program that display child Frame Window within an parent in applet.

import java.awt.*;

import java.awt.event.*;

import java.applet.*;

/*

<applet code="AppletFrame" width=300 height=50>

</applet>

*/

// Create a subclass of Frame

class SampleFrame extends Frame {

SampleFrame(String title) {

super(title);

// Create an object to handle window events

 MyWindowAdapter adapter = new MyWindowAdapter(this);

 // register it to receive those events

 addWindowListener(adapter);

 }

 public void paint(Graphics g) {

 g.drawString("This is in Frmae Window", 10, 40);

 } }

 class MyWindowAdapter extends WindowAdapter {

 SampleFrame sampleFrame;

 public MyWindowAdapter(SampleFrame sampleFrame) {

 this.sampleFrame=sampleFrame;

 }

 public void windowClosing(WindowEvent we) {

 sampleFrame.setVisible(false);

 }

 }

 // Create frame window

 public class AppletFrame extends Applet {

 Frame f;

 public void init() {

 f=new SampleFrame("A Frame Window");

 f.setSize(250, 250);

 f.setVisible(true);

 }

 public void start() {

 f.setVisible(true);

 }

 public void stop() {

 f.setVisible(false);

 }

 public void paint(Graphics g) {

 g.drawString("This is in applet window", 10 , 20);

 } }