// Menu02.java  2013.5.11 Minoru HATADA
// 階層メニュー
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Menu02 extends JFrame implements ActionListener {

    public Menu02(String title){
        setTitle(title);
        setBounds(100, 100, 300, 120);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JMenuBar menubar = new JMenuBar();

        JMenu menu1 = new JMenu("Menu 1(X)");
        JMenu menu2 = new JMenu("Menu 2(Y)");
	menu1.setMnemonic('X'); // Alt + Xで呼び出し
	menu2.setMnemonic('Y');
        menubar.add(menu1);
        menubar.add(menu2);

        JMenuItem mi11 = new JMenuItem("menu 1.1(A)");
        JMenu mi12 = new JMenu("menu 1.2(B)");
        JMenuItem mi121 = new JMenuItem("menu 1.2.1(&F)");
        JMenuItem mi122 = new JMenuItem("menu 1.2.2(&G)");
        JMenuItem mi13 = new JMenuItem("menu 1.3(C)");
        JMenuItem mi21 = new JMenuItem("menu 2.1(D)");
        JMenuItem mi22 = new JMenuItem("menu 2.2(E)");

	mi11.setMnemonic('A');
	mi12.setMnemonic('B');
	mi121.setMnemonic('F');
	mi122.setMnemonic('G');
	mi13.setMnemonic('C');
	mi21.setMnemonic('D');
	mi22.setMnemonic('E');

        mi11.addActionListener(this);
        mi121.addActionListener(this);
        mi122.addActionListener(this);
        mi13.addActionListener(this);
        mi21.addActionListener(this);
        mi22.addActionListener(this);

        menu1.add(mi11);
        mi12.add(mi121);
        mi12.add(mi122);
        menu1.add(mi12);
        menu1.add(mi13);
        menu2.add(mi21);
        menu2.add(mi22);

        setJMenuBar(menubar);
    }

    public void actionPerformed(ActionEvent e) {
      	JOptionPane.showMessageDialog(null, "[" + e.getActionCommand() + "]が選択されました");
    }

    public static void main(String[] args) {
        new Menu02("Menu Test").setVisible(true);
    }
}