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IntroExample.javaAPI DocExample3328Thu Oct 24 20:14:24 BST 2002None

IntroExample

public class IntroExample extends JMenuBar

Fields Summary
String[]
fileItems
String[]
editItems
char[]
fileShortcuts
char[]
editShortcuts
Constructors Summary
public IntroExample()


      

        JMenu fileMenu = new JMenu("File");
        JMenu editMenu = new JMenu("Edit");
        JMenu otherMenu = new JMenu("Other");
        JMenu subMenu = new JMenu("SubMenu");
        JMenu subMenu2 = new JMenu("SubMenu2");

        //  Assemble the File menus with mnemonics
        ActionListener printListener = new ActionListener() {
              public void actionPerformed(ActionEvent event) {
                System.out.println("Menu item [" + event.getActionCommand() +
                                   "] was pressed.");
              }
            };
        for (int i=0; i < fileItems.length; i++) {
            JMenuItem item = new JMenuItem(fileItems[i], fileShortcuts[i]);
            item.addActionListener(printListener);
            fileMenu.add(item);
        }

        //  Assemble the File menus with keyboard accelerators
        for (int i=0; i < editItems.length; i++) {
            JMenuItem item = new JMenuItem(editItems[i]);
            item.setAccelerator(KeyStroke.getKeyStroke(editShortcuts[i],
                Toolkit.getDefaultToolkit().getMenuShortcutKeyMask(), false));
            item.addActionListener(printListener);
            editMenu.add(item);
        }

        //  Insert a separator in the Edit Menu in Position 1 after "Undo"
        editMenu.insertSeparator(1);

        //  Assemble the submenus of the Other Menu
        JMenuItem item;
        subMenu2.add(item = new JMenuItem("Extra 2"));
        item.addActionListener(printListener);
        subMenu.add(item = new JMenuItem("Extra 1"));
        item.addActionListener(printListener);
        subMenu.add(subMenu2);

        //  Assemble the Other Menu itself
        otherMenu.add(subMenu);
        otherMenu.add(item = new JCheckBoxMenuItem("Check Me"));
        item.addActionListener(printListener);
        otherMenu.addSeparator();
        ButtonGroup buttonGroup = new ButtonGroup();
        otherMenu.add(item = new JRadioButtonMenuItem("Radio 1"));
        item.addActionListener(printListener);
        buttonGroup.add(item);
        otherMenu.add(item = new JRadioButtonMenuItem("Radio 2"));
        item.addActionListener(printListener);
        buttonGroup.add(item);
        otherMenu.addSeparator();
        otherMenu.add(item = new JMenuItem("Potted Plant",
                                    new ImageIcon("image.gif")));
        item.addActionListener(printListener);

        //  Finally, add all the menus to the menu bar
        add(fileMenu);
        add(editMenu);
        add(otherMenu);
    
Methods Summary
public static voidmain(java.lang.String[] s)

        JFrame frame = new JFrame("Simple Menu Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setJMenuBar(new IntroExample());
        frame.pack();
        frame.setVisible(true);