Can been JOptionPane.showMessage used in applet?

Question

I am a newer in java programming. i have written a java applet programm. But when i run it, there is something wrong. Can someone tell me where is the problem. Here is the programm.
import javax.swing.*;
import java.awt.*;
import java.applet.*;
public class ChenTest extends JApplet{
String input;
     int output;
int x=0;
     int y=0;//����init��
public void init(){
public void paint(Graphics g){
output = question();
     input =JOptionPane.showInputDialog("enter the result ");
System.out.println("init"+y);
x = Integer.parseInt(input);
     while(x !=output){
     g.drawString("no",25,25);
          input =JOptionPane.showInputDialog("try again ");
          x = Integer.parseInt(input);
          System.out.println(x);
     g.drawString("yes",50,50);
     y++;
public int question()
     int number1,number2,result;
number1 = 1+(int)(Math.random()*9);
number2 =1+(int)(Math.random()*9);
// System.out.println("how "+number1 +"*"+number2);
     System.out.println("chen"+number1+"*"+number2);
     JOptionPane.showMessageDialog(null,"how much is "+number1 +"* "+number2);
return result = number1 * number2;
}

Answer 1

"there is something wrong" does not compute ...
hint: if you use swing in your applet, you need to have at least Java2 plugin running with your browser.