Spider
Applet Name: spider.class
Description: Looks like a twelve-sided spider web.
Assignment: Draw an eight-sided spider web with all the concentric lines one color and all the radiating lines another color.

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


public class spider extends Applet {

     double x1,y1,x2,y2;
     int x,y,t,L2,t2;
     Dimension dim;

  public void init() {
      dim=size();
  }

  public void paint(Graphics g) {            
      g.setColor(Color.yellow);
      g.fillRect(0,0,dim.width,dim.height); 
      g.setColor(Color.black);                //CENTER
      for(t=30;t< 361;t+=30)
       {
         t2=30+t;
         for(x=0;x< 10;x++)
          {
           
           x1=x*Math.cos(t*Math.PI/180);
           y1=x*Math.sin(t*Math.PI/180);
           x2=x*Math.cos(t2*Math.PI/180);
           y2=x*Math.sin(t2*Math.PI/180);
           x1*=10;                              //scaling to larger area
           y1*=10;
           x2*=10;                             
           y2*=10;                          
           g.drawLine((int)x1+100,(int)y1+100,(int)x2+100,(int)y2+100);
           g.drawLine((int)x1+100,(int)y1+100,100,100);
          }          
        }
 }
}

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Easy assignment... but good practice working with trig functions.