这道猜拳题怎么弄啊，小弟刚学到java常用类。求各位大神帮忙

lz你好

具体代码如下:

import java.math.*;

import java.util.*;

public class GuessFist

{

private int

user,

computer;

public GuessFist()

{

user = 0;

computer = 0;

}

public void setUser()

{

Scanner in = new Scanner(System.in);

System.out.print ("该您出拳\n(1代表剪刀，2为石头，3为布)\n:");

user = in.nextInt();

}

public int getUser()

{

return user;

}

public void setComputer()

{

computer = (int)(Math.random() * 3 + 1);

}

public int getComputer()

{

return computer;

}

public String toString()

{

if(((user+1) % 3) < ((computer+1) % 3))

{

return "电脑出"+computer+"\n你输了>.<";

}

else if(user == computer)

{

return "电脑也是出的"+computer+"\n打平";

}

else

{

return "电脑出"+computer+"\n你赢了^_^";

}

}

public static void main(String[] args)

{

GuessFist g = new GuessFist();

g.setComputer();

g.setUser();

System.out.println (g);

}

}

运行结果:

ps:lz注意要把类文件名写为:GuessFist.java

希望能帮助你哈

import java.util.Random;
import java.util.Scanner;
public class Test
{
    public static void main(String[] args) {
        Random random = new Random();
        System.out.println("开始游戏......");
        Scanner scanner = new Scanner(System.in);
        int computer = 0;
        while(true)
        {
            System.out.print("电脑出：");
            sleep();
            computer = random.nextInt(3) + 1;
            System.out.println(getName(computer));
            System.out.print("请出拳:\n 1.剪刀;\n 2.石头;\n 3.布;\n 你出：");
            sleep();
               
            try
            {
                   
                int youNum = scanner.nextInt();
                if(youNum >=1 && youNum <=3)
                {
                    System.out.println("你出的是：" + getName(youNum));
                    sleep();
                    int result = isYouWin(computer, youNum);
                    if(result == -1)
                    {
                        System.out.println("悲剧！你输了");
                    }
                    else if(result == 0)
                    {
                        System.out.println("以和为贵，以和为贵！");
                    }
                    else if(result == 1)
                    {
                        System.out.println("恭喜恭喜，You Win！");
                    }
                }
                else
                {
                    System.out.println("别耍赖，你乱出！");
                }
            }
            catch(Exception e)
            {
                System.out.println("别耍赖，你乱出！");
            }
            System.out.print("继续游戏？n/退出，任意键继续:");
            if("n".equals(scanner.next()))
            {
                System.out.println("退出游戏！");
                System.exit(1);
            }
            System.out.println("------------------------");
        }
           
    }
    static int isYouWin(int computer, int youNum)
    {
        switch(computer)
        {
        case 1 :
            switch (youNum) {
            case 1:
                return 0;
            case 2:
                return 1;
            case 3:
                return -1;
            default:
                break;
            }
            break;
        case 2 :
            switch (youNum) {
            case 1:
                return -1;
            case 2:
                return 0;
            case 3:
                return 1;
            default:
                break;
            }
            break;
        case 3 :
            switch (youNum) {
            case 1:
                return 1;
            case 2:
                return -1;
            case 3:
                return 0;
            default:
                break;
            }
            break;
        }
        return 0;
    }
    static void sleep()
    {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    static String getName(int cmd)
    {
        String name = null;
        switch (cmd) {
        case 1:
            name = "剪刀";
            break;
        case 2:
            name = "石头";
            break;
        case 3:
            name = "布";
            break;
        default:
            break;
        }
        return name;
    }
}