Drawing in JPanel within JApplet

Question

Hi, having problems drawing in jpanel that is within japplet.
My code follows:
* TestApplet.java
* @author WhooHoo
//<applet code="TestApplet.class" width="400" height="250"></applet>
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Graphics;
import javax.swing.JButton;
public class TestApplet extends javax.swing.JApplet implements ActionListener {
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel1;
private Graphics g;
private javax.swing.JButton btnTest;
/** Creates new form Cafe */
public TestApplet() {
public void init() {
jPanel1 = new javax.swing.JPanel();
btnTest = new javax.swing.JButton();
jPanel2 = new javax.swing.JPanel();
btnTest.setText("test");
jPanel1.add(btnTest);
getContentPane().add(jPanel1, java.awt.BorderLayout.NORTH);
jPanel2.setBorder(new javax.swing.border.TitledBorder("Draw"));
getContentPane().add(jPanel2, java.awt.BorderLayout.CENTER);
btnTest.addActionListener(this);
jPanel2.setOpaque(false);
g=jPanel2.getGraphics();
/** Invoked when an action occurs.
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand().equalsIgnoreCase("test"))
System.out.println("test");
g.setColor(java.awt.Color.BLACK);
     g.drawString("testing",50,50);
     g.drawString("testing",50,100);
     g.drawString("testing",50,150);
     g.drawString("testing",50,200);
     g.drawString("testing",50,250);
public void destroy()
g.dispose();
When this code is run the applet seems to run fine but when the button is pressed, nothing is drawn in jpanel. Can anyone see what the problem is and suggest a fix. I need to be able to pass graphics obj around to other methods to draw in the other methods also. Testing will not dispaly anywhere in applet or frame.
plz email or post any suggestions.

Answer 1

but if I can get this to workYou can get this to work, here is the working code:
import java.awt.event.*;
import java.awt.Graphics;
import javax.swing.*;
import java.awt.*;
public class TestApplet extends JApplet implements ActionListener {
     private JPanel jPanel2,jPanel1;
     private javax.swing.JButton btnTest;
     String string1 = "";
     public TestApplet() {
     public void init() {
          jPanel1 = new JPanel();
          btnTest = new JButton();
          jPanel2 = new JPanel(){
               public void paintComponent(Graphics g) {
                    g.setColor(java.awt.Color.BLACK);
                    g.drawString(string1,50,50);
                    g.drawString(string1,50,100);
                    g.drawString(string1,50,150);
                    g.drawString(string1,50,200);
                    g.drawString(string1,50,250);
          btnTest.setText("test");
          jPanel1.add(btnTest);     
          getContentPane().add(jPanel1, BorderLayout.NORTH);
          jPanel2.setBorder(new javax.swing.border.TitledBorder("Draw"));
          getContentPane().add(jPanel2, BorderLayout.CENTER);
          btnTest.addActionListener(this);
          jPanel2.setOpaque(false);
     public void actionPerformed(ActionEvent e) {
          if (e.getActionCommand().equalsIgnoreCase("test"))
               System.out.println("test");
               string1 = "testing";
               jPanel2.repaint();
     public void destroy(){}
}Unfortunately all painting to a component must happen inside the paint method. I don't know if what you ask is possible. I try to figure it out. Maybe someone else has an answer.
Pandava