Question

java飞机大战实现了什么技术

Answer 1

1 package cn.xiaocangtian.Util;
2
3 import java.awt.Frame;
4 import java.awt.Graphics;
5 import java.awt.Image;
6 import java.awt.event.WindowAdapter;
7 import java.awt.event.WindowEvent;
8
9
10 public class MyFrame extends Frame {
11
12 //加载窗口
13 public void launchFrame() {
14 setSize(Constant.GAME_WIDTH, Constant.GAME_HEIGHT); //设置窗口大小
15 setLocation(100, 100); //设置左上角坐标，开始位置, 也就是窗口开始位置
16 setVisible(true); //设置为可见(默认为不可见)
17
18 //启动重画线程
19 new PaintThread().start();
20
21 //匿名内部类---用来关闭窗口
22 addWindowListener(new WindowAdapter() {
23 @Override
24 public void windowClosing(WindowEvent e) {
25 System.exit(0);
26 }
27 });
28
29 }
30
31 //双缓冲技术解决屏幕闪烁
32 private Image offScreenImage = null; //利用双缓冲技术消除闪烁
33 public void update(Graphics g) {
34 if (offScreenImage == null)
35 offScreenImage = this.createImage(Constant.GAME_WIDTH, Constant.GAME_HEIGHT);
36
37 Graphics gOff = offScreenImage.getGraphics();
38
39 paint(gOff);
40 g.drawImage(offScreenImage, 0, 0, null);
41 }
42
43 /**
44 * 定义一个重画窗口的线程类
45 * 是一个内部类(方便访问外部类属性)
46 */
47 class PaintThread extends Thread {
48 public void run() {
49 while (true) {
50 repaint(); //重画
51 try {
52 Thread.sleep(40); //1s = 1000ms
53 } catch (InterruptedException e) {
54 e.printStackTrace();
55 }
56 }
57 }
58 }
59
60 }
复制代码

Answer 2

蝶舞飞花，FJ蝶舞飞花

Answer 3

蝶舞飞花，FJ蝶舞飞花

Answer 4

可以看看《这样学java不枯燥》视频教程，里面有详解