java.awt

This is a very useful mechanism for avoiding deadlocks.

The target name is the name of the AWT permission (see below).

width

The pen width, measured perpendicularly to the pen trajectory.

end caps

The decoration applied to the ends of unclosed subpaths and dash segments.

An application must subclass the Canvas class in order to get useful functionality such as creating a custom component.

The following code example creates a set of check boxes in a grid layout:

 setLayout(new GridLayout(3, 1));
 add(new Checkbox("one", null, true));
 add(new Checkbox("two"));
 add(new Checkbox("three"));
 

This image depicts the check boxes and grid layout created by this code example:

The button labeled one is in the "on" state, and the other two are in the "off" state.

Exactly one check box button in a CheckboxGroup can be in the "on" state at any given time.

The following picture depicts a menu which contains an instance of CheckBoxMenuItem:

The item labeled Check shows a check box menu item in its "off" state.

When a check box menu item is selected, AWT sends an item event to the item.

Components added to a container are tracked in a list.

A Graphics object encapsulates state information needed for the basic rendering operations that Java supports.

A menu can optionally be a tear-off menu.

The default MenuItem object embodies a simple labeled menu item.

This picture of a menu bar shows five menu items:
The first two items are simple menu items, labeled "Basic" and "Simple". Following these two items is a separator, which is itself a menu item, created with the label "-". Next is an instance of CheckboxMenuItem labeled "Check".

As the inheritance hierarchy implies, a PopupMenu can be used anywhere a Menu can be used.

A Rectangle object's width and height are public fields.

This interface will be revised in the upcoming Java2D project. It is meant to provide a common interface for various existing geometric AWT classes and methods which operate on them.

A text component embodies a string of text.

For example, the following image depicts a frame with four text fields of varying widths.