As far as I know, this code is supposed to draw a black circle, and then slowly move it across the screen.. only problem is.. it doesn't move.. and on my computer, if i extend the applets screen, the ball dissapears and moves back if i shrink the applet back down.. if someone can help me id appreciate it..

Code:
// This applet displays a message moving horizontally
// across the screen.

import java.awt.*;
import javax.swing.*;

public class Banner extends JApplet
{

  public void init()
  {
    Container c = getContentPane();
    repaint();
  }

  public void paint(Graphics g)
  {
    int x = 10;
    int y = 10;
    super.paint(g);
    g.fillOval(x, y, 20, 20); 
    x++;
  }
}