How to copy image from one jpanel to another jpanel

Hai! I am new to java. In my swings application a problem was arised. that is when i drag an image from one jpanel to another jpanel. the copy of the image will come with the mouse. the original image may not move. only copy of the image will move from one jpanel to another. here is the sample code. how to move the copy of the image from one jpanel to another jpanel.
Please help me.

Code :

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import javax.swing.*; 
import java.awt.*; 
public class test1 { 
 public test1() {
  JFrame frame=new JFrame("Drag");
  Container container=frame.getContentPane();
  JPanel panel=new JPanel(new GridLayout(2,1));
  JPanel panel1=new JPanel(new BorderLayout());
  JPanel panel2=new JPanel();
  JLabel label=new JLabel(new ImageIcon("icons/save.png"));
  panel1.add(label);
  panel1.setBackground(Color.red);
  panel2.setBackground(Color.gray);
  panel.add(panel1);
  panel.add(panel2);
  container.add(panel);
  frame.setSize(300,400);
  frame.setVisible(true);
 }
 /**
 * @param args
 */
 public static void main(String[] args) {
  new test1();
 }
}

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