Item listener for JList

Question

Hi ,
I have a doubt regarding how to add an ItemListener for a JList in
java1.4.
I wud be thankful if someone helps me out with a sample program.
If it is not possible , wtz the reason .

Answer 1

Here's a very basic JList, with a ListSelectionListener
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
class JListDemo extends JFrame implements ListSelectionListener
  DefaultListModel listModel = new DefaultListModel();
  JList list = new JList(listModel);
  public JListDemo()
    super("JList Demo");
    setSize(300,400);
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container window = getContentPane();
    list.addListSelectionListener(this);
    list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    window.add(list);
    setLocation(400,300);
    setVisible(true);
    listModel.addElement("abc");
    listModel.addElement("Hello World");
    listModel.addElement("123");
  public void valueChanged(ListSelectionEvent lse)
    JOptionPane.showMessageDialog(null,list.getSelectedValue().toString());
  public static void main(String args[])
    new JListDemo();
}