Java：与电脑剪刀石头布（三局两胜制）

import java.util.Random;
import java.util.Scanner;

public class BreakDemo {

	public static void main(String[] args) {
			System.out.println("三局两胜制");
			String[] arr = {"剪刀","石头","布"};//0 1 2 arr[index]
			Scanner input = new Scanner(System.in);
			//用户赢得次数 电脑赢得次数
			int usrCount = 0;
			int comCount = 0;
			while (true) {
			//1.获取一个数字0~2
			System.out.print("剪刀(0) 石头(1) 布(2):");
			int usr = input.nextInt();
			//2.随机一个数字
			Random random = new Random();
			int com = random.nextInt(3);
			//3.开始比较
			if (usr == com) {
			//平局
			System.out.println("用户是" + arr[usr] + ",电脑是" + arr[com] + ",平局");
			} else if (usr - com == 1 || usr - com == -2) {
			//用户赢

			System.out.println("用户是" + arr[usr] + ",电脑是" + arr[com] + ",用户赢");
			usrCount++;
			} else {
			//电脑赢
			System.out.println("用户是" + arr[usr] + ",电脑是" + arr[com] + ",电脑赢");
			comCount++;
			}
			if (usrCount == 2 || comCount == 2) {
			break;
			}
			}
			if (usrCount == 2) {
			System.out.println("最终，用户胜利！");
			} else {
			System.out.println("最终，电脑胜利！");
			}
	}
}