下面是正常工作的代码：

import java.util.Scanner;
import java.util.Random;
public class game {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String[] rps = {"rock","paper","scissors"};
        String computerMove = rps[new Random().nextInt(rps.length)];
        for(int i=0;i<2;i++) {
        System.out.println("Please enter your move (rock, paper or scissors)");
        String playerMove = scanner.nextLine();
        if(playerMove.equals(computerMove)) {
            System.out.println("It's a tie. Computer chose also "+computerMove);
        }
        else if (playerMove.equals("rock")) {
            if (computerMove.equals("scissors")) {
                System.out.println("You've won. Computer chose "+computerMove);
            }
            else {
                System.out.println("You loose. Computer chose "+ computerMove);
            }
        }
        else if (playerMove.equals("paper")) {
            if (computerMove.equals("rock")) {
                System.out.println("You've won. Computer chose "+computerMove);
            }
            else {
                System.out.println("You loose. Computer chose "+computerMove);
            }
        }
        else if (playerMove.equals("scissors")) {
            if (computerMove.equals("paper")) {
                System.out.println("You've won. Computer chose "+computerMove);
            }
            else {
                System.out.println("You loose. Computer chose "+computerMove);
            }
        }

        }
    }

但我还想包括回合，这样用户就可以选择他想玩多少回合：

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

public class game {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String[] rps = {"rock","paper","scissors"};
        String computerMove = rps[new Random().nextInt(rps.length)];
        System.out.println("How many rounds you wanna play?");
        int rounds = scanner.nextInt();
        for(int i=0;i<rounds;i++) {
        System.out.println("Please enter your move (rock, paper or scissors)");
        String playerMove = scanner.nextLine();
        if(playerMove.equals(computerMove)) {
            System.out.println("It's a tie. Computer chose also "+computerMove);
        }
        else if (playerMove.equals("rock")) {
            if (computerMove.equals("scissors")) {
                System.out.println("You've won. Computer chose "+computerMove);
            }
            else {
                System.out.println("You loose. Computer chose "+ computerMove);
            }
        }
        else if (playerMove.equals("paper")) {
            if (computerMove.equals("rock")) {
                System.out.println("You've won. Computer chose "+computerMove);
            }
            else {
                System.out.println("You loose. Computer chose "+computerMove);
            }
        }
        else if (playerMove.equals("scissors")) {
            if (computerMove.equals("paper")) {
                System.out.println("You've won. Computer chose "+computerMove);
            }
            else {
                System.out.println("You loose. Computer chose "+computerMove);
            }
        }

        }
    }

你的文本，那么这个的输出是：你想玩几局？2请输入你的移动（石头，布或剪刀）请输入你的移动（石头，布或剪刀）石头你赢了，电脑选择了剪刀
我期待它能像以前一样平稳运行，但不知何故，与轮系统，它不工作