import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.JPanel; public class MyPanel extends JPanel { public MyPanel() { // Anonymous class. this.addMouseListener(new MouseAdapter() { public void mouseClicked(MouseEvent e) { // Check whether the left mouse button is if (e.getButton() == MouseEvent.BUTTON1) { // get the coordinate System.out.println("(" + e.getX() + "," + e.getY() + ")"); } } }); } }