AWT Event Listeners

The Event pstener represent the interfaces responsible to handle events. Java provides us various Event pstener classes but we will discuss those which are more frequently used. Every method of an event pstener method has a single argument as an object which is subclass of EventObject class. For example, mouse event pstener methods will accept instance of MouseEvent, where MouseEvent derives from EventObject.

EventListner interface

It is a marker interface which every pstener interface has to extend.This class is defined in java.util package.

Class declaration

Following is the declaration for java.util.EventListener interface:

pubpc interface EventListener

AWT Event Listener Interfaces:

Following is the pst of commonly used event psteners.