解决Java循环中布尔变量状态未正确更新导致无限循环的问题

public class Lab9_2 {
    public static void main(String[] args) {
        System.out.println("This program plays Rock-Paper-Scissors against the computer.\n"
                         + "When there is a tie, the game will restart until a winner is chosen.");
        boolean gameTie = false; // 循环控制变量，初始为false
        do {
            int CPUchoice = method1(); // 生成电脑出拳
            int userChoiceInt = method2(); // 获取用户出拳

            method3(CPUchoice); // 输出电脑出拳

            method4(CPUchoice, userChoiceInt); // 比较并输出结果，返回是否平局，但返回值被忽略

            // 额外且冗余的平局判断
            if (CPUchoice == userChoiceInt) {
                gameTie = true; // 如果平局，将 gameTie 设为 true
            }
            // 如果不是平局，gameTie 变量的状态不会被此处的 if 语句改变

        } while(gameTie == true); // 循环条件

    }
    // ... 其他方法 method1, method2, method3, method4
}

public static boolean method4(int CPUchoice, int userChoiceInt) {
    boolean gameTie = false; // method4内部的局部变量，与main方法中的gameTie是独立的
    if (CPUchoice == userChoiceInt) {
        System.out.println("It's a tie!");
        gameTie = true;
    }
    // ... 其他胜负判断逻辑，将 gameTie 设为 false
    return gameTie; // 返回平局状态
}

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

public class Lab9_2 {
    public static void main(String[] args) {
        System.out.println("This program plays Rock-Paper-Scissors against the computer.\n"
                         + "When there is a tie, the game will restart until a winner is chosen.");

        boolean gameTie; // 声明 gameTie 变量
        do {
            int CPUchoice = method1(); // 生成电脑出拳
            int userChoiceInt = method2(); // 获取用户出拳

            method3(CPUchoice); // 输出电脑出拳

            // 关键修正：将 method4 的返回值赋值给 gameTie
            gameTie = method4(CPUchoice, userChoiceInt); 

        } while(gameTie); // 循环条件，更简洁地写为 while(gameTie)

        System.out.println("Game over! Thanks for playing."); // 游戏结束提示
    }

    // method1, method2, method3, method4 方法保持不变
    // (为完整性，此处省略，但应包含在实际代码中)

    public static int method1() { /* ... */ return new Random().nextInt(3); } // 假设实现
    public static int method2() { /* ... */ return 0; } // 假设实现
    public static void method3(int CPUchoice) { /* ... */ } // 假设实现
    public static boolean method4(int CPUchoice, int userChoiceInt) {
        boolean isTie = false;
        if (CPUchoice == userChoiceInt) {
            System.out.println("It's a tie!");
            isTie = true;
        } else if ((CPUchoice == 0 && userChoiceInt == 1) || (CPUchoice == 1 && userChoiceInt == 2) || (CPUchoice == 2 && userChoiceInt == 0)) {
            System.out.println("You win!");
            isTie = false;
        } else {
            System.out.println("You lose.");
            isTie = false;
        }
        return isTie;
    }
}