// Written by:	Darren Gates & Ray Klefstad
// Date:	January 2000
// School:	U.C. Irvine

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

public class MenusExample
    extends Applet
    implements ActionListener
{
    private TextField myTextField;
    private Frame myFrame;
    
    public void init()
    {
        myFrame = new Frame();
        myFrame.addWindowListener(new Terminator());
        myTextField = new TextField(20);
        add(myTextField);
        myFrame.setBounds(200,200,300,300);
       
        // place myMenuBar at top of myFrame
        MenuBar myMenuBar = new MenuBar();
        myFrame.setMenuBar(myMenuBar);
        
        Menu fileMenu = new Menu("File");
        myMenuBar.add(fileMenu);
        
        Menu editMenu = new Menu("Edit");
        myMenuBar.add(editMenu);
        MenuItem myMenuItem;
        
        myMenuItem = new MenuItem("Open");
        myMenuItem.addActionListener(this);
        fileMenu.add(myMenuItem);

        myMenuItem = new MenuItem("Close");
        myMenuItem.addActionListener(this);
        fileMenu.add(myMenuItem);
        
        myMenuItem = new MenuItem("Undo");
        myMenuItem.addActionListener(this);
        editMenu.add(myMenuItem);
        
        myFrame.show();
    }
    
    public void actionPerformed(ActionEvent e)
    {        
        if (e.getSource() instanceof MenuItem)
            myTextField.setText("Your Choice: " 
            + e.getActionCommand());                
    }
    
    public class Terminator
        extends WindowAdapter
    {
        public void windowClosing(WindowEvent e)
        {
            myFrame.dispose();
            // use System.exit(0) for applications
        }
    }
}