java - 绞刑吏游戏中的 ArrayIndexOutOfBoundsException 错误

Question

我是 Java 新手，对于我的 AP 计算机科学类(class)，我们正在创建一个刽子手游戏。

按照我的方法guessCheck ，我有一个增强的 for 循环，检查是否 letterGuess匹配 masterWord 中的任何字母。如果匹配，则替换 censoredWord 的索引与 letterGuess 。给我带来问题的代码行是 censoredWord[x] = letterGuess; 。为什么会抛出 ArrayIndexOutOfBoundsException 错误？

public class Hangman {

    static String[] wordList = new String[]{"wait", "release", "important", "mark", "electric", "defective", "poke",
        "blue", "beef", "spring", "hurt", "orange", "happy", "zealous", "flowery", "accurate", "brake", "title",
        "festive", "wrathful", "scissors", "peaceful", "finicky", "shape", "soothe", "head", "spotted", "needless",
        "time", "abundant", "humdrum", "mouth", "trot", "bounce", "thank", "avoid", "shocking", "minor", "secret"};

    static int lives = 5;
    static String placeholder = wordList[(int) (Math.random() * wordList.length)];
    static char[] MasterCopyWord = placeholder.toCharArray();
    static String playerName;
    static char censoredWord[] = new char[placeholder.length()];
    static boolean didIWin = false;
    static char[] guessedChars = new char[26];

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        initGame();

        // game starting screen and info
        System.out.println("Enter your name:");
        String playerName = sc.nextLine();
        System.out.println("Hello " + playerName
                               + ", you are playing Hangman where you try to guess a random word. You have 5 lives.");
        // Game start text
        System.out.println("The game will start! Guess the word by typing a one letter at a time!");
        System.out.println("Guess your " + MasterCopyWord.length + " letter word!");
        System.out.println(censoredWord);
        System.out.print("Cheat: Chosen word is ");
        System.out.println(placeholder);
        System.out.println("Guessed Letters:" + new String(guessedChars));

        // game loop
        while (!didIWin) {
            char guess = sc.next().charAt(0);
            System.out.println("Guessed Letters:" + new String(guessedChars));
            System.out.print("Cheat: Chosen word is ");
            System.out.println(placeholder);
            guessCheck(guess);
            System.out.println(censoredWord);
        }
    }

    // check if letterGuess is correct
    public static void guessCheck(char letterGuess) {

        for (char y : guessedChars) {
            if (guessedChars[y] == '\u0000') {
                guessedChars[y] = letterGuess;
            }
        }

//iterates through masterWord, replacing any
//matching letters in censoredWord
        for (char x : MasterCopyWord) {
            if (x == letterGuess) {
                censoredWord[x] = letterGuess;

            } else {
                lives--;
            }

            // check for lives
            boolean wordMatch = Arrays.equals(MasterCopyWord, censoredWord);
            if (lives <= 0) {
                System.out.println("You lost!");
                System.exit(0);
            } else if (wordMatch) {
                System.out.println("Congrats " + playerName
                                       + "! You correctly guessed the word! The game will now terminate");
                didIWin = true;
            }
        }
    }

    public static void initGame() {
        // makes copy of chosen word and censors it
        for (int x = 0; x < placeholder.length(); x++) {
            censoredWord[x] = '*';
        }
    }
}

Answer 1

'x'是猜测的字符(char类型)，不能用作字符串中的索引(这是数字而不是字符)。您需要知道索引才能在您的审查词中替换它。也许而不是

for(char x: MasterCopyWord)

您应该以数字方式迭代单词

for(int i = 0; i < MasterCopyWord.length(); i++) {
    if( MasterCopyWord[i] == letterGuess) {
       censoredWord[i] = letterGuess;
    } else {...