破折号变成猜字母

Question

my program currently takes a random word and turns into dashes based on how many letters are in the word. I then determine if a letter guessed is in the word, but I was unable to figure out how to have the correctly guessed letter replace the dashes accordingly. I looked through possible solutions on the site, but was unable to have one work for my current code.

Code:

public String hiddenWord(){
     word = randomWord.getRandomWord();
     String dashes = word.replaceAll("[^ ]", " _ ");
     return dashes;
}

public String guessNotification(){
    if(word.indexOf(hv.keyChar)!=-1 && (hv.keyChar >= 'a' && hv.keyChar <= 'z')) {
        letterGuessed = "There is a " + hv.keyChar + " in the word";
    }
    else if(word.indexOf(hv.keyChar)==-1 && (hv.keyChar >= 'a' && hv.keyChar <= 'z')) {
        letterGuessed = "No " + hv.keyChar + " in the word";
        guesses++;
        System.out.println(guesses);

    }
    else{
        letterGuessed = "Not a valid letter";
    }
    return letterGuessed;
}

public void newGame() {
    hv.createNotification(this, size);  
    guesses = 0;
    System.out.println(word);
}
}

Answer 1

Comments are all correct. But you may want to see example code: Add an array of correct guesses:

char[] correct = new char[26];  // or more, depends on whether u use non ascii chars

Initialize the array with eg ' '. Then replace the dashes:

StringBuilder guessedPart = new StringBuilder;
for (int lc = 0; lc < word.lenght(); lc++) {
  for (char c : correct)
    if (word.indexOf(lc) = c) guessedPart.append(c);
  if (guessedPart.length() < lc) guessedPart.append('_');
String guessedWord = guessedPart.toString();

That should do.

Answer 2

Here is how the logic of how to replace the appropriate dash with the correct user guess might look

    public static String guessNotification(String word, char userGuess, StringBuilder dashes) {

        int guessedIndex = word.indexOf(userGuess);
        if (guessedIndex != -1 && (userGuess >= 'a' && userGuess <= 'z')) {

            letterGuessed = "There is a " + userGuess + " in the word";
            dashes.setCharAt(guessedIndex*3+1, userGuess);

        }

        else if (guessedIndex == -1 && (userGuess >= 'a' && userGuess <= 'z')) {

            letterGuessed = "No " + userGuess + " in the word";
            guesses++;

        }
        else {

            letterGuessed = "Not a valid letter";

        }

        return letterGuessed;

    }