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Monday, December 20, 2010

Swing - JList Event

Here's a code on how to use JList with event:

import javax.swing.*;
import java.awt.*;
import javax.swing.event.*;


public class Main{

    public static void main(String[] args){

        new Main();
    }
  
    public Main(){

        frame = new JFrame("JList Application");

        model = new DefaultListModel();
        model.addElement("Jakarta");
        model.addElement("Denpasar");
        model.addElement("Manila");
        model.addElement("Sydney");

        lCities = new JList(lCities);
        lCities.addListSelectionListener(new
                                     ListSelectionListener(){
            public void valueChanged(ListSelectionEvent lse){
                if(lse.getValueIsAdjusting){
                    Object obj = lCities.getSelectedValue();
                    JOptionPane.showMessageDialog(frame,
                                               obj.toString);
            }
        });

        frame.add(new JScrollPane(lCities));
        frame.setSize(400, 300);
        frame.setLocation(200, 100);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }
   
    private JFrame frame;
    private Jlist lCities;
    private DefaultListModel model;
}
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