Java Swing Tutorial - Java DefaultListSelectionModel .getListeners (Class <T> listenerType)

Syntax

DefaultListSelectionModel.getListeners(Class <T> listenerType) has the following syntax.

public<T extends EventListener> T[] getListeners(Class<T> listenerType)

Example

In the following code shows how to use DefaultListSelectionModel.getListeners(Class <T> listenerType) method.

/* w  w  w.ja  v a 2s.co  m*/
import java.awt.BorderLayout;

import javax.swing.DefaultListSelectionModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class Main extends JPanel {

  String label[] = { "Zero", "One", "Two" };

  JList list;

  public Main() {
    setLayout(new BorderLayout());

    list = new JList(label);
    JScrollPane pane = new JScrollPane(list);

    DefaultListSelectionModel m = new DefaultListSelectionModel();
    
    m.addListSelectionListener(new ListSelectionListener() {
      public void valueChanged(ListSelectionEvent e) {
        System.out.println(e.toString());
      }
    });
    
    list.setSelectionModel(m);

    ListSelectionListener[] lsls = (ListSelectionListener[])(m.getListeners(ListSelectionListener.class));
    
    add(pane, BorderLayout.NORTH);
  }

  public static void main(String s[]) {
    JFrame frame = new JFrame("List Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(new Main());
    frame.pack();
    frame.setVisible(true);
  }

}