Java Swing Tutorial - Java DefaultListSelectionModel .setLeadSelectionIndex (int leadIndex)

Syntax

DefaultListSelectionModel.setLeadSelectionIndex(int leadIndex) has the following syntax.

public void setLeadSelectionIndex(int leadIndex)

Example

In the following code shows how to use DefaultListSelectionModel.setLeadSelectionIndex(int leadIndex) method.

/*ww w  .  j a v a 2  s  .c om*/
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);

    m.setLeadSelectionIndex(1);
    
    
    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);
  }

}