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

public class ColorApplet extends Applet
{
  public void paint(Graphics g)
  {
    for( int i = 0;i<255;i++ )
    {
      Color c = new Color(i,0,0);
      g.setColor(c);
      g.drawRect(0,i,getWidth(),i);
    }
  }
}