Problem with update method

Question

import java.awt.*;
import java.applet.Applet;
public class graphplotter extends Applet
public void init()
repaint();
public void update(Graphics g)
g.drawRect(0,100,100,100);
g.drawLine(50,100,50,200);
g.drawLine(0,150,200,150);
this code above does not draw the rectangle and line
automatically when the applet loads.
how to rectify this.

Answer 1

i used the update method because i wanted to add new images to the existsing background image.if i use the paint method the even the existing backgroung image again has to be painted again.