GUI/swing application doesn't appear under W2K

Question

Hi, all,
I wrote a Java GUI application with JDK1.4.1_01, when I run it on Win2K Professional (SP3) the
GUI doesn't appear without any exception.
But when I ran the same application under XP and Win98, the GUI application run ok and the GUI appears.
What is the problem?
regards,
Adam

Answer 1

First I thought you had several jre's installed and windows used the wrong one when you type java ...
Now I think it has to be someting wrong in your code.
Can you try someting that should work?
Compile and run the following code:
javac testPanel.java
java testPanel
import javax.swing.*;
import java.awt.*;
public class testPanel extends Thread{
     public static void main(String[] args) {
          try{
               // get out of the static context
               new testPanel().start();
               new testPanel().start();
               new testPanel().start();
          }catch(Exception e){
               e.printStackTrace();
     public void run(){
          // Create a container with a flow layout, which arranges its children
          // horizontally
          Panel panel = new Panel();
          // A container can also be created with a specific layout
          panel = new Panel(new FlowLayout(FlowLayout.RIGHT));
          // Add several buttons to the container
          panel.add(new Button("A"));
          panel.add(new Button("B"));
          panel.add(new Button("C"));
          // Create frame with a text area in the center
          Frame frame = new Frame();
          Component comp = new TextArea();
          frame.add(comp, BorderLayout.CENTER);
          // Add the container to the bottom of the frame
          frame.add(panel, BorderLayout.SOUTH);
          // Show the frame
          int width = 300;
          int height = 300;
          frame.setSize(width, height);
          frame.setVisible(true);
}