Thanx but this dosent really work.
Do I need to do anything else other than set this property. Here is
what I did.

public class MyFileChooser extends JFileChooser
{
 public MyFileChooser()
 {
   super();
   //Added this line
   UIManager.put("FileChooser.readOnly", Boolean.TRUE);
 }
...
...
}

I am using the object of MyFileChooser to display the component.