example14_11.java

不错的教程 适合中高级人员的使用

import java.awt.*;import java.applet.*;
import java.awt.geom.*;
public class Example14_11 extends Applet
{  public void paint(Graphics g)
   {  Graphics2D g_2d=(Graphics2D)g;
      Ellipse2D ellipse1=
      new Ellipse2D. Double (20,80,60,60);
       Ellipse2D ellipse2=
      new Ellipse2D. Double (40,80,80,80);
	   g_2d.setColor(Color.blue);
      Area a1=new Area(ellipse1); Area a2=new Area(ellipse2);
      a1.subtract(a2);             
      AffineTransform trans=new  AffineTransform ();
	  for(int i=1;i<=10;i++)
	   {
		  trans.rotate(36.0*Math.PI/180,95,105);
		  g_2d.setTransform(trans);
		  g_2d.fill(a1);
		  try{Thread.sleep(1000);}
		  catch(InterruptedException e){}
	  }
   }
}