Class Library: CLDC Packages - Java 2 Micro Edition Application Development - page 257

PDAP-Specific Packages

The java.awt , java.awt.event , java.awt.image , javax.microedition.pim and the
additions to the java.io , java.net , java.util packages are available in PDAP only.

The java.awt Package

This package contains all the classes for creating user interfaces and for painting graphics and images
for implementation of user interfaces for PDAP applications.

Interfaces

ActiveEvent ActiveEvent provides an interface for events that know how dispatch
themselves. By implementing this interface, an event can be placed upon
the event queue and its dispatch() method will be called when the
e vent is dispatched, using the EventDispatchThread .
Adjustable The Adjustable interface is used for objects having an adjustable
n umeric value contained within a bounded range of values.
ItemSelectable The ItemSelectable provides an interface for objects containing a set
o f items for which zero or more can be selected.
LayotManager The LayoutManager interface defines methods for classes knowing how
t o layout Containers.
LayoutManager2 LayoutManager2 provides an interface for classes that know how to
layout Containers based on a layout constraints object. It extends the
LayoutManager interface to handle layouts explicitly in terms of
constraint objects that specify how and where components should be
added to the layout.
MenuContainer The MenuContainer interface provides methods for all menu related
c ontainers.

Shape

The Shape interface provides definitions for graphical objects that
r epresent some kind of geometric shapes.

Classes

AWTEvent

The AWTEvent class is the root event for all AWT related
e vents.

AWTEventMulticaster The AWTEventMulsticaster class provides a mechanism for

efficient and thread-safe multi-cast event dispatching for the
AWT events included in the java.awt.event package.

BorderLayout

The BorderLayout lays out a container, arranging and resizing
its components to fit in five regions: north, south, east, west, and
c enter.

Button

The Button class represents a labeled button.

Canvas

The Canvas class 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.

CardLayout

The CardLayout lays out a container, arranging each
component in the container as a card where only one card is
v isible at a time.

Checkbox

The Checkbox class represents a graphical component that can
b e in either an "on" (true) or "off" (false) state.