第十三章 人机猜拳事例

public class Computer {
String name = "电脑";// 名字
int score = 0;// 积分
public int showFist() {
//产生随机数
int show = (int) ((Math.random()*10)%3+1); // 产生随机数,表示电脑出拳
//输出出拳结果并返回
switch (show) {
case 1:
System.out.println(name+"出拳：剪刀");
break;
case 2:
System.out.println(name+"出拳：石头");
break;
case 3:
System.out.println(name+"出拳：布");
break;
}

return show;
}

public class Person {
String name = "匿名"; //名字
int score = 0; //积分

public int showFist(){
//接收用户的选择
Scanner input = new Scanner(System.in);
System.out.print(" 请出拳(1.剪刀2.石头3.布):");
int show = input.nextInt();
//输出出拳结果，并且返回
switch (show) {
case 1:
System.out.println("你出拳：剪刀");
break;
case 2:
System.out.println("你出拳：石头");
break;
case 3:
System.out.println("你出拳：布");
break;
}
return show;

}

import java.util.Scanner;

public class Game {
Person person ; //用户

Computer computer;//人机
int count;// 对战次数

public void inital(){
person = new Person();
computer = new Computer();
count = 0;
}
//开始游戏
public void startGame(){
System.out.println("-------------欢迎进入猜拳游戏---------------");
System.out.println();
System.out.println("******************************************");
System.out.println(" ** 猜拳，开始 **");
System.out.println("******************************************");
System.out.println();
System.out.println("出拳规则：1.剪刀2.石头3.布");
Scanner input = new Scanner(System.in);
String exit="n";//退出系统
do {
inital();//初始化
//选择对手
System.out.print("选择你的对手(1.刘备2.孙权3.曹操):");
int role = input.nextInt();
switch (role) {
case 1:
computer.name="刘备";
System.out.println("你选择了"+ computer.name+"对战");
break;
case 2:
computer.name="孙权";
System.out.println("你选择了"+computer.name+"对战");
break;
case 3:
System.out.println("你选择了"+computer.name+"对战");
break;
default:
System.out.println("输入错误！");
break;
}

//游戏玩家输入姓名
System.out.print("请输入你的姓名:");
person.name=input.next();
System.out.println(person.name+" VS "+computer.name+"对战 ");
//开始游戏
System.out.print("要开始吗?(y/n)");
//开始一局游戏
String start = input.next();
int perFist;//用户出拳
int comFist;//电脑出拳
while (start.equals("y")) {
//出拳
perFist = person.showFist();
comFist = computer.showFist();
//判断胜负
if ((perFist==1&&comFist==1)||(perFist==2&&comFist==2)||(perFist==3&&comFist==3)) {
System.out.println("结果:和局，真衰! ");//平局
}else if ((perFist==2&&comFist==1)||(perFist==3&&comFist==2)||(perFist==1&&comFist==3)) {
System.out.println("结果说：^_^,你输了，真笨! ");//计算机赢
computer.score++;
}else {
System.out.println("结果:恭喜，你赢了! ");//胜利
person.score++;
}
count++;
System.out.print("是否进行下一轮(y/n)");
start = input.next();
}
//显示结果
showResult();
System.out.print(" 要开始下一局吗?(y/n):");
exit = input.next();
System.out.println();

} while (!exit.equals("n"));

System.out.println("系统退出");
}
private void showResult() {
//显示对战次数
System.out.println("------------------------------");
System.out.println(computer.name+" VS "+person.name);
System.out.println("对战次数:"+count);
//显示最终得分
System.out.println(" 姓名 得分");
System.out.println(person.name+" "+person.score);
System.out.println(computer.name+" "+computer.score+" ");

//显示对战结果
int result = 3;
if (result==1) {
System.out.println("结果:打成平手，真衰!");
}else if (result==2) {
System.out.println("结果:恭喜,你赢了!");
}else
{
System.out.println("结果:呵呵，笨笨，下次加油啊!");//计算机赢
}
System.out.println("--------------------------");
}
//计算比赛结果
private int calcResult() {
// TODO Auto-generated method stub
if (person.score == computer.score) {
return 1;//战平
}else if (person.score > computer.score) {
return 2;//游戏玩家赢
}else {
return 3;//惜败
}
}

}

public class Test {
public static void main(String[] args) {
// TODO Auto-generated method stub

Game game = new Game();

game.inital();

game.startGame();
}

}

}

}