Can I have listener on the table header?

[Samuel Chan]

I want to have some event when the user click on the table header.
Any idea?
Thanks.

[Manfred Leonhardt]

Hi Samuel,
Yes, some idea. Replace MouseMotion with MouseClicked and you have a great example.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
public class JTableHeaderListener extends Frame
{
  private JTable table;
  private DefaultTableModel dtm;
  public JTableHeaderListener()
  {
    setSize( 500, 500 );
    dtm = new DefaultTableModel( 5, 5 );
    table = new JTable( dtm );
    JScrollPane sp = new JScrollPane( table );
    add( sp, BorderLayout.CENTER );
    table.getTableHeader().addMouseMotionListener(
      new MouseMotionAdapter()
      {
        public void mouseMoved( MouseEvent me )
        {
          JTableHeader hdr = (JTableHeader)me.getSource();
          hdr.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
        }
      });
  }
  public static void main(String[] args) 
  {
    JTableHeaderListener jhl = new JTableHeaderListener();
    jhl.setVisible( true );
  }
}

Enjoy,
Manfred.