import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

public class MenuBars extends JMenuBar implements ActionListener 
{
  String[] editItems = new String[] { "Undo", "Cut", "Copy", "Paste" };
  char[] editShortcuts;

  public MenuBars (String name, char[] editShortcuts) 
  {
    this.editShortcuts = editShortcuts;
    JMenu editMenu = new JMenu(name);
    for (int i=0; i < editItems.length; i++) 
      {
        JMenuItem item = new JMenuItem(editItems[i]);
        item.setAccelerator(KeyStroke.getKeyStroke(editShortcuts[i],
                                                   java.awt.Event.CTRL_MASK, false));
        item.addActionListener(this);
        editMenu.add(item);
      }
    add(editMenu);
  }
  
  public void actionPerformed(ActionEvent event) 
  {
    System.out.println("Menu item [" + event.getActionCommand() +
                       "] was pressed.");
  }
  
  public static void main(String s[]) 
  {
    char[] editShortcuts = { 'Z','X','C','V' };
    JFrame frame = new JFrame("Simple Menu Example");
    frame.setSize(400,400);
    frame.setJMenuBar(new MenuBars("Edit",editShortcuts));
    char[] editShortcuts2 = {'1','2','3','4'};
    frame.add(new MenuBars("Bottom", editShortcuts2), BorderLayout.SOUTH);
    frame.add(new JButton("keyboard accelerators!"), BorderLayout.CENTER);
    frame.setVisible(true);
    System.out.println (frame.getLayout().getClass().getName());
  }
}