Problem in shuffling the button and puting image on button in the same code

Question

I'm trying to make 16 block puzzel game. The following code is showing desired output when I'm running it in textpad but it's showing the output in eclipse. Please tell me the reason behind it.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;
public class Puzzel extends JFrame{
          JButton[] arr = new JButton[15];
          public Puzzel(){
                    Image image;
                    Toolkit toolkit= Toolkit.getDefaultToolkit();
                    image=toolkit.getImage("icon.jpg");
                    ImageIcon icon=new ImageIcon("icon.jpg");
                    setIconImage(image);
                    setTitle("Puzzal");
                    JMenuItem pic = new JMenuItem("Solved");
                    pic.setMnemonic('a');
                    JMenuItem pict = new JMenuItem("Solved");
                    pict.setMnemonic('a');
                    JPanel jp = new JPanel(new GridLayout(4,4));
                    ArrayList list = new ArrayList();
                       for(int x = 0; x < arr.length; x++)
                          arr[x] = new JButton("Button "+(x+1));
                          list.add(arr[x]);
                    Collections.shuffle(list);
                    for(int x = 0; x < list.size(); x++)
                          jp.add((JButton)list.get(x));
                        getContentPane().add(jp);
                             pack();
           public static void main(String[] args){
                new Puzzel().setVisible(true);}
     }I want to add image on these buttons and I have tried it using the following code but its not running on eclipse but working fine when run through textpad. I dont know how to use it with shuffel.
setLayout(new GridLayout(4,4));
         JButton img1 = new JButton("1.jpg", new ImageIcon("1.jpg"));
          getContentPane().add(img1);

Answer 1

In the future Swing related questions should be posted in the Swing forum.
I have tried it using the following code but its not running on eclipse I have no idea what "not running" means, but I'm assuming you are having trouble reading the image files.
Read the section from the Swing tutorial on [How to Use Icons|http://java.sun.com/docs/books/tutorial/uiswing/TOC.html] for the proper way to read images so that is works in all environments.