Исходный текст приложения MenuApp представлен в листинге 1.

Листинг 1. Файл MenuApp.java

import java.awt.*;

public class MenuApp { public static void main(String
args[]) { MainFrameWnd frame = new MainFrameWnd("MenuApp");

frame.setSize( frame.getInsets().left + frame.getInsets().right + 320, frame.getInsets().top
+ frame.getInsets().bottom + 240); 

 frame.show();
} }

class MainFrameWnd extends Frame {
MenuBar mbMainMenuBar; Menu mnFile; Menu mnHelp;

public MainFrameWnd(String sTitle) { super(sTitle); 

setSize(400, 200);

 setBackground(Color.yellow);
setForeground(Color.black);

 setLayout(new
FlowLayout());

 mbMainMenuBar = new MenuBar();

 mnFile = new Menu("File");

mnFile.add("New"); mnFile.add("-"); mnFile.add("Exit");

mnHelp = new Menu("Help"); 

 mnHelp.add("Content");
mnHelp.add("-"); mnHelp.add("About");

mbMainMenuBar.add(mnFile); mbMainMenuBar.add(mnHelp);

setMenuBar(mbMainMenuBar); }

 public void
paint(Graphics g) { g.setFont(new Font( "Helvetica", Font.PLAIN, 12));

 g.drawString("Frame window", 10, 70);

 super.paint(g); }

public boolean handleEvent(Event evt) { if(evt.id == Event.WINDOW_DESTROY) { setVisible(false);
System.exit(0); return true; } else return super.handleEvent(evt); }

 public boolean action(Event evt, Object obj) { MenuItem
mnItem;

 if(evt.target instanceof MenuItem)
{ mnItem = (MenuItem)evt.target;

 if(obj.equals("Exit"))
{ System.exit(0); }

 else if(obj.equals("New"))
{ MessageBox mbox;

 mbox = new MessageBox(
"Item New selected", this, "Dialog from Frame", true); mbox.show(); }

 else if(obj.equals("Content")) { MessageBox mbox;

 mbox = new MessageBox( "Item Content selected", this,
"Dialog from Frame", true); mbox.show(); }

else if(obj.equals("About")) { MessageBox mbox; mbox = new MessageBox( "Item About
selected", this, "Dialog from Frame", true); mbox.show(); } else return false;
return true; } return false; } }

class
MessageBox extends Dialog { Label lbMsg; Button btnOK;

public MessageBox(String sMsg, Frame parent, String sTitle, boolean modal) { super(parent,
sTitle, modal); resize(200, 100); setLayout(new GridLayout(2, 1)); lbMsg = new
Label(sMsg, Label.CENTER); add(lbMsg); btnOK = new Button("OK"); add(btnOK); }

 public boolean handleEvent(Event evt) { if(evt.id
== Event.WINDOW_DESTROY) { dispose(); return true; } else return super.handleEvent(evt);
}

 public boolean action(Event evt, Object
obj) { Button btn; if(evt.target instanceof Button) { btn = (Button)evt.target;

 if(evt.target.equals(btnOK)) { dispose(); } else return
false; return true; } return false; } }