JmenuItem not going away when I click outside of the applet

Question

Hi guys,
I created a swing applet with JMenu and JMenuItem. If I click within the applet area, the JMenuItem will go away. But when I click out side of the applet, the JMenuItem will not disapear. How to fix this problem?
Thanks in advance.
yj

Answer 1

OK, here are the main parts. First your class must implement the FocusListener interface:
public MyClass extends JFrame implements FocusListener {
next you must add the FocusListener:
myJMenuItem.addFocusListener( this );
and finally you must implement the two methods focusGained and focusLost:
public void focusGained( java.awt.event.FocusEvent fe ) {
Object source = fe.getSource();
if ( source == myJMenuItem ) {
//you don't need to really do anything here.
public void focusLost( java.awt.event.FocusEvent fe ) {
Object source = fe.getSource();
if ( source == myJMenuItem ) {
myJToolBar.repaint(); //Or something to reset it
Essentially you are checking for when the focus is lost on the JMenubar, you might try using the focus listener on the menu item and if that doesn't work they using it on the toolbar, or even the main frame. Once the focus is lost the focusLost method is called you want to reset your menu bar and repaint it.