java.awt

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## Package java.awt

Contains all of the classes for creating user interfaces and for painting graphics and images.

See:
Description

Interface Summary
ActiveEvent | An interface for events that know how to dispatch themselves.
Adjustable | The interface for objects which have an adjustable numeric value contained within a bounded range of values.
Composite | The `Composite` interface defines the methods to compose a draw primitive with the underlying graphics area.
ItemSelectable | The interface for objects which contain a set of items for which zero or more can be selected.
KeyEventDispatcher | A KeyEventDispatcher cooperates with the current KeyboardFocusManager in the targeting and dispatching of all KeyEvents.
KeyEventPostProcessor | A KeyEventPostProcessor cooperates with the current KeyboardFocusManager in the final resolution of all unconsumed KeyEvents.
LayoutManager | Defines the interface for classes that know how to lay out `Container`s.
LayoutManager2 | Defines an interface for classes that know how to layout Containers based on a layout constraints object.
Shape | The `Shape` interface provides definitions for objects that represent some form of geometric shape.
Stroke | The `Stroke` interface allows a `Graphics2D` object to obtain a `Shape` that is the decorated outline, or stylistic representation of the outline, of the specified `Shape`.
Transparency | The `Transparency` interface defines the common transparency modes for implementing classes.

Class Summary
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.
AWTEvent | The root event class for all AWT events.
AWTEventMulticaster | A class which implements efficient and thread-safe multi-cast event dispatching for the AWT events defined in the java.awt.event package.
AWTKeyStroke | An `AWTKeyStroke` represents a key action on the keyboard, or equivalent input device.
AWTPermission | This class is for AWT permissions.
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`.
BorderLayout | A border layout lays out a container, arranging and resizing its components to fit in five regions: north, south, east, west, and center.
CardLayout | A `CardLayout` object is a layout manager for a container.
Color | The `Color` class is used encapsulate colors in the default sRGB color space or colors in arbitrary color spaces identified by a `ColorSpace`.
Component | A component is an object having a graphical representation that can be displayed on the screen and that can interact with the user.
Container | A generic Abstract Window Toolkit(AWT) container object is a component that can contain other AWT components.
ContainerOrderFocusTraversalPolicy | A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.
Cursor | A class to encapsulate the bitmap representation of the mouse cursor.
DefaultFocusTraversalPolicy | A FocusTraversalPolicy that determines traversal order based on the order of child Components in a Container.
Dimension | The `Dimension` class encapsulates the width and height of a component (in integer precision) in a single object.
EventQueue | `EventQueue` is a platform-independent class that queues events, both from the underlying peer classes and from trusted application classes.
FlowLayout | A flow layout arranges components in a left-to-right flow, much like lines of text in a paragraph.
FocusTraversalPolicy | A FocusTraversalPolicy defines the order in which Components with a particular focus cycle root are traversed.
Font | The `Font` class represents fonts, which are used to render text in a visible way.
FontMetrics | The `FontMetrics` class defines a font metrics object, which encapsulates information about the rendering of a particular font on a particular screen.
Frame | A `Frame` is a top-level window with a title and a border.
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.
Graphics2D | This `Graphics2D` class extends the `Graphics` class to provide more sophisticated control over graphics operations.
GraphicsConfiguration | The `GraphicsConfiguration` class describes the characteristics of a graphics destination such as a printer or monitor.
GraphicsDevice | The `GraphicsDevice` class describes the graphics devices that might be available in a particular graphics environment.
GraphicsEnvironment | The `GraphicsEnvironment` class describes the collection of `GraphicsDevice` objects and `Font` objects available to a Java(tm) application on a particular platform.
GridBagConstraints | The `GridBagConstraints` class specifies constraints for components that are laid out using the `GridBagLayout` 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.
GridLayout | The `GridLayout` class is a layout manager that lays out a container's components in a rectangular grid.
Image | The abstract class `Image` is the superclass of all classes that represent graphical images.
ImageCapabilities | Capabilities and properties of images.
Insets | An `Insets` object is a representation of the borders of a container.
KeyboardFocusManager | The KeyboardFocusManager is responsible for managing the active and focused Windows, and the current focus owner.
MediaTracker | The `MediaTracker` class is a utility class to track the status of a number of media objects.
Point | A point representing a location in (x, y) coordinate space, specified in integer precision.
Polygon | The `Polygon` class encapsulates a description of a closed, two-dimensional region within a coordinate space.
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.
SystemColor | A class to encapsulate symbolic colors representing the color of native GUI objects on a system.
Toolkit | This class is the abstract superclass of all actual implementations of the Abstract Window Toolkit.
Window | A `Window` object is a top-level window with no borders and no menubar.

Exception Summary
AWTException | Signals that an Absract Window Toolkit exception has occurred.
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.
IllegalComponentStateException | Signals that an AWT component is not in an appropriate state for the requested operation.

Error Summary
AWTError | Thrown when a serious Abstract Window Toolkit error has occurred.

## Package java.awt Description

Contains all of the classes for creating user interfaces and for painting graphics and images. A user interface object such as a button or a scrollbar is called, in AWT terminology, a component. The Component class is the root of all AWT components. See Component for a detailed description of properties that all AWT components share.

Some components fire events when a user interacts with the components. The AWTEvent class and its subclasses are used to represent the events that AWT components can fire. See AWTEvent for a description of the AWT event model.

A container is a component that can contain components and other containers. A con tainer can also have a layout manager that controls the visual placement of components in the container. The AWT package contains several layout manager classes and an interface for building your own layout manager. See Container and LayoutManager for more information.

## Additional Specification

- The AWT Focus Subsystem

Since:
  JDK1.0

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