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java - Java 中的无限 do/while 循环。请指教

问题描述

我是新来的，一般都是编码的。我想要完成的是创建一个简单的猜谜游戏，提示用户输入一个数字，并将该数字与计算机生成的 1 到 100 之间的数字进行核对。我试图让它让玩家可以继续猜测，直到他们得到正确的答案，并显示一个计数器让玩家知道他们做了多少次猜测尝试。问题是，给出正确答案后程序不会终止，我不知道我做错了什么。我将整个代码粘贴在底部以供参考，但我觉得问题出在“determineAnswer”方法中的以下语句中：

} else if (userAnswer == computerNumber) {
        message = "Correct"
                + "\nNumber of Guesses: " + count;
        success++;

我正在尝试使用整数“成功”的值作为终止 do/while 循环的条件，但即使我尝试增加该值，循环也会继续，就好像该值正在不断重置一样。如果是这样的话，我看不出我哪里出错了。同样，我对此很陌生，但我会很感激任何意见。

import javax.swing.JOptionPane;

public class GuessingGame {

    public static void main(String[] args) {
        // generate a random number from 1 to 100
        int computerNumber = (int) (Math.random() * 100 + 1);
        // declare other variables
        int success = 0;
        int count = 0;
        // display the correct guess for testing purposes
        System.out.println("The correct guess would be " + computerNumber);
        // prompt user for a guess
        do {           
            count++;
            String response = JOptionPane.showInputDialog(null,
                    "Enter a guess between 1 and 100");
            int userAnswer = Integer.parseInt(response);
            // display result
            JOptionPane.showMessageDialog(null, determineGuess(userAnswer, computerNumber, success, count));
        } while (success == 0);

    }

    public static String determineGuess(int userAnswer, int computerNumber,int success, int count) {
        String message = null;        
        if (userAnswer <= 0 || userAnswer > 100) {
            message = "Invalid guess"
                    + "\nNumber of Guesses: " + count;
        } else if (userAnswer == computerNumber) {
            message = "Correct"
                    + "\nNumber of Guesses: " + count;
            success++;
        } else if (userAnswer > computerNumber) {
            message = "Incorrect, Too High"
                    + "\nNumber of Guesses: " + count;
        } else if (userAnswer < computerNumber) {
            message = "Incorrect, Too Low"
                    + "\nNumber of Guesses: " + count;
        }
        return message;
    }
}

标签： javaloopsdo-while

解决方案

您不更新成功的值，每次循环运行时，它都会将成功值设为 0，因此会导致无限循环。

int success = 0;
    int count = 0;
    // display the correct guess for testing purposes
    System.out.println("The correct guess would be " + computerNumber);
    // prompt user for a guess
    do {           
        count++;
        String response = JOptionPane.showInputDialog(null,
                "Enter a guess between 1 and 100");
        int userAnswer = Integer.parseInt(response);
        // display result
        JOptionPane.showMessageDialog(null, determineGuess(userAnswer, computerNumber, success, count));
success=1;
    } while (success == 0);

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