如何在 Java 中限制 Hangman 中的猜测次数

Question

所以我的代码运行良好。我只需要帮助限制猜测的次数。每次你猜错时，都有一个计数器告诉你还剩多少次猜测。

所以我想将猜测的限制设置为 15。所以每次你做出错误的猜测计数器都会向用户显示（增加 pressure/stress）剩下 14 次猜测，否则你就输了。

这是我的代码：

    import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;

public class Hangman {
    private final static int maxGuesses = 5;


    static ArrayList<String> words = new ArrayList<>();

        static boolean isCorrect;

        public static void main(String[] args) {

            // getting file
            File filename = new File("hangman.txt");
            if (!filename.exists()) {
                System.out.println(filename.getAbsolutePath());
                System.out.println(filename + " does not exist.");
                System.exit(1);
            }
            // reading word file
            try {
                Scanner input = new Scanner(filename);
                while (input.hasNext()) {
                    words.add(input.next());
                }
            } catch (FileNotFoundException ex) {
                ex.printStackTrace();
            }
            // debug: display words
            //System.out.println(words);

            Scanner input = new Scanner(System.in);
            String playStats = "y";
            while (playStats.equals("y")) {
                String word = getWord();
                String hiddenWord = getHiddenWord(word);
                int missCount = 0;


                    while (true) {
                    System.out.print("(Guess) Enter a letter in word " + hiddenWord + " > ");
                    char ch = input.next().charAt(0);

                    if (!isAlreadyInWord(hiddenWord, ch)) {

                        hiddenWord = getGuess(word, hiddenWord, ch);
                        if (missCount>maxGuesses){
                           // Print info on max guesses reached
                         System.out.println("you have reached" + missCount + "you have" + maxGuesses + 
                                 " left");
                           break;
                          }
                        if(word.equals(hiddenWord)) {

                        if (!isCorrect) {
                            System.out.println(ch + " is not in the word.");
                            missCount++;
                        }   
                    else {
                        System.out.println(ch + " is already in word.");
                    }
                        break;
                        } 
                        }
                    }
                System.out.println("The word is " + hiddenWord + " You missed " + missCount + " times");
                System.out.println("Do you want to guess another word? Enter y or n >");
                playStats = input.next();
            }

        }

        public static String getWord() {
            return words.get((int) (Math.random() * words.size()));
        }

        public static String getHiddenWord(String word) {

            String hidden = "";
            for (int i = 0; i < word.length(); i++) {
                hidden += "*";
            }
            return hidden;
        }

        static public String getGuess(String word, String hiddenWord, char ch) {

            isCorrect = false;
            StringBuilder s = new StringBuilder(hiddenWord);
            for (int i = 0; i < word.length(); i++) {

                if (ch == word.charAt(i) && s.charAt(i) == '*') {
                    isCorrect = true;
                    s = s.deleteCharAt(i);
                    s = s.insert(i, ch);
                }
            }
            return s.toString();
        }

        public static boolean isAlreadyInWord(String hiddenWord, char ch) {

            for (int i = 0; i < hiddenWord.length(); i++) {

                if (ch == hiddenWord.charAt(i)) {
                    return true;
                }
            }
            return false;
        }
    }

我假设它与我的 "missCount" 作为计数器有关....但我如何在其中写入 missCount 不能超过 15 次尝试并显示尝试次数？

提前致谢。

Answer 1

请注意，我的建议不是一个优雅的解决方案。

创建一个带有值（例如 15）的静态最终 maxGuesses。
将 while-condition 从 !word.equals(hiddenWord) 更改为 true。这个循环现在永远不会终止 - 除非我们引入 breakstatements.
创建一个新检查 (if-condition) 以查看是否超过了尝试次数（例如 missCount>maxGuesses）。在 if-block 中打印此信息，并添加 break 以退出内部 while。
在 word.equals(hiddenWord) 中创建另一个检查 (if-condition) - 这用于确定是否找到了该词。将找到的单词的信息打印为 if-block 的一部分，并添加 break 语句
两项检查都应该是内部 while-loop.

.

while (true) { 
  if (missedCount>maxGuesses){
   // Print info on max guesses reached
   break;
  }
  // Does the read input stuff
  if (word.equals(hiddenWord)){
   // Print info on word was guessed
   break;
  }
}

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