java - Rock Paper Scissor Lizard Spock 游戏无法运行

Question

因此，当我运行它时，我开始输入值，但在输入值后它不会执行 switch 语句来告诉我谁赢了。我还没有把所有的案例都放好，但我想测试一下，但什么也没发生。我给 y 分配了一个随机值，但它不起作用，所以我只是让它成为人工输入。我最终必须在人类玩电脑的地方做到这一点。

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

public class rock{

    public static void main(String[] args) {
        int x;
        int y;
        Random randomGenerator = new Random();
         Scanner input= new Scanner(System.in);

        System.out.print("Human player: Enter 0 for rock, 1 for scissors, 2 for paper, 3 for lizard, 4 for spock:");
        x=input.nextInt();
        System.out.print("Computer player: Enter 0 for rock, 1 for scissors, 2 for paper, 3 for lizard, 4 for spock:");
        y = input.nextInt();

         switch(x)
            {
                case '0':
                    switch (y)
                    {
                        case '1':
                            System.out.print("Human Wins computer chose scissors!");
                            break;
                        case '2':
                            System.out.println("Human wins computer chose paper!");
                            break;
                        case '0':
                            System.out.println("Draw!");
                            break;
                        case '3':
                            System.out.println("Human Wins with Lizard!");
                            break;
                        case '4':
                            System.out.println("Computer Wins with Spock!");
                            break;
                    }
            }
            switch (x)
            {
                case '1':
                    switch(y)
                    {
                    case '1':
                        System.out.print("Human Wins computer chose scissors!");
                        break;
                    case '2':
                        System.out.println("Human wins computer chose paper!");
                        break;
                    case '0':
                        System.out.println("Draw!");
                        break;
                    case '3':
                        System.out.println("Human Wins with Lizard!");
                        break;
                    case '4':
                        System.out.println("Computer Wins with Spock!");
                        break;
                    }
            }
            switch (x)
            {
                case '2':
                    switch (y)
                    {
                    case '1':
                        System.out.print("Human Wins computer chose scissors!");
                        break;
                    case '2':
                        System.out.println("Human wins computer chose paper!");
                        break;
                    case '0':
                        System.out.println("Draw!");
                        break;
                    case '3':
                        System.out.println("Human Wins with Lizard!");
                        break;
                    case '4':
                        System.out.println("Computer Wins with Spock!");
                        break;
                    }
            }
        }

    }

Answer 1

一些修正后的作品:-1)你不需要多次使用 switch(x) 。2) x 和 y 是 int 所以 case 语句应该像 case 1 而不是 case '1'

public class Rock {

    public static void main(String[] args) {
        int x;
        int y;
        Random randomGenerator = new Random();
         Scanner input= new Scanner(System.in);

        System.out.print("Human player: Enter 0 for rock, 1 for scissors, 2 for paper, 3 for lizard, 4 for spock:");
        x=input.nextInt();
        System.out.print("Computer player: Enter 0 for rock, 1 for scissors, 2 for paper, 3 for lizard, 4 for spock:");
        y = input.nextInt();

         switch(x)
            {
                case 0:
                    switch (y)
                    {
                        case 1:
                            System.out.print("Human Wins computer chose scissors!");
                            break;
                        case 2:
                            System.out.println("Human wins computer chose paper!");
                            break;
                        case 0:
                            System.out.println("Draw!");
                            break;
                        case 3:
                            System.out.println("Human Wins with Lizard!");
                            break;
                        case 4:
                            System.out.println("Computer Wins with Spock!");
                            break;
                    }

            case 1:
                    switch(y)
                    {
                    case 1:
                        System.out.print("Human Wins computer chose scissors!");
                        break;
                    case 2:
                        System.out.println("Human wins computer chose paper!");
                        break;
                    case 0:
                        System.out.println("Draw!");
                        break;
                    case 3:
                        System.out.println("Human Wins with Lizard!");
                        break;
                    case 4:
                        System.out.println("Computer Wins with Spock!");
                        break;
                    }

            case 2:
                    switch (y)
                    {
                    case 1:
                        System.out.print("Human Wins computer chose scissors!");
                        break;
                    case 2:
                        System.out.println("Human wins computer chose paper!");
                        break;
                    case 0:
                        System.out.println("Draw!");
                        break;
                    case 3:
                        System.out.println("Human Wins with Lizard!");
                        break;
                    case 4:
                        System.out.println("Computer Wins with Spock!");
                        break;
                    }

        }

    }
}