Event handling in JList

hello to all!!!
i am having a problem in JList event handling.Following is my code--
public void valueChanged(ListSelectionEvent  lse)
{index = list.getSelectedIndex();
if(index==0)
                 System.out.println( "index"+index);
                 System.out.println("1st frame now opened");
           JFrame f2=new JFrame();
                JPanel p1=new JPanel();
          f2.getContentPane().add(p1);                    
          JLabel l10=new JLabel("id");
          JTextField t100=new JTextField(20);
          p1.add(l10);
          p1.add(t100);
          p1.add(l11);//declared in constructor
          setDefaultCloseOperation(EXIT_ON_CLOSE);
          f2.setVisible(true);
if(index==1)
          System.out.println("now index is"+index);
          }My problem is that 2 frames get opened whenever index==0 .even the code written in System.out.println() is displayed 2 times on the screen.2 JFrames open up whenever index==0.i want that only 1 JFrame should be opened.and moreover 1 of the JFrame does not contain the JLabel that is declared in the constructor.and when index==1,then The index value is displayed 2 times on the screen.i want that only 1 value should be there.any help would be highly appreciated.thanks in advance.

even after entering if (lse.getValueIsAdjusting())
}index = list.getSelectedIndex();i am having the same value.my problem is not when value of index changes.even if i use only 1 st index (i.e. only click on academic record) than also 2 frames open up.i entered this code after if(index==0) and if if(index==1).but it was of no help.same problem of 2 times each event occuring is there.
urgent Help required.any help would be highly appreciated.thnx in advance

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