Adding Backgrounds on JPanels

Question

Could anyone help with the following code; I am trying to put two JPanels on a JLayeredPane and have one of them act as background; the code goes like this
/** The game has been implemented as part of the final
project for CSc322
*     @author Zengine Productions version 1
// This is the main frame
import java.lang.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class SpaceBall
//To do the background just draw a JPanel inside
another JPanel just set the opacity of the outside one
to false and let
//it hold all the components of the game
public static void main(String[] args)
//declaring the buttons
JButton test=new JButton("test");
JButton test1=new JButton("test1");
JButton test2=new JButton("test2");
//declaring and setting the properties of the frame
JFrame SpaceBall= new JFrame("Space Ball"); // the
game window
SpaceBall.setSize(700,750);
//declaring the Panels
JLayeredPane bgPanel= new JLayeredPane(); // the
panel that holds the background image
JPanel fgPanel= new JPanel(); // the panel that
holds all the game objects
JPanel topPanel= new JPanel(); // the panel on top
of the game panel
JPanel sidePanel= new JPanel(); // the panel on the
side of the game panel
JPanel lowPanel= new JPanel(); // the panel that
will hold bgPanel and sidepanel
JPanel masterPanel= new JPanel(); // the panel that
holds everything to be added to the JFrame
//adding the buttons to the corresponding panels
fgPanel.add(test1);
sidePanel.add(test2);
topPanel.add(test);
// ImageIcon background= new
ImageIcon("images/background.jpg");
// JLabel backlabel = new JLabel(background);
// bgPanel.add(backlabel, new
Integer(Integer.MIN_VALUE));
backlabel.setBounds(0,0,background.getIconWidth(),background.getIconHeight());
fgPanel.setOpaque(false);
bgPanel.add(fgPanel);
bgPanel.setForeground(Color.white);
//adding bgPanel and sidePanel to lowPanel
lowPanel.setLayout(new GridLayout(1,2));
lowPanel.add(bgPanel);
lowPanel.add(sidePanel);
//adding the Panels to the masterPanel
masterPanel.setLayout(new GridLayout(2,1));
masterPanel.add(topPanel);
masterPanel.add(lowPanel);
//getting the container of SpaceBall and adding the
Panels to it
Container cp=SpaceBall.getContentPane();
cp.add(masterPanel);
//displaying everything
SpaceBall.show();
WindowListener ClosingTheWindow=new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
SpaceBall.addWindowListener(ClosingTheWindow);
Could anyone point out any bug in the code that keeps it from displaying the button on the background Panel!
Thanks

Answer 1

Thanks Wekion but I think the editor messed up the format of my code; below is the exact one that I try to run but never get the result that I seek!
// This is the main frame
import java.lang.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class SpaceBall
//To do the background just draw a JPanel inside another //JPanel just set the opacity of the outside one
//to false and let
//it hold all the components of the game
public static void main(String[] args)
//declaring the buttons
JButton test=new JButton("test");
JButton test1=new JButton("test1");
JButton test2=new JButton("test2");
//declaring and setting the properties of the frame
JFrame SpaceBall= new JFrame("Space Ball");
SpaceBall.setSize(700,650);
//declaring the Panels
JLayeredPane bgPanel= new JLayeredPane();
JPanel fgPanel= new JPanel();
JPanel topPanel= new JPanel();
JPanel sidePanel= new JPanel();
JPanel lowPanel= new JPanel();
JPanel masterPanel= new JPanel();
//adding the buttons to the corresponding panels
fgPanel.add(test1);
sidePanel.add(test2);
topPanel.add(test);
ImageIcon background= new ImageIcon("images/background.jpg");
JLabel backlabel = new JLabel(background);
backlabel.setBounds(0,0,background.getIconWidth(),background.getIconHeight());
backlabel.add(test1);
bgPanel.add(backlabel, new Integer(0));
fgPanel.setOpaque(false);
bgPanel.add(fgPanel, new Integer(100));
bgPanel.moveToFront(fgPanel);
//adding bgPanel and sidePanel to lowPanel
lowPanel.setLayout(new GridLayout(1,2));
lowPanel.add(bgPanel);
lowPanel.add(sidePanel);
//adding the Panels to the masterPanel
masterPanel.setLayout(new GridLayout(2,1));
masterPanel.add(topPanel);
masterPanel.add(lowPanel);
//getting the container of SpaceBall and adding the Panels to it
Container cp=SpaceBall.getContentPane();
cp.add(masterPanel);
//displaying everything
SpaceBall.show();
WindowListener ClosingTheWindow=new WindowAdapter()
public void windowClosing(WindowEvent e)
System.exit(0);
SpaceBall.addWindowListener(ClosingTheWindow);