What is adapter class?
An adapter class provides an empty
implementation of all methods in an event listener interface. Adapter classes
are useful when you want to receive and process only some of the events that
are handled by a particular event listener interface. You can define a new
class to act listener by extending one of the adapter classes and implementing
only those events in which you are interested. For example, the MouseMotionAdapter
class has two methods, mouseDragged()and mouseMoved(). The signatures of these
empty are exactly as defined in the MouseMotionListener interface. If you are
interested in only mouse drag events, then you could simply extend
MouseMotionAdapter and implement mouseDragged() .
Blog Author: Vijay Kumar
No comments:
Post a Comment