 
JAVA APPLET
Introduction to
Adapter Classes
Java provides a special feature, called adapter
class, that can simplify the creation of event handlers in certain
situations. An adapter class provides an empty implementation of all
methods in an event listener interface. For example, the MouseMotionAdapter
class has two methods, mouseDragged() and mouseMoved(). The
signature of these empty methods are exactly as defined in the MouseMotionListener
If you are interested in only mouse move events, then you can simply
extend MouseMotionAdapter and implement mouseMoved().
Listener Interfaces
Implemented by Adapter Classes
|
Adapter Classes
|
Listener Interface
|
| ComponentAdapter |
ComponentListener |
| ContainerAdapter |
ContainerListener |
| FocusAdapter |
FocusListener |
| KeyAdapter |
KeyListener |
| MouseAdapter |
MouseListener |
| WindowAdapter |
WindowListener |
| MouseMotionAdapter |
MouseMotionListener |
|
