3. Connecting event listener with the event source

• Event listener establishes relationship between Swing component and a class that reacts to the user's manipulation of the component.

• For example, JCheckBox responds to user mouse clicks and supports

  
      addItemListener( eventHandler )
  
  

  method.

• The format of "add listener" methods is

  
  	theSourceOfTheEvent.addListenerMethod( theClassThatShouldRespond );
  
  

• For a complete list of components and listeners, see Listeners Supported by Swing Components