Applet trouble

Question

Hi,
I am no good at applets but i thorught i would make one.
Wel, i made one that works lovely in Applet viewer but when i run it in Opera it has no animation!
I do have java 2 installed, hence that i can see the applet. But i get no annimation as you see the thread creates 10 boxes and bounces them around the screen. It works perfect in my applet viewer. I also noticed that the mouses didnt move on the screen, i blocked that code out for now, but the solution might fix this. I think its somthing to do with my Paint method, i think its only paingting once and the paint method in my threads are being ignored.
O well, see if you can find the problem, i am not very good at applets but be most grateful for helping me!
package pong;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
import java.util.Random;
public class pong extends JApplet implements Runnable {
  boolean isStandalone = false;
  int[] mouse = {250,250};
  Random r = new Random();
  int[][] pos = {{r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)},
                {r.nextInt(400),r.nextInt(400)}};
  int[][] dir = {{r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1},
                {r.nextInt(1)+1,r.nextInt(1)+1,r.nextInt(50)+1,r.nextInt(50)+1}};
  //Get a parameter value
  public String getParameter(String key, String def) {
    return isStandalone ? System.getProperty(key, def) :
      (getParameter(key) != null ? getParameter(key) : def);
  //Construct the applet
  public pong() {
  //Initialize the applet
  public void init() {
    addMouseMotionListener(new b());
    try  {
      jbInit();
    catch(Exception e)  {
      e.printStackTrace();
  //Component initialization
  private void jbInit() throws Exception {
    this.setSize(new Dimension(500,400));
    /*this.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
      public void mouseMoved(MouseEvent e) {
        this_mouseMoved(e);
    cursorpic();
    new Thread(new ani()).start();
    new Thread(new display()).start();
  public void run() {
  //Get Applet information
  public String getAppletInfo() {
    return "Applet Information";
  //Get parameter info
  public String[][] getParameterInfo() {
    return null;
  //Main method
  public static void main(String[] args) {
    pong applet = new pong();
    applet.isStandalone = true;
    JFrame frame = new JFrame();
    frame.setTitle("Applet Frame");
    frame.getContentPane().add(applet, BorderLayout.CENTER);
    applet.init();
    applet.start();
    frame.setSize(500,400);
    Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
    frame.setLocation((d.width - frame.getSize().width) / 2, (d.height - frame.getSize().height) / 2);
    frame.setVisible(true);
    frame.setBackground(Color.white);
  public void cursorpic() {
    Toolkit kit = Toolkit.getDefaultToolkit();
    Image empty = kit.getImage("empty.gif");
    Cursor blankCursor = getToolkit().createCustomCursor(empty,new Point(0,0),"blankCursor");
    setCursor(blankCursor);
  public class ani implements Runnable {
    public void run() {
      while(true) {
        for (int i = 0;i!=10;i++) {
          if (dir[0] == 1) {
pos[i][0] -= dir[i][2];
else if (dir[i][0] == 2) {
pos[i][0] += dir[i][2];
if (dir[i][1] == 1) {
pos[i][1] -= dir[i][3];
else if (dir[i][1] == 2) {
pos[i][1] += dir[i][3];
if (pos[i][0] > 480) {
dir[i][0] = 1;
else if (pos[i][0] < 0) {
dir[i][0] = 2;
if (pos[i][1] > 380) {
dir[i][1] = 1;
else if (pos[i][1] < 0) {
dir[i][1] = 2;
try {
Thread.sleep(40);
} catch (InterruptedException e) {}
public class display implements Runnable {
public void run() {
while(true) {
try {
Thread.sleep(40);
} catch (InterruptedException e) {}
repaint();
public void paint(Graphics g) {
Graphics2D c = (Graphics2D)g;
c.clearRect(0,0,500,500);
c.setColor(Color.red);
//c.drawLine(mouse[0],mouse[1],mouse[0]+3,mouse[1]+10);
//c.drawLine(mouse[0],mouse[1],mouse[0]+10,mouse[1]+3);
c.setColor(Color.blue);
for (int i = 0;i!=10;i++) {
c.drawRoundRect(pos[i][0],pos[i][1],20,20,10,10);
class b extends MouseMotionAdapter
public void mouseDragged(MouseEvent e)
mouse[0] = e.getX();
mouse[1] = e.getY();
public void mouseMoved(MouseEvent e)
mouse[0] = e.getX();
mouse[1] = e.getY();

Answer 1

wait a minute!
Opera has tricked me into thinking i had java 2!
this is the plugins i have installed to opera:
Java Plug-in     
application/x-java-applet;version=1.1.1     -     
application/x-java-applet;version=1.1.1     -     
application/x-java-applet;version=1.1.1     -     
application/x-java-bean;version=1.1.1     -     
application/x-java-bean;version=1.1.1     -     
application/x-java-bean;version=1.1.1     -     
D:\PROGRAM FILES\Opera75\Program\Plugins\NPJava12.dll
ok, i suppose, the applet veiwer is using a different java so i suppose i need to change the code so that its compatible with the one opera is using? correct?
But then i do not know what code i need to change? any ideas?
Thanxs so far