import java.applet.*; 
import java.awt.*; 
import java.awt.event.*; 

public class MyApplet extends Applet implements MouseMotionListener 
{ 
  Graphics MyGraphics; 

  public void init() 
  { 
    MyGraphics = getGraphics(); 
    addMouseMotionListener(this); 
  } 

  public void mouseDragged(MouseEvent ev) 
  { 
    MyGraphics.drawLine(ev.getX(), ev.getY(), ev.getX(), ev.getY()); 
  } 

  public void mouseMoved(MouseEvent ev) { } 
}