代码简单&＃xff0c;完全是算法的总结和线程

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package sun;
import java.awt.Color;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
/**
 *
 *&＃64;author huyongjian Oracle(Compus Solution Group)
 * &＃64;Date  2013-7-22
 * &＃64;version 2.0
 * &＃64;since JDK1.6&＃xff08;建议&＃xff09;
   Copy Right Information    COMPUS SOLUTION GROUP
   IDE:Eclipse
   class:SolarSystem 太阳系运动轨迹
 */
public class SolarSystem extends Frame{
                                                                          
    double x , x1 &＃61; 200,x2 &＃61; 200,x3 &＃61; 200,x4 &＃61; 200,x5 &＃61; 200,x6 &＃61; 200,x7 &＃61; 200,x8 &＃61; 200;
    double y , y1 &＃61; 200,y2 &＃61; 200,y3 &＃61; 200,y4 &＃61; 200,y5 &＃61; 200,y6 &＃61; 200,y7 &＃61; 200,y8 &＃61; 200;
    double t &＃61; 0,t1 &＃61; 0,t2 &＃61; 0,t3 &＃61; 0,t4 &＃61; 0,t5 &＃61; 0,t6 &＃61; 0,t7 &＃61; 0,t8 &＃61; 0;
    private Image offScreenImage &＃61; null;
    void loadFrame(){
        this.setSize(900,900);
        this.setLocation(50,50);
        this.setTitle("太阳系");
        this.addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        this.setVisible(true);
//      this.setColor.black);
         new PaintThread().start();
    }
    public void update(Graphics g) {
        if(offScreenImage &＃61;&＃61; null)
            offScreenImage &＃61; this.createImage(900, 900);
                                                                              
        Graphics gOff &＃61; offScreenImage.getGraphics();
        Color oldColor &＃61; gOff.getColor();
        gOff.setColor(Color.GREEN);
        gOff.fillRect(0, 0, 900, 900);
        gOff.setColor(oldColor);
        paint(gOff);
        g.drawImage(offScreenImage, 0, 0, null);
    }
                                                                          
    Image sun &＃61; Toolkit.getDefaultToolkit().getImage("images/sun.jpg");
    Image bg &＃61; Toolkit.getDefaultToolkit().getImage("images/bg.jpg");
    Image mercury &＃61; Toolkit.getDefaultToolkit().getImage("images/Mercury.jpg");
    Image venus &＃61; Toolkit.getDefaultToolkit().getImage("images/Venus.jpg");
    Image earth &＃61; Toolkit.getDefaultToolkit().getImage("images/Earth.jpg");
    Image mars &＃61; Toolkit.getDefaultToolkit().getImage("images/Mars.jpg");
    Image jupiter &＃61; Toolkit.getDefaultToolkit().getImage("images/Jupiter.jpg");
    Image saturn &＃61; Toolkit.getDefaultToolkit().getImage("images/Saturn.jpg");
    Image uranus &＃61; Toolkit.getDefaultToolkit().getImage("images/Uranus.jpg");
    Image neptune &＃61; Toolkit.getDefaultToolkit().getImage("images/Neptune.jpg");
    Image moon &＃61; Toolkit.getDefaultToolkit().getImage("images/moon.jpg");
                                                                          
    public void paint(Graphics g){
        g.setColor(Color.blue);
        g.drawImage(bg , 0 , 0 , null);
        g.drawImage(sun , 435 , 435 , null);
        g.drawOval(401, 415, 88, 60);
        g.drawOval(375, 395, 140, 100);
        g.drawOval(335, 365, 220, 160);
        g.drawOval(285, 335, 320, 220);
        g.drawOval(155, 275, 580, 340);
        g.drawOval(120, 245, 650, 400);
        g.drawOval(80, 210, 730, 470);
        g.drawOval(10, 165, 870, 560);
                                                                              
        t1 &＃61; t1 &＃43; Math.PI / 8.8;         //公转周期为88天
        t2 &＃61; t2 &＃43; Math.PI / 22.5;
        t3 &＃61; t3 &＃43; Math.PI / 36.5;
        t &＃61; t &＃43; Math.PI / 0.1;
        t4 &＃61; t4 &＃43; Math.PI / 68.7;
        t5 &＃61; t5 &＃43; Math.PI / 432.9;
        t6 &＃61; t6 &＃43; Math.PI / 1076.8;
        t7 &＃61; t7 &＃43; Math.PI / 3066.0;
        t8 &＃61; t8 &＃43; Math.PI / 6015.2;
                                                                              
        g.drawImage(mercury , (int)x1 ,(int)y1, null);
        x1 &＃61; 440 &＃43; 44 * Math.cos(t1);
        y1 &＃61; 440 &＃43; 30 * Math.sin(t1);
        g.drawImage(venus , (int)x2 ,(int)y2, null);
        x2 &＃61; 440 &＃43; 70 * Math.cos(t2);
        y2 &＃61; 440 &＃43; 50 * Math.sin(t2);
        g.drawImage(earth , (int)x3 ,(int)y3, null);
        x3 &＃61; 440 &＃43; 110 * Math.cos(t3);
        y3 &＃61; 440 &＃43; 80 * Math.sin(t3);
        g.drawImage(moon , (int)x ,(int)y, null);
        x &＃61; x3 &＃43; 15 * Math.cos(t1);
        y &＃61; y3 &＃43; 15 * Math.sin(t1);
        g.drawImage(mars , (int)x4 ,(int)y4, null);
        x4 &＃61; 440 &＃43; 160 * Math.cos(t4);
        y4 &＃61; 440 &＃43; 110 * Math.sin(t4);
        g.drawImage(jupiter , (int)x5 ,(int)y5, null);
        x5 &＃61; 435 &＃43; 290 * Math.cos(t5);
        y5 &＃61; 435 &＃43; 170 * Math.sin(t5);
        g.drawImage(saturn , (int)x6 ,(int)y6, null);
        x6 &＃61; 428 &＃43; 325 * Math.cos(t6);
        y6 &＃61; 428 &＃43; 200 * Math.sin(t6);
        g.drawImage(uranus , (int)x7 ,(int)y7, null);
        x7 &＃61; 435 &＃43; 365 * Math.cos(t7);
        y7 &＃61; 435 &＃43; 235 * Math.sin(t7);
        g.drawImage(neptune , (int)x8 ,(int)y8, null);
        x8 &＃61; 435 &＃43; 435 * Math.cos(t8);
        y8 &＃61; 435 &＃43; 280 * Math.sin(t8);
    }
    public static void main(String[] args){
        SolarSystem ball &＃61; new SolarSystem();
        ball.loadFrame();
    }
                                                                          
    private class PaintThread extends Thread{
        public void run(){
            while(true){
                repaint();
                try {
                    Thread.sleep(40);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

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