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e814. Creating a Menu Item That Listens for Changes to Its Selection Status

A menu item can receive notification of selection changes by overriding its menuSelectionChanged() method. See also e808 Creating a JMenuBar, JMenu, and JMenuItem Component.

    JMenuItem item = new JMenuItem("Label") {
        // This method is called whenever the selection status of
        // this menu item is changed
        public void menuSelectionChanged(boolean isSelected) {
            // Always forward the event
            super.menuSelectionChanged(isSelected);
    
            if (isSelected) {
                // The menu item is selected
            } else {
                // The menu item is no longer selected
            }
        }
    };

Related Examples

e808. Creating a JMenuBar, JMenu, and JMenuItem Component
e809. Separating Menu Items in a Menu
e810. Creating a Popup Menu
e811. Creating a Popup Menu with Nested Menus
e812. Forcing a Popup Menu to Be a Heavyweight Component
e813. Getting the Currently Selected Menu or Menu Item
e815. Listening for Changes to the Currently Selected Menu or Menu Item

See also: Actions JButton JCheckBox JComboBox JDesktop and JInternalFrame JFrame, JWindow, JDialog JLabel JList JProgressBar JRadioButton JScrollPane JSlider JSpinner JSplitPane JTabbedPane JToolBar Keystrokes and Input Maps Layout Look and Feel Progress Monitor The Screen Tool Tips UI Default Values

© 2002 Addison-Wesley.