Java 测验（随机排列答案）

Question

我目前正在开发一个用 java 创建测验演示的项目。然而，当我随机排列问题答案选项时，正确答案索引被混淆了，我无法修复它。请帮忙。谢谢你

随机播放方法： 私人字符串[] shuffleOptions（字符串[]选项，int答案）{ 随机运行 = new Random();

    // Answer value before shuffling
    String answerValue = options[answer];
    
    // Shuffle options randomly
    for (int i = options.length - 1; i > 0; i--) {
        int index = ran.nextInt(i + 1);
        String temp = options[index];
        options[index] = options[i];
        options[i] = temp;
    }

    // Find the new correct answer index after shuffling
    for (int i = 0; i < options.length; i++) {
        if (options[i].equals(answerValue)) {
            answerTemp = i;
        }
    }
    
    return options;
 }

使用（在所有问题的 for 循环中）：

public void giveQuiz() {
    Scanner userInput = new Scanner(System.in);
    int userAnswer = 0;
    
    for (int i = 0; i < size; i++) {
         Question currentQuestion = questions[i];
         System.out.println("Question " + (i + 1) + ") : " + currentQuestion.getQuestion());
         String[] shuffledOptions = shuffleOptions(currentQuestion.getOptions(), currentQuestion.getAnswer());
         currentQuestion.setAnswer(answerTemp); // Sets correct answer value to index
         
         for (int x = 0; x < shuffledOptions.length; x++) { // Prints shuffled options
             System.out.println("(" + (x + 1) + ") " + shuffledOptions[x]);
         }
         
         System.out.println("\n Type Answer (1-4): ");
         userAnswer = userInput.nextInt();
         
         if (userAnswer == currentQuestion.getAnswer()) { //Checks for correct answer
             System.out.println("\nCORRECT ANSWER");
             score++;
         }
         else {
             System.out.println("\nWRONG ANSWER");
         }
    }
    
    System.out.println(finalScore());
    userInput.close();
} //end of giveQuiz

输入正确答案的数字 输出不正确

Answer 1

根据您的代码，

answerTemp

是一个全局变量。我认为全局变量的意外修改就是原因。 你能发布完整的代码以便我找出错误的原因吗？