How to execute Applet method from jsp?

Question

Hi ,
I have a query.I have a jsp page
on loading the jsp page the applet should be
loaded.And i have a button in my jsp page on clicking
the button a method written in the applet class should
be executed .How can i do this.Iam attaching the
classes also.There r two java files.One is EXPosApplet.java and other is EXPos.java
In the EXPosApplet.java i have a method called
RunNotepad().This method should be executed when i click the
button in my jsp page.Pls provide me with some code to load the applet and execute the method of applet.It is a bit urgent.
Thanks
Naveen
The following is my
EXPos.java class.Following this is my EXPosApplet.java class.
EXPos.java
package SumberPutra.External;
import java.io.*;
public class EXPos extends Object {
* Constructor
public EXPos() {
private static void RunIt(String fileName){
try {
Runtime.getRuntime().exec(fileName);
catch (SecurityException e) {
System.out.println("ExecFile: caught security exception: " + e) ;
catch (IOException ioe) {
System.out.println("ExecFile: caught i/o exception: " + ioe);
public void RunNotepad(){
String fname = "notepad.exe";
RunIt(fname);
EXPosApplet.java
package SumberPutra.External;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class EXPosApplet extends JApplet {
boolean isStandalone = false;
private EXPos expos = new EXPos();
JButton jButton1 = new JButton();
JLabel jLabel1 = new JLabel();
* Constructs a new instance.
* getParameter
* @param key
* @param def
* @return java.lang.String
public String getParameter(String key, String def) {
if (isStandalone) {
return System.getProperty(key, def);
if (getParameter(key) != null) {
return getParameter(key);
return def;
public EXPosApplet() {
* Initializes the state of this instance.
* init
public void init() {
try {
jbInit();
catch (Exception e) {
e.printStackTrace();
private void jbInit() throws Exception {
this.setSize(new Dimension(400, 156));
jButton1.setText("jButton1");
jLabel1.setText("jLabel1");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(ActionEvent e) {
jButton1_actionPerformed(e);
this.getContentPane().add(jButton1, BorderLayout.NORTH);
this.getContentPane().add(jLabel1, BorderLayout.SOUTH);
* start
public void start() {
* stop
public void stop() {
* destroy
public void destroy() {
* getAppletInfo
* @return java.lang.String
public String getAppletInfo() {
return "Applet Information";
* getParameterInfo
* @return java.lang.String[][]
public String[][] getParameterInfo() {
return null;
static {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
catch(Exception e) {
e.printStackTrace();
public void ExecNotepad(){
expos.RunNotepad();
/* void jButton1_actionPerformed(ActionEvent e) {
try
Runtime.getRuntime().exec("notepad.exe");
catch (SecurityException ex) {
// strMsg = "ExecFile: caught security exception: " + e ;
jLabel1.setText("ExecFile: caught security exception: " + ex) ;
catch (IOException ioe) {
// strMsg = "ExecFile: caught i/o exception: " + ioe;
jLabel1.setText("ExecFile: caught i/o exception: " + ioe);

Answer 1

hie Naveen
I don't have time to read your code.
just telling you the way i did it.
I used javascript for this
apply onClick() event on button.
function invokeApplet() {
app = document.applets[0].methodName(param1,param2);
hope this helps
if you still face the problem
I'll look in to your code