第一个类：
package java12;
import java.util.Scanner;
public class renjicaiquan {
Scanner input = new Scanner(System.in);//定义玩家类的属性 String name; int score; String action; int num;//定义玩家类的猜拳方法 public void show() { System.out.println("\n请出拳：1.剪刀 2.石头 3.布"); boolean a = true; do {num = input.nextInt();
if (num == 1 || num == 2 || num == 3) { switch (num) { case 1: action = "剪刀"; break; case 2: action = "石头"; break; case 3: action = "布"; break; } a = false; System.out.println("你出拳：" + action); } else { System.out.println("输入数字有误,请重新输入"); }} while (a);
} }
第二个类：
package java12;
public class renjicaiquan1 {
//电脑类
String name;
int score; String action; int sum;//定义电脑类猜拳方法
public void show() {
//产生随机数
sum=(int)(Math.random());
switch(sum) { case 1: action="剪刀"; break; case 2: action="石头"; break; case 3: action="布"; break; } System.out.println(name+"出拳"+action); } }
第三个类：
package java12;
import java.util.Scanner;
public class renjicaiquan2 {
//游戏类
Scanner input=new Scanner(System.in);
//定义游戏类的属性
//创建玩家类的对象
renjicaiquan it=new renjicaiquan();
//创建电脑类的对象
renjicaiquan1 is=new renjicaiquan1();
int number; int witch=0;//定义游戏进程的方法
public void process() {
System.out.println("--------------------------欢迎进入游戏世界--------------------------\n"); System.out.println("\t\t********************************"); System.out.println("\t\t**********猜拳，开始*************"); System.out.println("\t\t********************************"); System.out.println(); System.out.println("出拳规则：1.剪刀 2.石头 3.布"); System.out.print("请选择对方角色（1:刘备2:孙权3:曹操）:"); boolean b = true; do { number = input.nextInt(); if (number == 1 || number == 2 || number == 3) { switch (number) { case 1: is.name = "刘备"; break; case 2: is.name = "孙权"; break; case 3: is.name = "曹操"; break;}
b = false; } else { System.out.println("输入数字有误,请重新输入"); } } while (b); System.out.print("请输入你的姓名："); it.name = input.next(); System.out.println(it.name + " VS " + is.name + " 对战\n"); System.out.println("要开始吗？(y/n)"); char answer = input.next().charAt(0); while (answer == 'y') { it.show(); is.show(); if (it.num == is.sum) { System.out.println("和局"); } else if (((it.num == 2) && (is.sum == 1))|| (it.num == 1) && (is.sum == 3)|| ((it.num == 3) && (is.sum == 2))) { System.out.println("你赢了，真棒！"); it.score++; } else { System.out.println("你输了，真笨！"); is.score++; } witch++; System.out.println("\n"); System.out.println("还要继续吗？(y/n)"); answer = input.next().charAt(0); } }/** * 定义游戏结算的方法 */ public void showResult() { System.out.println("********************************"); System.out.println(it.name + " VS " + is.name); System.out.println("对战次数：" + witch); System.out.println("\n姓名\t\t得分"); System.out.println(it.name + "\t\t" + it.score); System.out.println(is.name + "\t\t" + is.score); if (it.score < is.score) { System.out.println("你真笨，下次加油！"); } else if (it.score == is.score) { System.out.println("竟然平局，我们下次一决胜负！"); } else { System.out.println("你真棒！太赞了！！"); } System.out.println("********************************");}
}
测试类：
package java12;
public class renjicaiquan3 {
public static void main(String[] args) { renjicaiquan2 play=new renjicaiquan2(); //创建游戏类的对象 play.process(); //调用游戏类的游戏进程方法 play.showResult(); //调用游戏类的结算方法 }}