1 package com.java7.mystarandmoon.main; 2 import java.awt.*; 3 import javax.swing.JFrame; 4 import javax.swing.JPanel; 5  6  7 public class MyStarAndMoon { 8     public static void main(String[] args) { 9         JFrame w = new JFrame();10         11         w.setTitle("MyStarAndMoon");12         w.setSize(1024, 768);13         14         MyPanel mp = new MyPanel();15         w.add(mp);16         17         Thread t = new Thread(mp);18         t.start();19         20         w.setVisible(true);21         22         23     }24 }25 26 @SuppressWarnings("serial")27 class MyPanel extends JPanel implements Runnable {28     int x[] = new int[300];29     int y[] = new int[300];30     int fx[] = new int[300];31     int fy[] = new int[300];32     33     public MyPanel() {34         for(int i = 0; i < 300; i++) {35             x[i] = (int)(Math.random() * 1024);36             y[i] = (int)(Math.random() * 768);37         }38     }39     public void paint(Graphics g) {40         super.paint(g);41         this.setBackground(Color.BLACK);42         for (int i = 0; i < 100; i++) {43             g.setColor(Color.YELLOW);44             g.setFont(new Font("", (int)(Math.random() * 15), (int)(Math.random() * 15)));45             g.drawString(".", x[i], y[i]);            46         }47         g.setColor(Color.WHITE);48         g.drawOval(30, 30, 100, 100);49         g.fillOval(30, 30, 100, 100);50         g.setColor(Color.BLACK);51         g.drawOval(50, 30, 100, 100);52         g.fillOval(50, 30, 100, 100);53     }54     public void run() {55         while(true) {56             try {57                 Thread.sleep(40);58             } catch (Exception e) {59                 60             }61             repaint();62         }63     }64 }