Communication between two JApplets on the same web page

Question

Hi Freinds
I have a JSP page containing two applets as follows :-
<jsp:plugin type="applet" code="TreePageJavaClass.class" codebase="/MYOA" width="200" height="300" name="Applet1">
</jsp:plugin>
<jsp:plugin type="applet" code="TreePageJavaClass2.class" codebase="/MYOA" name="Applet2" width="200" height="300">
</jsp:plugin>
First applet extends JApplet class and has a tree constructed using swing.
Second applet extends Applet class.
Now I want to call a method in second applet on selecting a particular tree node on first applet. I can call method on second applet from first applet when both extends Applet class (not JApplet)
So please tell me what's the problem here and how it can be solved.
Thanks

Answer 1

First Applet :-
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import java.applet.*;
public class TreePageJavaClass extends JApplet {
JTree tree;
JTextField jtf;
Container contentPane;
public void init() {
contentPane = getContentPane();
contentPane.setLayout(new BorderLayout());
DefaultMutableTreeNode top = new DefaultMutableTreeNode("MakeYourOwnAds");
DefaultMutableTreeNode a = new DefaultMutableTreeNode("User1");
top.add(a);
DefaultMutableTreeNode a1 = new DefaultMutableTreeNode(getParameter("param1"));
a.add(a1);
DefaultMutableTreeNode a2 = new DefaultMutableTreeNode(getParameter("param2"));
a.add(a2);
DefaultMutableTreeNode a3 = new DefaultMutableTreeNode(getParameter("param3"));
a.add(a3);
DefaultMutableTreeNode a4 = new DefaultMutableTreeNode(getParameter("param4"));
a.add(a4);
tree = new JTree(top);
int v = ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
int h =ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;
JScrollPane jsp = new JScrollPane(tree, v, h);
contentPane.add(jsp, BorderLayout.CENTER);
jtf = new JTextField("", 20);
contentPane.add(jtf, BorderLayout.SOUTH);
// Anonymous inner class to handle mouse clicks
tree.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent me) {doMouseClicked(me);
void doMouseClicked(MouseEvent me)
TreePath tp = tree.getPathForLocation(me.getX(), me.getY());
TreePageJavaClass2 app = (TreePageJavaClass2)getAppletContext().getApplet("Applet2");
if(tp != null)
     if (tp.toString().equals("[MakeYourOwnAds, User1, Ajay]"))
     jtf.setText(tp.toString());
          if (app == null)
          app.setData("null");
          else
               app.setData("Ajay");
     else
          jtf.setText(tp.toString());
else
jtf.setText("");
Second Applet :-
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class TreePageJavaClass2 extends Applet
private Label msg;
public void init()
setLayout(new BorderLayout());
setBackground(Color.LIGHT_GRAY);
msg = new Label("Applet2 is running...", Label.CENTER);
add(BorderLayout.CENTER, msg);
public void setData(String message)
msg.setText("Selected Node is " + message);
Hope you guys will help me.
Thanks