A complete menu (3)

class MenuButton extends MenuItem {
   MenuButton(String name) {
      super(name);
   }
   public void postEvent(Event evt) {
      if ((evt.id == Event.ACTION_EVENT)
          && action(evt, getLabel()))
            return true;
      return super.postEvent(evt);
   }
   public boolean action(Event evt, Object what) {
      return false;
   }
}