目录
一、效果
二、教程
三、代码
一、效果
首先我们先看效果，左上角的分数是用来记录我们打对了多少字母。字母是从上面开始往下落。每打对一个字母，分数增加，增加到一定分数后，字母下落的速度也会增加。(效果是动态的)
这是不是一个简单的打字小游戏呢？
二、教程
1、使用IDEA搭建一个项目，项目名称：Words（可根据自己的喜好）
具体搭建过程可看博文用IDEA构建一个简单的Java程序范例，这里就不详细说了。
2、Word.class
（1）导入包
import ponent;import javax.swing.JFrame;
（2）主函数
在这里我的panel大小设置的是800*600，大家可以根据自己的喜好设置的更大一些。
public static void main(String[] args) {JFrame frame = new JFrame("打字游戏");WordPanel panel = new WordPanel();frame.add(panel);Thread t = new Thread(panel);t.start();panel.addKeyListener(panel);panel.setFocusable(true);frame.setSize(800, 600);frame.setLocationRelativeTo((Component)null);frame.setDefaultCloseOperation(3);frame.setVisible(true);}
3、WordPanel.class
（1）导入包
import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import javax.swing.JPanel;
（2）类的继承，接口的实现
JPanel类：面板组件，非顶层容器KeyListener：键盘监听接口
public class WordPanel extends JPanel implements Runnable, KeyListener{}
（3）数据类型的定义
xx, yy：int，为字母的坐标words：charcolor：Colorscore：int，为打字的分数speed：int，为字母的下落速度
int[] xx = new int[10];int[] yy = new int[10];char[] words = new char[10];Color[] colors = new Color[10];int score = 0;int speed = 10;
（4）画布函数WordPanel()
for循环，每次10个字母，字母出现位置随机，字母的颜色也随机，出现的字母也随机，总之，都是随机。
public WordPanel() {for(int i = 0; i < 10; ++i) {this.xx[i] = (int)(Math.random() * 800);this.yy[i] = (int)(Math.random() * 600);this.colors[i] = this.randomColor();this.words[i] = (char)((int)(Math.random() * 26 + 65));}}
（5）画笔函数paint()
画笔名称g字母的字体，微软雅黑，大小为28
public void paint(Graphics g) {super.paint(g);Font ft = new Font("微软雅黑", 1, 28);g.setFont(ft);g.drawString("分数" + this.score, 50, 50);for(int i = 0; i < 10; ++i) {g.setColor(this.colors[i]);g.drawString(String.valueOf(this.words[i]), this.xx[i], this.yy[i]);}}
（6）线程函数run()
for循环，如果超出下边界，使yy = 0，即重新生成新的字母
public void run() {while(true) {for(int i = 0; i < 10; ++i) {this.yy[i]++;if (this.yy[i] > 600) {this.yy[i] = 0;}}try {Thread.sleep((long)this.speed);} catch (InterruptedException var2) {var2.printStackTrace();}this.repaint();}}
（7）按键函数KeyPressed()
如果我们按键的字母和画布上的字母匹配，则该字母“消失”：xx = (int)(Math.random() * 26 + 65); yy = 0分数score + 1如果我们的分数在 5 - 10：speed = 5如果分数大于10：speed = 1
public void keyPressed(KeyEvent e) {for(int i = 0; i < 10; ++i) {if (e.getKeyCode() == this.words[i]) {this.xx[i] = (int)(Math.random() * 800);this.yy[i] = 0;this.words[i] = (char)((int)(Math.random() * 26 + 65));++this.score;break;}}if (this.score > 5 && this.score < 10) {this.speed = 5;} else if (this.score > 10) {this.speed = 1;}this.repaint();}
（8）颜色函数randomColor()
public Color randomColor() {int R = (int)(Math.random() * 255);int G = (int)(Math.random() * 255);int B = (int)(Math.random() * 255);Color color = new Color(R, G, B);return color;}
三、代码
1、Word.class
package Words;import ponent;import javax.swing.JFrame;public class Word {public static void main(String[] args) {JFrame frame = new JFrame("打字游戏");WordPanel panel = new WordPanel();frame.add(panel);Thread t = new Thread(panel);t.start();panel.addKeyListener(panel);panel.setFocusable(true);frame.setSize(800, 600);frame.setLocationRelativeTo((Component)null);frame.setDefaultCloseOperation(3);frame.setVisible(true);}}
2、WordPanel.class
package Words;import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import javax.swing.JPanel;public class WordPanel extends JPanel implements Runnable, KeyListener{int[] xx = new int[10];int[] yy = new int[10];char[] words = new char[10];Color[] colors = new Color[10];int score = 0;int speed = 10;public WordPanel() {for(int i = 0; i < 10; ++i) {this.xx[i] = (int)(Math.random() * 800);this.yy[i] = (int)(Math.random() * 600);this.colors[i] = this.randomColor();this.words[i] = (char)((int)(Math.random() * 26 + 65));}}public Color randomColor() {int R = (int)(Math.random() * 255);int G = (int)(Math.random() * 255);int B = (int)(Math.random() * 255);Color color = new Color(R, G, B);return color;}public void paint(Graphics g) {super.paint(g);Font ft = new Font("微软雅黑", 1, 28);g.setFont(ft);g.drawString("分数" + this.score, 50, 50);for(int i = 0; i < 10; ++i) {g.setColor(this.colors[i]);g.drawString(String.valueOf(this.words[i]), this.xx[i], this.yy[i]);}}public void run() {while(true) {for(int i = 0; i < 10; ++i) {this.yy[i]++;if (this.yy[i] > 600) {this.yy[i] = 0;}}try {Thread.sleep((long)this.speed);} catch (InterruptedException var2) {var2.printStackTrace();}this.repaint();}}public void keyTyped(KeyEvent e) {}public void keyPressed(KeyEvent e) {for(int i = 0; i < 10; ++i) {if (e.getKeyCode() == this.words[i]) {this.xx[i] = (int)(Math.random() * 800.0D);this.yy[i] = 0;this.words[i] = (char)((int)(Math.random() * 26 + 65));++this.score;break;}}if (this.score > 5 && this.score < 10) {this.speed = 5;} else if (this.score > 10) {this.speed = 1;}this.repaint();}public void keyReleased(KeyEvent e) {}}
