace() Replace the Certificate to be serialized.
protected Object	Certificate.CertificateRep.readResolve() Resolve the Certificate Object.

Methods in java.security.cert with parameters of type Object

boolean	CertPath.equals(Object other) Compares this certification path for equality with the specified object.
boolean	X509CRLEntry.equals(Object other) Compares this CRL entry for equality with the given object.
boolean	X509CRL.equals(Object other) Compares this CRL for equality with the given object.
boolean	Certificate.equals(Object other) Compares this certificate for equality with the specified object.

Uses of Object in java.security.spec

Subclasses of Object in java.security.spec

class	DSAParameterSpec This class specifies the set of parameters used with the DSA algorithm.
class	DSAPrivateKeySpec This class specifies a DSA private key with its associated parameters.
class	DSAPublicKeySpec This class specifies a DSA public key with its associated parameters.
class	EncodedKeySpec This class represents a public or private key in encoded format.
class	InvalidKeySpecException This is the exception for invalid key specifications.
class	InvalidParameterSpecException This is the exception for invalid parameter specifications.
class	PKCS8EncodedKeySpec This class represents the ASN.1 encoding of a private key, encoded according to the ASN.1 type PrivateKeyInfo.
class	PSSParameterSpec This class specifies a parameter spec for RSA PSS encoding scheme, as defined in the PKCS#1 v2.1.
class	RSAKeyGenParameterSpec This class specifies the set of parameters used to generate an RSA key pair.
class	RSAMultiPrimePrivateCrtKeySpec This class specifies an RSA multi-prime private key, as defined in the PKCS#1 v2.1, using the Chinese Remainder Theorem (CRT) information values for efficiency.
class	RSAOtherPrimeInfo This class represents the triplet (prime, exponent, and coefficient) inside RSA's OtherPrimeInfo structure, as defined in the PKCS#1 v2.1.
class	RSAPrivateCrtKeySpec This class specifies an RSA private key, as defined in the PKCS#1 standard, using the Chinese Remainder Theorem (CRT) information values for efficiency.
class	RSAPrivateKeySpec This class specifies an RSA private key.
class	RSAPublicKeySpec This class specifies an RSA public key.
class	X509EncodedKeySpec This class represents the ASN.1 encoding of a public key, encoded according to the ASN.1 type SubjectPublicKeyInfo.

Uses of Object in java.sql

Subclasses of Object in java.sql

class	BatchUpdateException An exception thrown when an error occurs during a batch update operation.
class	DataTruncation An exception that reports a DataTruncation warning (on reads) or throws a DataTruncation exception (on writes) when JDBC unexpectedly truncates a data value.
class	DriverManager The basic service for managing a set of JDBC drivers. NOTE: The DataSource interface, new in the JDBC 2.0 API, provides another way to connect to a data source.
class	DriverPropertyInfo Driver properties for making a connection.
class	SQLException An exception that provides information on a database access error or other errors.
class	SQLPermission The permission for which the SecurityManager will check when code that is running in an applet calls the DriverManager.setLogWriter method or the DriverManager.setLogStream (deprecated) method.
class	SQLWarning An exception that provides information on database access warnings.
class	Time A thin wrapper around the java.util.Date class that allows the JDBC API to identify this as an SQL TIME value.
class	Timestamp A thin wrapper around java.util.Date that allows the JDBC API to identify this as an SQL TIMESTAMP value.
class	Types The class that defines the constants that are used to identify generic SQL types, called JDBC types.

Methods in java.sql that return Object

Object[]	Struct.getAttributes() Produces the ordered values of the attributes of the SQL structurec type that this Struct object represents.
Object[]	Struct.getAttributes(Map map) Produces the ordered values of the attributes of the SQL structurec type that this Struct object represents.
Object	SQLInput.readObject() Reads the datum at the head of the stream and returns it as an Object in the Java programming language.
Object	CallableStatement.getObject(int parameterIndex) Retrieves the value of the designated parameter as an Object in the Java programming language.
Object	CallableStatement.getObject(int i, Map map) Returns an object representing the value of OUT parameter i and uses map for the custom mapping of the parameter value.
Object	CallableStatement.getObject(String parameterName) Retrieves the value of a parameter as an Object in the Java programming language.
Object	CallableStatement.getObject(String parameterName, Map map) Returns an object representing the value of OUT parameter i and uses map for the custom mapping of the parameter value.
Object	Ref.getObject(Map map) Retrieves the referenced object and maps it to a Java type using the given type map.
Object	Ref.getObject() Retrieves the SQL structured type instance referenced by this Ref object.
Object	ResultSet.getObject(int columnIndex) Gets the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.
Object	ResultSet.getObject(String columnName) Gets the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.
Object	ResultSet.getObject(int i, Map map) Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.
Object	ResultSet.getObject(String colName, Map map) Retrieves the value of the designated column in the current row of this ResultSet object as an Object in the Java programming language.
Object	Array.getArray() Retrieves the contents of the SQL ARRAY value designated by this Array object in the form of an array in the Java programming language.
Object	Array.getArray(Map map) Retrieves the contents of the SQL ARRAY value designated by this Array object.
Object	Array.getArray(long index, int count) Retrieves a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array.
Object	Array.getArray(long index, int count, Map map) Retreives a slice of the SQL ARRAY value designated by this Array object, beginning with the specified index and containing up to count successive elements of the SQL array.

Methods in java.sql with parameters of type Object

void	CallableStatement.setObject(String parameterName, Object x, int targetSqlType, int scale) Sets the value of the designated parameter with the given object.
void	CallableStatement.setObject(String parameterName, Object x, int targetSqlType) Sets the value of the designated parameter with the given object.
void	CallableStatement.setObject(String parameterName, Object x) Sets the value of the designated parameter with the given object.
void	Ref.setObject(Object value) Sets the structured type value that this Ref object references to the given instance of Object.
void	PreparedStatement.setObject(int parameterIndex, Object x, int targetSqlType, int scale) Sets the value of the designated parameter with the given object.
void	PreparedStatement.setObject(int parameterIndex, Object x, int targetSqlType) Sets the value of the designated parameter with the given object.
void	PreparedStatement.setObject(int parameterIndex, Object x) Sets the value of the designated parameter using the given object.
boolean	Timestamp.equals(Object ts) Tests to see if this Timestamp object is equal to the given object.
int	Timestamp.compareTo(Object o) Compares this Timestamp object to the given Object, which must be a Timestamp object.
void	ResultSet.updateObject(int columnIndex, Object x, int scale) Updates the designated column with an Object value.
void	ResultSet.updateObject(int columnIndex, Object x) Updates the designated column with an Object value.
void	ResultSet.updateObject(String columnName, Object x, int scale) Updates the designated column with an Object value.
void	ResultSet.updateObject(String columnName, Object x) Updates the designated column with an Object value.

Uses of Object in java.text

Subclasses of Object in java.text

class	Annotation An Annotation object is used as a wrapper for a text attribute value if the attribute has annotation characteristics.
static class	AttributedCharacterIterator.Attribute Defines attribute keys that are used to identify text attributes.
class	AttributedString An AttributedString holds text and related attribute information.
class	Bidi This class implements the Unicode Version 3.0 Bidirectional Algorithm.
class	BreakIterator The BreakIterator class implements methods for finding the location of boundaries in text.
class	ChoiceFormat A ChoiceFormat allows you to attach a format to a range of numbers.
class	CollationElementIterator The CollationElementIterator class is used as an iterator to walk through each character of an international string.
class	CollationKey A CollationKey represents a String under the rules of a specific Collator object.
class	Collator The Collator class performs locale-sensitive String comparison.
class	DateFormat DateFormat is an abstract class for date/time formatting subclasses which formats and parses dates or time in a language-independent manner.
static class	DateFormat.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from DateFormat.formatToCharacterIterator and as field identifiers in FieldPosition.
class	DateFormatSymbols DateFormatSymbols is a public class for encapsulating localizable date-time formatting data, such as the names of the months, the names of the days of the week, and the time zone data.
class	DecimalFormat DecimalFormat is a concrete subclass of NumberFormat that formats decimal numbers.
class	DecimalFormatSymbols This class represents the set of symbols (such as the decimal separator, the grouping separator, and so on) needed by DecimalFormat to format numbers.
class	FieldPosition FieldPosition is a simple class used by Format and its subclasses to identify fields in formatted output.
class	Format Format is an abstract base class for formatting locale-sensitive information such as dates, messages, and numbers.
static class	Format.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from Format.formatToCharacterIterator and as field identifiers in FieldPosition.
class	MessageFormat MessageFormat provides a means to produce concatenated messages in language-neutral way.
static class	MessageFormat.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from MessageFormat.formatToCharacterIterator.
class	NumberFormat NumberFormat is the abstract base class for all number formats.
static class	NumberFormat.Field Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from NumberFormat.formatToCharacterIterator and as field identifiers in FieldPosition.
class	ParseException Signals that an error has been reached unexpectedly while parsing.
class	ParsePosition ParsePosition is a simple class used by Format and its subclasses to keep track of the current position during parsing.
class	RuleBasedCollator The RuleBasedCollator class is a concrete subclass of Collator that provides a simple, data-driven, table collator.
class	SimpleDateFormat SimpleDateFormat is a concrete class for formatting and parsing dates in a locale-sensitive manner.
class	StringCharacterIterator StringCharacterIterator implements the CharacterIterater protocol for a String.

Methods in java.text that return Object

Object	BreakIterator.clone() Create a copy of this iterator
Object	Annotation.getValue() Returns the value of the attribute, which may be null.
Object	RuleBasedCollator.clone() Standard override; no change in semantics.
Object[]	ChoiceFormat.getFormats() Get the formats passed in the constructor.
Object	ChoiceFormat.clone() Overrides Cloneable
Object	StringCharacterIterator.clone() Creates a copy of this iterator.
Object	Collator.clone() Overrides Cloneable
Object	DateFormatSymbols.clone() Overrides Cloneable
Object	SimpleDateFormat.clone() Creates a copy of this SimpleDateFormat.
Object	DateFormat.parseObject(String source, ParsePosition pos) Parses text from a string to produce a Date.
Object	DateFormat.clone() Overrides Cloneable
protected Object	DateFormat.Field.readResolve() Resolves instances being deserialized to the predefined constants.
Object	DecimalFormatSymbols.clone() Standard override.
Object	NumberFormat.parseObject(String source, ParsePosition pos) Parses text from a string to produce a Number.
Object	NumberFormat.clone() Overrides Cloneable
protected Object	NumberFormat.Field.readResolve() Resolves instances being deserialized to the predefined constants.
Object	DecimalFormat.clone() Standard override; no change in semantics.
Object	CharacterIterator.clone() Create a copy of this iterator
Object	AttributedCharacterIterator.getAttribute(AttributedCharacterIterator.Attribute attribute) Returns the value of the named attribute for the current character.
protected Object	AttributedCharacterIterator.Attribute.readResolve() Resolves instances being deserialized to the predefined constants.
abstract Object	Format.parseObject(String source, ParsePosition pos) Parses text from a string to produce an object.
Object	Format.parseObject(String source) Parses text from the beginning of the given string to produce an object.
Object	Format.clone() Creates and returns a copy of this object.
Object[]	MessageFormat.parse(String source, ParsePosition pos) Parses the string.
Object[]	MessageFormat.parse(String source) Parses text from the beginning of the given string to produce an object array.
Object	MessageFormat.parseObject(String source, ParsePosition pos) Parses text from a string to produce an object array.
Object	MessageFormat.clone() Creates and returns a copy of this object.
protected Object	MessageFormat.Field.readResolve() Resolves instances being deserialized to the predefined constants.

Methods in java.text with parameters of type Object

static void	Bidi.reorderVisually(byte[] levels, int levelStart, Object[] objects, int objectStart, int count) Reorder the objects in the array into visual order based on their levels.
boolean	RuleBasedCollator.equals(Object obj) Compares the equality of two collation objects.
boolean	ChoiceFormat.equals(Object obj) Equality comparision between two
void	AttributedString.addAttribute(AttributedCharacterIterator.Attribute attribute, Object value) Adds an attribute to the entire string.
void	AttributedString.addAttribute(AttributedCharacterIterator.Attribute attribute, Object value, int beginIndex, int endIndex) Adds an attribute to a subrange of the string.
boolean	StringCharacterIterator.equals(Object obj) Compares the equality of two StringCharacterIterator objects.
int	CollationKey.compareTo(Object o) Compares this CollationKey with the specified Object for order.
boolean	CollationKey.equals(Object target) Compare this CollationKey and the target CollationKey for equality.
int	Collator.compare(Object o1, Object o2) Compares its two arguments for order.
boolean	Collator.equals(Object that) Compares the equality of two Collators.
boolean	DateFormatSymbols.equals(Object obj) Override equals
AttributedCharacterIterator	SimpleDateFormat.formatToCharacterIterator(Object obj) Formats an Object producing an AttributedCharacterIterator.
boolean	SimpleDateFormat.equals(Object obj) Compares the given object with this SimpleDateFormat for equality.
StringBuffer	DateFormat.format(Object obj, StringBuffer toAppendTo, FieldPosition fieldPosition) Overrides Format.
boolean	DateFormat.equals(Object obj) Overrides equals
boolean	DecimalFormatSymbols.equals(Object obj) Override equals.
StringBuffer	NumberFormat.format(Object number, StringBuffer toAppendTo, FieldPosition pos) Formats an object to produce a string.
boolean	NumberFormat.equals(Object obj) Overrides equals
AttributedCharacterIterator	DecimalFormat.formatToCharacterIterator(Object obj) Formats an Object producing an AttributedCharacterIterator.
boolean	DecimalFormat.equals(Object obj) Overrides equals
boolean	ParsePosition.equals(Object obj) Overrides equals
boolean	AttributedCharacterIterator.Attribute.equals(Object obj) Compares two objects for equality.
boolean	FieldPosition.equals(Object obj) Overrides equals
String	Format.format(Object obj) Formats an object to produce a string.
abstract StringBuffer	Format.format(Object obj, StringBuffer toAppendTo, FieldPosition pos) Formats an object and appends the resulting text to a given string buffer.
AttributedCharacterIterator	Format.formatToCharacterIterator(Object obj) Formats an Object producing an AttributedCharacterIterator.
StringBuffer	MessageFormat.format(Object[] arguments, StringBuffer result, FieldPosition pos) Formats an array of objects and appends the MessageFormat's pattern, with format elements replaced by the formatted objects, to the provided StringBuffer.
static String	MessageFormat.format(String pattern, Object[] arguments) Creates a MessageFormat with the given pattern and uses it to format the given arguments.
StringBuffer	MessageFormat.format(Object arguments, StringBuffer result, FieldPosition pos) Formats an array of objects and appends the MessageFormat's pattern, with format elements replaced by the formatted objects, to the provided StringBuffer.
AttributedCharacterIterator	MessageFormat.formatToCharacterIterator(Object arguments) Formats an array of objects and inserts them into the MessageFormat's pattern, producing an AttributedCharacterIterator.
boolean	MessageFormat.equals(Object obj) Equality comparison between two message format objects

Constructors in java.text with parameters of type Object

Annotation(Object value)
Constructs an annotation record with the given value, which may be null.

Uses of Object in java.util

Subclasses of Object in java.util

class	AbstractCollection This class provides a skeletal implementation of the Collection interface, to minimize the effort required to implement this interface.
class	AbstractList This class provides a skeletal implementation of the List interface to minimize the effort required to implement this interface backed by a "random access" data store (such as an array).
class	AbstractMap This class provides a skeletal implementation of the Map interface, to minimize the effort required to implement this interface.
class	AbstractSequentialList This class provides a skeletal implementation of the List interface to minimize the effort required to implement this interface backed by a "sequential access" data store (such as a linked list).
class	AbstractSet This class provides a skeletal implementation of the Set interface to minimize the effort required to implement this interface.
class	ArrayList Resizable-array implementation of the List interface.
class	Arrays This class contains various methods for manipulating arrays (such as sorting and searching).
class	BitSet This class implements a vector of bits that grows as needed.
class	Calendar Calendar is an abstract base class for converting between a Date object and a set of integer fields such as YEAR, MONTH, DAY, HOUR, and so on.
class	Collections This class consists exclusively of static methods that operate on or return collections.
class	ConcurrentModificationException This exception may be thrown by methods that have detected concurrent modification of an object when such modification is not permissible.
class	Currency Represents a currency.
class	Date The class Date represents a specific instant in time, with millisecond precision.
class	Dictionary The Dictionary class is the abstract parent of any class, such as Hashtable, which maps keys to values.
class	EmptyStackException Thrown by methods in the Stack class to indicate that the stack is empty.
class	EventListenerProxy An abstract wrapper class for an EventListener class which associates a set of additional parameters with the listener.
class	EventObject The root class from which all event state objects shall be derived.
class	GregorianCalendar GregorianCalendar is a concrete subclass of Calendar and provides the standard calendar used by most of the world.
class	HashMap Hash table based implementation of the Map interface.
class	HashSet This class implements the Set interface, backed by a hash table (actually a HashMap instance).
class	Hashtable This class implements a hashtable, which maps keys to values.
class	IdentityHashMap This class implements the Map interface with a hash table, using reference-equality in place of object-equality when comparing keys (and values).
class	LinkedHashMap Hash table and linked list implementation of the Map interface, with predictable iteration order.
class	LinkedHashSet Hash table and linked list implementation of the Set interface, with predictable iteration order.
class	LinkedList Linked list implementation of the List interface.
class	ListResourceBundle ListResourceBundle is an abstract subclass of ResourceBundle that manages resources for a locale in a convenient and easy to use list.
class	Locale A Locale object represents a specific geographical, political, or cultural region.
class	MissingResourceException Signals that a resource is missing.
class	NoSuchElementException Thrown by the nextElement method of an Enumeration to indicate that there are no more elements in the enumeration.
class	Observable This class represents an observable object, or "data" in the model-view paradigm.
class	Properties The Properties class represents a persistent set of properties.
class	PropertyPermission This class is for property permissions.
class	PropertyResourceBundle PropertyResourceBundle is a concrete subclass of ResourceBundle that manages resources for a locale using a set of static strings from a property file.
class	Random An instance of this class is used to generate a stream of pseudorandom numbers.
class	ResourceBundle Resource bundles contain locale-specific objects.
class	SimpleTimeZone SimpleTimeZone is a concrete subclass of TimeZone that represents a time zone for use with a Gregorian calendar.
class	Stack The Stack class represents a last-in-first-out (LIFO) stack of objects.
class	StringTokenizer The string tokenizer class allows an application to break a string into tokens.
class	Timer A facility for threads to schedule tasks for future execution in a background thread.
class	TimerTask A task that can be scheduled for one-time or repeated execution by a Timer.
class	TimeZone TimeZone represents a time zone offset, and also figures out daylight savings.
class	TooManyListenersException The TooManyListenersException Exception is used as part of the Java Event model to annotate and implement a unicast special case of a multicast Event Source.
class	TreeMap Red-Black tree based implementation of the SortedMap interface.
class	TreeSet This class implements the Set interface, backed by a TreeMap instance.
class	Vector The Vector class implements a growable array of objects.
class	WeakHashMap A hashtable-based Map implementation with weak keys.

Fields in java.util declared as Object

protected Object	EventObject.source The object on which the Event initially occurred.
protected Object[]	Vector.elementData The array buffer into which the components of the vector are stored.

Methods in java.util that return Object

Object	IdentityHashMap.get(Object key) Returns the value to which the specified key is mapped in this identity hash map, or null if the map contains no mapping for this key.
Object	IdentityHashMap.put(Object key, Object value) Associates the specified value with the specified key in this identity hash map.
Object	IdentityHashMap.remove(Object key) Removes the mapping for this key from this map if present.
Object	IdentityHashMap.clone() Returns a shallow copy of this identity hash map: the keys and values themselves are not cloned.
Object	WeakHashMap.get(Object key) Returns the value to which the specified key is mapped in this weak hash map, or null if the map contains no mapping for this key.
Object	WeakHashMap.put(Object key, Object value) Associates the specified value with the specified key in this map.
Object	WeakHashMap.remove(Object key) Removes the mapping for this key from this map if present.
Object	TreeMap.get(Object key) Returns the value to which this map maps the specified key.
Object	TreeMap.firstKey() Returns the first (lowest) key currently in this sorted map.
Object	TreeMap.lastKey() Returns the last (highest) key currently in this sorted map.
Object	TreeMap.put(Object key, Object value) Associates the specified value with the specified key in this map.
Object	TreeMap.remove(Object key) Removes the mapping for this key from this TreeMap if present.
Object	TreeMap.clone() Returns a shallow copy of this TreeMap instance.
Object	LinkedList.getFirst() Returns the first element in this list.
Object	LinkedList.getLast() Returns the last element in this list.
Object	LinkedList.removeFirst() Removes and returns the first element from this list.
Object	LinkedList.removeLast() Removes and returns the last element from this list.
Object	LinkedList.get(int index) Returns the element at the specified position in this list.
Object	LinkedList.set(int index, Object element) Replaces the element at the specified position in this list with the specified element.
Object	LinkedList.remove(int index) Removes the element at the specified position in this list.
Object	LinkedList.clone() Returns a shallow copy of this LinkedList.
Object[]	LinkedList.toArray() Returns an array containing all of the elements in this list in the correct order.
Object[]	LinkedList.toArray(Object[] a) Returns an array containing all of the elements in this list in the correct order; the runtime type of the returned array is that of the specified array.
Object	AbstractSequentialList.get(int index) Returns the element at the specified position in this list.
Object	AbstractSequentialList.set(int index, Object element) Replaces the element at the specified position in this list with the specified element.
Object	AbstractSequentialList.remove(int index) Removes the element at the specified position in this list.
Object	TreeSet.first() Returns the first (lowest) element currently in this sorted set.
Object	TreeSet.last() Returns the last (highest) element currently in this sorted set.
Object	TreeSet.clone() Returns a shallow copy of this TreeSet instance.
static Object	Collections.min(Collection coll) Returns the minimum element of the given collection, according to the natural ordering of its elements.
static Object	Collections.min(Collection coll, Comparator comp) Returns the minimum element of the given collection, according to the order induced by the specified comparator.
static Object	Collections.max(Collection coll) Returns the maximum element of the given collection, according to the natural ordering of its elements.
static Object	Collections.max(Collection coll, Comparator comp) Returns the maximum element of the given collection, according to the order induced by the specified comparator.
Object	SortedSet.first() Returns the first (lowest) element currently in this sorted set.
Object	SortedSet.last() Returns the last (highest) element currently in this sorted set.
Object	SimpleTimeZone.clone() Returns a clone of this SimpleTimeZone instance.
Object	StringTokenizer.nextElement() Returns the same value as the nextToken method, except that its declared return value is Object rather than String.
Object	PropertyResourceBundle.handleGetObject(String key)
Object	ListResourceBundle.handleGetObject(String key)
protected abstract Object[][]	ListResourceBundle.getContents() See class description.
Object	EventObject.getSource() The object on which the Event initially occurred.
Object	Date.clone() Return a copy of this object.
Object	TimeZone.clone() Creates a copy of this TimeZone.
Object	Calendar.clone() Overrides Cloneable
Object	BitSet.clone() Cloning this BitSet produces a new BitSet that is equal to it.
Object	Properties.setProperty(String key, String value) Calls the Hashtable method put.
Object	HashSet.clone() Returns a shallow copy of this HashSet instance: the elements themselves are not cloned.
Object	SortedMap.firstKey() Returns the first (lowest) key currently in this sorted map.
Object	SortedMap.lastKey() Returns the last (highest) key currently in this sorted map.
Object	LinkedHashMap.get(Object key) Returns the value to which this map maps the specified key.
Object	ArrayList.clone() Returns a shallow copy of this ArrayList instance.
Object[]	ArrayList.toArray() Returns an array containing all of the elements in this list in the correct order.
Object[]	ArrayList.toArray(Object[] a) Returns an array containing all of the elements in this list in the correct order; the runtime type of the returned array is that of the specified array.
Object	ArrayList.get(int index) Returns the element at the specified position in this list.
Object	ArrayList.set(int index, Object element) Replaces the element at the specified position in this list with the specified element.
Object	ArrayList.remove(int index) Removes the element at the specified position in this list.
Object	ListIterator.next() Returns the next element in the list.
Object	ListIterator.previous() Returns the previous element in the list.
Object	ResourceBundle.getObject(String key) Gets an object for the given key from this resource bundle or one of its parents.
protected abstract Object	ResourceBundle.handleGetObject(String key) Gets an object for the given key from this resource bundle.
Object	Iterator.next() Returns the next element in the iteration.
Object	Stack.push(Object item) Pushes an item onto the top of this stack.
Object	Stack.pop() Removes the object at the top of this stack and returns that object as the value of this function.
Object	Stack.peek() Looks at the object at the top of this stack without removing it from the stack.
Object	Enumeration.nextElement() Returns the next element of this enumeration if this enumeration object has at least one more element to provide.
Object	AbstractMap.get(Object key) Returns the value to which this map maps the specified key.
Object	AbstractMap.put(Object key, Object value) Associates the specified value with the specified key in this map (optional operation).
Object	AbstractMap.remove(Object key) Removes the mapping for this key from this map if present (optional operation).
protected Object	AbstractMap.clone() Returns a shallow copy of this AbstractMap instance: the keys and values themselves are not cloned.
Object	HashMap.get(Object key) Returns the value to which the specified key is mapped in this identity hash map, or null if the map contains no mapping for this key.
Object	HashMap.put(Object key, Object value) Associates the specified value with the specified key in this map.
Object	HashMap.remove(Object key) Removes the mapping for this key from this map if present.
Object	HashMap.clone() Returns a shallow copy of this HashMap instance: the keys and values themselves are not cloned.
Object[]	List.toArray() Returns an array containing all of the elements in this list in proper sequence.
Object[]	List.toArray(Object[] a) Returns an array containing all of the elements in this list in proper sequence; the runtime type of the returned array is that of the specified array.
Object	List.get(int index) Returns the element at the specified position in this list.
Object	List.set(int index, Object element) Replaces the element at the specified position in this list with the specified element (optional operation).
Object	List.remove(int index) Removes the element at the specified position in this list (optional operation).
Object[]	AbstractCollection.toArray() Returns an array containing all of the elements in this collection.
Object[]	AbstractCollection.toArray(Object[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
abstract Object	AbstractList.get(int index) Returns the element at the specified position in this list.
Object	AbstractList.set(int index, Object element) Replaces the element at the specified position in this list with the specified element (optional operation).
Object	AbstractList.remove(int index) Removes the element at the specified position in this list (optional operation).
Object	Vector.elementAt(int index) Returns the component at the specified index.
Object	Vector.firstElement() Returns the first component (the item at index 0) of this vector.
Object	Vector.lastElement() Returns the last component of the vector.
Object	Vector.clone() Returns a clone of this vector.
Object[]	Vector.toArray() Returns an array containing all of the elements in this Vector in the correct order.
Object[]	Vector.toArray(Object[] a) Returns an array containing all of the elements in this Vector in the correct order; the runtime type of the returned array is that of the specified array.
Object	Vector.get(int index) Returns the element at the specified position in this Vector.
Object	Vector.set(int index, Object element) Replaces the element at the specified position in this Vector with the specified element.
Object	Vector.remove(int index) Removes the element at the specified position in this Vector.
Object	Map.get(Object key) Returns the value to which this map maps the specified key.
Object	Map.put(Object key, Object value) Associates the specified value with the specified key in this map (optional operation).
Object	Map.remove(Object key) Removes the mapping for this key from this map if it is present (optional operation).
Object	Map.Entry.getKey() Returns the key corresponding to this entry.
Object	Map.Entry.getValue() Returns the value corresponding to this entry.
Object	Map.Entry.setValue(Object value) Replaces the value corresponding to this entry with the specified value (optional operation).
abstract Object	Dictionary.get(Object key) Returns the value to which the key is mapped in this dictionary.
abstract Object	Dictionary.put(Object key, Object value) Maps the specified key to the specified value in this dictionary.
abstract Object	Dictionary.remove(Object key) Removes the key (and its corresponding value) from this dictionary.
Object	Hashtable.get(Object key) Returns the value to which the specified key is mapped in this hashtable.
Object	Hashtable.put(Object key, Object value) Maps the specified key to the specified value in this hashtable.
Object	Hashtable.remove(Object key) Removes the key (and its corresponding value) from this hashtable.
Object	Hashtable.clone() Creates a shallow copy of this hashtable.
Object	Locale.clone() Overrides Cloneable
Object[]	Collection.toArray() Returns an array containing all of the elements in this collection.
Object[]	Collection.toArray(Object[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
Object[]	Set.toArray() Returns an array containing all of the elements in this set.
Object[]	Set.toArray(Object[] a) Returns an array containing all of the elements in this set; the runtime type of the returned array is that of the specified array.

Methods in java.util with parameters of type Object

static void	Arrays.sort(Object[] a) Sorts the specified array of objects into ascending order, according to the natural ordering of its elements.
static void	Arrays.sort(Object[] a, int fromIndex, int toIndex) Sorts the specified range of the specified array of objects into ascending order, according to the natural ordering of its elements.
static void	Arrays.sort(Object[] a, Comparator c) Sorts the specified array of objects according to the order induced by the specified comparator.
static void	Arrays.sort(Object[] a, int fromIndex, int toIndex, Comparator c) Sorts the specified range of the specified array of objects according to the order induced by the specified comparator.
static int	Arrays.binarySearch(Object[] a, Object key) Searches the specified array for the specified object using the binary search algorithm.
static int	Arrays.binarySearch(Object[] a, Object key, Comparator c) Searches the specified array for the specified object using the binary search algorithm.
static boolean	Arrays.equals(Object[] a, Object[] a2) Returns true if the two specified arrays of Objects are equal to one another.
static void	Arrays.fill(Object[] a, Object val) Assigns the specified Object reference to each element of the specified array of Objects.
static void	Arrays.fill(Object[] a, int fromIndex, int toIndex, Object val) Assigns the specified Object reference to each element of the specified range of the specified array of Objects.
static List	Arrays.asList(Object[] a) Returns a fixed-size list backed by the specified array.
Object	IdentityHashMap.get(Object key) Returns the value to which the specified key is mapped in this identity hash map, or null if the map contains no mapping for this key.
boolean	IdentityHashMap.containsKey(Object key) Tests whether the specified object reference is a key in this identity hash map.
boolean	IdentityHashMap.containsValue(Object value) Tests whether the specified object reference is a value in this identity hash map.
Object	IdentityHashMap.put(Object key, Object value) Associates the specified value with the specified key in this identity hash map.
Object	IdentityHashMap.remove(Object key) Removes the mapping for this key from this map if present.
boolean	IdentityHashMap.equals(Object o) Compares the specified object with this map for equality.
Object	WeakHashMap.get(Object key) Returns the value to which the specified key is mapped in this weak hash map, or null if the map contains no mapping for this key.
boolean	WeakHashMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
Object	WeakHashMap.put(Object key, Object value) Associates the specified value with the specified key in this map.
Object	WeakHashMap.remove(Object key) Removes the mapping for this key from this map if present.
boolean	WeakHashMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
boolean	TreeMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
boolean	TreeMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
Object	TreeMap.get(Object key) Returns the value to which this map maps the specified key.
Object	TreeMap.put(Object key, Object value) Associates the specified value with the specified key in this map.
Object	TreeMap.remove(Object key) Removes the mapping for this key from this TreeMap if present.
SortedMap	TreeMap.subMap(Object fromKey, Object toKey) Returns a view of the portion of this map whose keys range from fromKey, inclusive, to toKey, exclusive.
SortedMap	TreeMap.headMap(Object toKey) Returns a view of the portion of this map whose keys are strictly less than toKey.
SortedMap	TreeMap.tailMap(Object fromKey) Returns a view of the portion of this map whose keys are greater than or equal to fromKey.
void	LinkedList.addFirst(Object o) Inserts the given element at the beginning of this list.
void	LinkedList.addLast(Object o) Appends the given element to the end of this list.
boolean	LinkedList.contains(Object o) Returns true if this list contains the specified element.
boolean	LinkedList.add(Object o) Appends the specified element to the end of this list.
boolean	LinkedList.remove(Object o) Removes the first occurrence of the specified element in this list.
Object	LinkedList.set(int index, Object element) Replaces the element at the specified position in this list with the specified element.
void	LinkedList.add(int index, Object element) Inserts the specified element at the specified position in this list.
int	LinkedList.indexOf(Object o) Returns the index in this list of the first occurrence of the specified element, or -1 if the List does not contain this element.
int	LinkedList.lastIndexOf(Object o) Returns the index in this list of the last occurrence of the specified element, or -1 if the list does not contain this element.
Object[]	LinkedList.toArray(Object[] a) Returns an array containing all of the elements in this list in the correct order; the runtime type of the returned array is that of the specified array.
Object	AbstractSequentialList.set(int index, Object element) Replaces the element at the specified position in this list with the specified element.
void	AbstractSequentialList.add(int index, Object element) Inserts the specified element at the specified position in this list.
boolean	TreeSet.contains(Object o) Returns true if this set contains the specified element.
boolean	TreeSet.add(Object o) Adds the specified element to this set if it is not already present.
boolean	TreeSet.remove(Object o) Removes the specified element from this set if it is present.
SortedSet	TreeSet.subSet(Object fromElement, Object toElement) Returns a view of the portion of this set whose elements range from fromElement, inclusive, to toElement, exclusive.
SortedSet	TreeSet.headSet(Object toElement) Returns a view of the portion of this set whose elements are strictly less than toElement.
SortedSet	TreeSet.tailSet(Object fromElement) Returns a view of the portion of this set whose elements are greater than or equal to fromElement.
static int	Collections.binarySearch(List list, Object key) Searches the specified list for the specified object using the binary search algorithm.
static int	Collections.binarySearch(List list, Object key, Comparator c) Searches the specified list for the specified object using the binary search algorithm.
static void	Collections.fill(List list, Object obj) Replaces all of the elements of the specified list with the specified element.
static boolean	Collections.replaceAll(List list, Object oldVal, Object newVal) Replaces all occurrences of one specified value in a list with another.
static Set	Collections.singleton(Object o) Returns an immutable set containing only the specified object.
static List	Collections.singletonList(Object o) Returns an immutable list containing only the specified object.
static Map	Collections.singletonMap(Object key, Object value) Returns an immutable map, mapping only the specified key to the specified value.
static List	Collections.nCopies(int n, Object o) Returns an immutable list consisting of n copies of the specified object.
SortedSet	SortedSet.subSet(Object fromElement, Object toElement) Returns a view of the portion of this sorted set whose elements range from fromElement, inclusive, to toElement, exclusive.
SortedSet	SortedSet.headSet(Object toElement) Returns a view of the portion of this sorted set whose elements are strictly less than toElement.
SortedSet	SortedSet.tailSet(Object fromElement) Returns a view of the portion of this sorted set whose elements are greater than or equal to fromElement.
boolean	SimpleTimeZone.equals(Object obj) Compares the equality of two SimpleTimeZone objects.
boolean	PropertyPermission.equals(Object obj) Checks two PropertyPermission objects for equality.
void	Observer.update(Observable o, Object arg) This method is called whenever the observed object is changed.
void	Observable.notifyObservers(Object arg) If this object has changed, as indicated by the hasChanged method, then notify all of its observers and then call the clearChanged method to indicate that this object has no longer changed.
boolean	GregorianCalendar.equals(Object obj) Compares this GregorianCalendar to an object reference.
boolean	Date.equals(Object obj) Compares two dates for equality.
int	Date.compareTo(Object o) Compares this Date to another Object.
boolean	Calendar.equals(Object obj) Compares this calendar to the specified object.
boolean	Calendar.before(Object when) Compares the time field records.
boolean	Calendar.after(Object when) Compares the time field records.
boolean	BitSet.equals(Object obj) Compares this object against the specified object.
boolean	AbstractSet.equals(Object o) Compares the specified object with this set for equality.
boolean	HashSet.contains(Object o) Returns true if this set contains the specified element.
boolean	HashSet.add(Object o) Adds the specified element to this set if it is not already present.
boolean	HashSet.remove(Object o) Removes the specified element from this set if it is present.
SortedMap	SortedMap.subMap(Object fromKey, Object toKey) Returns a view of the portion of this sorted map whose keys range from fromKey, inclusive, to toKey, exclusive.
SortedMap	SortedMap.headMap(Object toKey) Returns a view of the portion of this sorted map whose keys are strictly less than toKey.
SortedMap	SortedMap.tailMap(Object fromKey) Returns a view of the portion of this sorted map whose keys are greater than or equal to fromKey.
boolean	LinkedHashMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
Object	LinkedHashMap.get(Object key) Returns the value to which this map maps the specified key.
boolean	ArrayList.contains(Object elem) Returns true if this list contains the specified element.
int	ArrayList.indexOf(Object elem) Searches for the first occurence of the given argument, testing for equality using the equals method.
int	ArrayList.lastIndexOf(Object elem) Returns the index of the last occurrence of the specified object in this list.
Object[]	ArrayList.toArray(Object[] a) Returns an array containing all of the elements in this list in the correct order; the runtime type of the returned array is that of the specified array.
Object	ArrayList.set(int index, Object element) Replaces the element at the specified position in this list with the specified element.
boolean	ArrayList.add(Object o) Appends the specified element to the end of this list.
void	ArrayList.add(int index, Object element) Inserts the specified element at the specified position in this list.
void	ListIterator.set(Object o) Replaces the last element returned by next or previous with the specified element (optional operation).
void	ListIterator.add(Object o) Inserts the specified element into the list (optional operation).
Object	Stack.push(Object item) Pushes an item onto the top of this stack.
int	Stack.search(Object o) Returns the 1-based position where an object is on this stack.
boolean	AbstractMap.containsValue(Object value) Returns true if this map maps one or more keys to this value.
boolean	AbstractMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
Object	AbstractMap.get(Object key) Returns the value to which this map maps the specified key.
Object	AbstractMap.put(Object key, Object value) Associates the specified value with the specified key in this map (optional operation).
Object	AbstractMap.remove(Object key) Removes the mapping for this key from this map if present (optional operation).
boolean	AbstractMap.equals(Object o) Compares the specified object with this map for equality.
Object	HashMap.get(Object key) Returns the value to which the specified key is mapped in this identity hash map, or null if the map contains no mapping for this key.
boolean	HashMap.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
Object	HashMap.put(Object key, Object value) Associates the specified value with the specified key in this map.
Object	HashMap.remove(Object key) Removes the mapping for this key from this map if present.
boolean	HashMap.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
boolean	List.contains(Object o) Returns true if this list contains the specified element.
Object[]	List.toArray(Object[] a) Returns an array containing all of the elements in this list in proper sequence; the runtime type of the returned array is that of the specified array.
boolean	List.add(Object o) Appends the specified element to the end of this list (optional operation).
boolean	List.remove(Object o) Removes the first occurrence in this list of the specified element (optional operation).
boolean	List.equals(Object o) Compares the specified object with this list for equality.
Object	List.set(int index, Object element) Replaces the element at the specified position in this list with the specified element (optional operation).
void	List.add(int index, Object element) Inserts the specified element at the specified position in this list (optional operation).
int	List.indexOf(Object o) Returns the index in this list of the first occurrence of the specified element, or -1 if this list does not contain this element.
int	List.lastIndexOf(Object o) Returns the index in this list of the last occurrence of the specified element, or -1 if this list does not contain this element.
boolean	AbstractCollection.contains(Object o) Returns true if this collection contains the specified element.
Object[]	AbstractCollection.toArray(Object[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
boolean	AbstractCollection.add(Object o) Ensures that this collection contains the specified element (optional operation).
boolean	AbstractCollection.remove(Object o) Removes a single instance of the specified element from this collection, if it is present (optional operation).
boolean	AbstractList.add(Object o) Appends the specified element to the end of this List (optional operation).
Object	AbstractList.set(int index, Object element) Replaces the element at the specified position in this list with the specified element (optional operation).
void	AbstractList.add(int index, Object element) Inserts the specified element at the specified position in this list (optional operation).
int	AbstractList.indexOf(Object o) Returns the index in this list of the first occurence of the specified element, or -1 if the list does not contain this element.
int	AbstractList.lastIndexOf(Object o) Returns the index in this list of the last occurence of the specified element, or -1 if the list does not contain this element.
boolean	AbstractList.equals(Object o) Compares the specified object with this list for equality.
void	Vector.copyInto(Object[] anArray) Copies the components of this vector into the specified array.
boolean	Vector.contains(Object elem) Tests if the specified object is a component in this vector.
int	Vector.indexOf(Object elem) Searches for the first occurence of the given argument, testing for equality using the equals method.
int	Vector.indexOf(Object elem, int index) Searches for the first occurence of the given argument, beginning the search at index, and testing for equality using the equals method.
int	Vector.lastIndexOf(Object elem) Returns the index of the last occurrence of the specified object in this vector.
int	Vector.lastIndexOf(Object elem, int index) Searches backwards for the specified object, starting from the specified index, and returns an index to it.
void	Vector.setElementAt(Object obj, int index) Sets the component at the specified index of this vector to be the specified object.
void	Vector.insertElementAt(Object obj, int index) Inserts the specified object as a component in this vector at the specified index.
void	Vector.addElement(Object obj) Adds the specified component to the end of this vector, increasing its size by one.
boolean	Vector.removeElement(Object obj) Removes the first (lowest-indexed) occurrence of the argument from this vector.
Object[]	Vector.toArray(Object[] a) Returns an array containing all of the elements in this Vector in the correct order; the runtime type of the returned array is that of the specified array.
Object	Vector.set(int index, Object element) Replaces the element at the specified position in this Vector with the specified element.
boolean	Vector.add(Object o) Appends the specified element to the end of this Vector.
boolean	Vector.remove(Object o) Removes the first occurrence of the specified element in this Vector If the Vector does not contain the element, it is unchanged.
void	Vector.add(int index, Object element) Inserts the specified element at the specified position in this Vector.
boolean	Vector.equals(Object o) Compares the specified Object with this Vector for equality.
boolean	Map.containsKey(Object key) Returns true if this map contains a mapping for the specified key.
boolean	Map.containsValue(Object value) Returns true if this map maps one or more keys to the specified value.
Object	Map.get(Object key) Returns the value to which this map maps the specified key.
Object	Map.put(Object key, Object value) Associates the specified value with the specified key in this map (optional operation).
Object	Map.remove(Object key) Removes the mapping for this key from this map if it is present (optional operation).
boolean	Map.equals(Object o) Compares the specified object with this map for equality.
Object	Map.Entry.setValue(Object value) Replaces the value corresponding to this entry with the specified value (optional operation).
boolean	Map.Entry.equals(Object o) Compares the specified object with this entry for equality.
abstract Object	Dictionary.get(Object key) Returns the value to which the key is mapped in this dictionary.
abstract Object	Dictionary.put(Object key, Object value) Maps the specified key to the specified value in this dictionary.
abstract Object	Dictionary.remove(Object key) Removes the key (and its corresponding value) from this dictionary.
boolean	Hashtable.contains(Object value) Tests if some key maps into the specified value in this hashtable.
boolean	Hashtable.containsValue(Object value) Returns true if this Hashtable maps one or more keys to this value.
boolean	Hashtable.containsKey(Object key) Tests if the specified object is a key in this hashtable.
Object	Hashtable.get(Object key) Returns the value to which the specified key is mapped in this hashtable.
Object	Hashtable.put(Object key, Object value) Maps the specified key to the specified value in this hashtable.
Object	Hashtable.remove(Object key) Removes the key (and its corresponding value) from this hashtable.
boolean	Hashtable.equals(Object o) Compares the specified Object with this Map for equality, as per the definition in the Map interface.
boolean	Locale.equals(Object obj) Returns true if this Locale is equal to another object.
int	Comparator.compare(Object o1, Object o2) Compares its two arguments for order.
boolean	Comparator.equals(Object obj) Indicates whether some other object is "equal to" this Comparator.
boolean	Collection.contains(Object o) Returns true if this collection contains the specified element.
Object[]	Collection.toArray(Object[] a) Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
boolean	Collection.add(Object o) Ensures that this collection contains the specified element (optional operation).
boolean	Collection.remove(Object o) Removes a single instance of the specified element from this collection, if it is present (optional operation).
boolean	Collection.equals(Object o) Compares the specified object with this collection for equality.
boolean	Set.contains(Object o) Returns true if this set contains the specified element.
Object[]	Set.toArray(Object[] a) Returns an array containing all of the elements in this set; the runtime type of the returned array is that of the specified array.
boolean	Set.add(Object o) Adds the specified element to this set if it is not already present (optional operation).
boolean	Set.remove(Object o) Removes the specified element from this set if it is present (optional operation).
boolean	Set.equals(Object o) Compares the specified object with this set for equality.

Constructors in java.util with parameters of type Object

EventObject(Object source)
Constructs a prototypical Event.

Uses of Object in java.util.jar

Subclasses of Object in java.util.jar

class	Attributes The Attributes class maps Manifest attribute names to associated string values.
static class	Attributes.Name The Attributes.Name class represents an attribute name stored in this Map.
class	JarEntry This class is used to represent a JAR file entry.
class	JarException Signals that an error of some sort has occurred while reading from or writing to a JAR file.
class	JarFile The JarFile class is used to read the contents of a JAR file from any file that can be opened with java.io.RandomAccessFile.
class	JarInputStream The JarInputStream class is used to read the contents of a JAR file from any input stream.
class	JarOutputStream The JarOutputStream class is used to write the contents of a JAR file to any output stream.
class	Manifest The Manifest class is used to maintain Manifest entry names and their associated Attributes.

Methods in java.util.jar that return Object

Object	Attributes.get(Object name) Returns the value of the specified attribute name, or null if the attribute name was not found.
Object	Attributes.put(Object name, Object value) Associates the specified value with the specified attribute name (key) in this Map.
Object	Attributes.remove(Object name) Removes the attribute with the specified name (key) from this Map.
Object	Attributes.clone() Returns a copy of the Attributes, implemented as follows:
Object	Manifest.clone() Returns a shallow copy of this Manifest.

Methods in java.util.jar with parameters of type Object

Object	Attributes.get(Object name) Returns the value of the specified attribute name, or null if the attribute name was not found.
Object	Attributes.put(Object name, Object value) Associates the specified value with the specified attribute name (key) in this Map.
Object	Attributes.remove(Object name) Removes the attribute with the specified name (key) from this Map.
boolean	Attributes.containsValue(Object value) Returns true if this Map maps one or more attribute names (keys) to the specified value.
boolean	Attributes.containsKey(Object name) Returns true if this Map contains the specified attribute name (key).
boolean	Attributes.equals(Object o) Compares the specified Attributes object with this Map for equality.
boolean	Attributes.Name.equals(Object o) Compares this attribute name to another for equality.
boolean	Manifest.equals(Object o) Returns true if the specified Object is also a Manifest and has the same main Attributes and entries.

Uses of Object in java.util.logging

Subclasses of Object in java.util.logging

class	ConsoleHandler This Handler publishes log records to System.err.
class	ErrorManager ErrorManager objects can be attached to Handlers to process any error that occur on a Handler during Logging.
class	FileHandler Simple file logging Handler.
class	Formatter A Formatter provides support for formatting LogRecords.
class	Handler A Handler object takes log messages from a Logger and exports them.
class	Level &nbs