implements ListDataListener : ListDataListener « Swing Event « Java Tutorial

1. Java Tutorial
2. Swing Event
3. ListDataListener

import java.awt.BorderLayout;

import javax.swing.DefaultListModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.event.ListDataEvent;
import javax.swing.event.ListDataListener;

class MyListDataListener implements ListDataListener {
  public void contentsChanged(ListDataEvent e) {
      System.out.println("contentsChanged: " + e.getIndex0() +
                 ", " + e.getIndex1()); 
  }
  public void intervalAdded(ListDataEvent e) {
    System.out.println("intervalAdded: " + e.getIndex0() +
                 ", " + e.getIndex1()); 
  }
  public void intervalRemoved(ListDataEvent e) {
    System.out.println("intervalRemoved: " + e.getIndex0() +
                 ", " + e.getIndex1()); 
  }
}


public class UsingListDataListener {
  static String labels[] = { "A", "B", "C", "D", "E", "F", "G" };

  public static void main(String args[]) {
    JFrame frame = new JFrame("Modifying Model");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    // Fill model
    final DefaultListModel model = new DefaultListModel();
    
    model.addListDataListener(new MyListDataListener());
    for (int i = 0, n = labels.length; i < n; i++) {
      model.addElement(labels[i]);
    }
    JList jlist = new JList(model);
    
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    frame.add(scrollPane1, BorderLayout.CENTER);

    frame.setSize(640, 300);
    frame.setVisible(true);
  }
}

15.23.ListDataListener
	15.23.1.	Using ListDataListener to listen
	15.23.2.	implements ListDataListener