//Override the inherited
        // processMouseEvent method.
        public void processMouseEvent(
                                   MouseEvent e){
          if (e.getID() ==
                       MouseEvent.MOUSE_CLICKED){
            System.out.println(
                              "buttonB clicked");
          }//end if
          //Required of overridden
          // processMouseEvent method.
          super.processMouseEvent(e);
        }//end processMouseEvent
      }//end class definition
    );//end add method call