import java.awt.*;
import java.awt.event.*;
import com.sun.java.swing.JMenu;
import com.sun.java.swing.JMenuItem;
import com.sun.java.swing.JCheckBoxMenuItem;
import com.sun.java.swing.JRadioButtonMenuItem;
import com.sun.java.swing.ButtonGroup;
import com.sun.java.swing.JMenuBar;
import com.sun.java.swing.ImageIcon;

import com.sun.java.swing.JTextArea;
import com.sun.java.swing.JScrollPane;
import com.sun.java.swing.JFrame;

/*
 * This class exists solely to show you what menus look like.
 * It has no menu-related event handling.
 */
public class MenuLookDemo extends JFrame {
    JTextArea output;
    JScrollPane scrollPane;

    public MenuLookDemo() {
        JMenuBar menuBar;
        JMenu menu, submenu;
        JMenuItem menuItem;
        JCheckBoxMenuItem cbMenuItem;
        JRadioButtonMenuItem rbMenuItem;

        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

        //Add regular components to the window, using the default BorderLayout.
        Container contentPane = getContentPane();
        output = new JTextArea(5, 30);
        output.setEditable(false);
        scrollPane = new JScrollPane(output);
        contentPane.add(scrollPane, BorderLayout.CENTER);

        //Create the menu bar.
        menuBar = new JMenuBar();
        setJMenuBar(menuBar);

        //Build the first menu.
        menu = new JMenu("A Menu");
        menuBar.add(menu);

        //a group of JMenuItems
        menuItem = new JMenuItem("A text-only menu item");
        menu.add(menuItem);
        menuItem = new JMenuItem("Both text and icon", 
                                 new ImageIcon("images/middle.gif"));
        menu.add(menuItem);
        menuItem = new JMenuItem(new ImageIcon("images/middle.gif"));
        menu.add(menuItem);

        //a group of radio button menu items
        menu.addSeparator();
        ButtonGroup group = new ButtonGroup();
        rbMenuItem = new JRadioButtonMenuItem("A radio button menu item");
        rbMenuItem.setSelected(true);
        group.add(rbMenuItem);
        menu.add(rbMenuItem);
        rbMenuItem = new JRadioButtonMenuItem("Another one");
        group.add(rbMenuItem);
        menu.add(rbMenuItem);

        //a group of check box menu items
        menu.addSeparator();
        cbMenuItem = new JCheckBoxMenuItem("A check box menu item");
        menu.add(cbMenuItem);
        cbMenuItem = new JCheckBoxMenuItem("Another one");
        menu.add(cbMenuItem);

        //a submenu
        menu.addSeparator();
        submenu = new JMenu("A submenu");
        menuItem = new JMenuItem("An item in the submenu");
        submenu.add(menuItem);
        menuItem = new JMenuItem("Another item");
        submenu.add(menuItem);
        menu.add(submenu);

        //Build second menu in the menu bar.
        menu = new JMenu("Another Menu");
        menuBar.add(menu);
    }

    public static void main(String[] args) {
        MenuLookDemo window = new MenuLookDemo();

        window.setTitle("MenuLookDemo");
        window.setSize(450, 260);
        window.setVisible(true);
    }
}