Hi,
How to add image to Jwindow. Here is my code:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.text.*;
import java.io.*;
class Project4 extends JWindow
{

Container container;
JTextField jt;
JButton jb;
public Project4(String st, final Image image)
{

container = getContentPane();
container.setLayout(new BorderLayout());
//JTextArea jtp = new JTextArea(st,10,10);

//container.add(sp);
container.add(new JButton("RGUKT Examinations"),BorderLayout.NORTH);
container.add(new JButton("Close"),BorderLayout.SOUTH);
container.add(new JButton(""),BorderLayout.EAST);
container.add(new JButton(""),BorderLayout.WEST);
JTextArea textArea = new JTextArea()
{

{setOpaque(false);}

public void paintComponent (Graphics g)
{
g.drawImage(image, 0, 0, (int)getSize().getWidth(), (int)getSize().getHeight(), this);
//g.drawImage(grayImage, 0, 0, (int)getSize().getWidth(), (int)getSize().getHeight(), this);
super.paintComponent(g);
}
};
JScrollPane sp=new JScrollPane(textArea);
sp.createVerticalScrollBar();
container.add(textArea);

}
public static void main(String[] args) throws IOException
{
FileInputStream fl1= new FileInputStream("Project2.java");
DataInputStream in = new DataInputStream(fl1);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine, st="";
while ((strLine = br.readLine()) != null)
{
st+=strLine;
st+="\n";
}
Toolkit toolkit = Toolkit.getDefaultToolkit();
Image image = toolkit.createImage("bg.jpg");
Project4 demo = new Project4(st,image);
//demo.setDefaultCloseOperation(JWindow.EXIT_ON_CLOSE);
demo.setSize(1200,800);
demo.setVisible(true);
demo.setAlwaysOnTop(true);


}

}


I got Image in center in border Layout. but i didn't get Scrollbar.
Please please help me.
Thanks in advance