本文共 1763 字，大约阅读时间需要 5 分钟。
功能：使用双缓冲消除闪烁现象（消除闪烁是应该的，不过处理有点不太好理解）
方法：将是所有的图像都画在虚拟图片上面然后显示出来。
关键代码：
Image offScreenImage = null;public void update(Graphics g) { if(offScreenImage == null){ offScreenImage = this.createImage(800,600); } Graphics gOffScreen = offScreenImage.getGraphics(); Color c = gOffScreen.getColor(); gOffScreen.setColor(Color.GREEN); gOffScreen.fillRect(0, 0, 800, 600); gOffScreen.setColor(c); print(gOffScreen); g.drawImage(offScreenImage, 0, 0, null); } Graphics gOffScreen = offScreenImage.getGraphics();全部代码：
public class TankClient extends Frame { int x = 30; int y = 30; //定义在方法外面 Image offScreenImage = null; public void paint(Graphics g) { Color c = g.getColor(); g.setColor(Color.RED); g.fillOval(x, y, 30, 40); g.setColor(c); y += 5; } public void update(Graphics g) { if(offScreenImage == null){ offScreenImage = this.createImage(800,600); } Graphics gOffScreen = offScreenImage.getGraphics(); Color c = gOffScreen.getColor(); gOffScreen.setColor(Color.GREEN); gOffScreen.fillRect(0, 0, 800, 600); gOffScreen.setColor(c); print(gOffScreen); g.drawImage(offScreenImage, 0, 0, null); } public void lauchFrame(){ this.setSize(800,600); this.setTitle("TankWar"); this.setLocation(80, 60); this.setVisible(true); this.addWindowListener(new WindowAdapter(){ public void windowClosing(WindowEvent e) { System.exit(0); } }); this.setResizable(false); new Thread(new paintThread()).start(); } public static void main(String[] args) { TankClient tc = new TankClient(); tc.lauchFrame(); } private class paintThread implements Runnable { //线程 内部类 为此线程服务 public void run() { while(true){ repaint(); try { Thread.sleep(50); } catch (Exception e) { e.printStackTrace(); } } } } } 转载地址：http://zlrxb.baihongyu.com/