Hangman: Do-while loop 'yes or no' user input response

[Zxander]

I've come across a little problem. How do I make it so that after my game is finished, I can choose whetever to exit my program or just restarting it from the beginning. In main method I've started my while loop to check my tries left if my counter is below 7 and I want to combine it , but I don't know how exactly My code so far :

public class Hangman {

    public static String[] words = {"terminator", "banana", "computer", "cow", "rain", "water"};
    public static String word = words[(int) (Math.random() * words.length)];
    public String underscore = new String(new char[word.length()]).replace("\0", "_");
    public int count = 0;

    Scanner sc = new Scanner(System.in);

    public void hang(String guess) {
        String newstar = "";
        for (int i = 0; i < word.length(); i++) {
            if (word.charAt(i) == guess.charAt(0)) {
                newstar += guess.charAt(0);
            } else if (underscore.charAt(i) != '_') {
                newstar += word.charAt(i);
            } else {
                newstar += "_";
            }
        }

        if (underscore.equals(newstar)) {
            count++;
            hangmanImage();
        } else {
            underscore = newstar;
        }
        if (underscore.equals(word)) {
            System.out.println("Correct! You win! The word was " + word);
        }

    }

    public void hangmanImage() {
        if (count == 1) {
            System.out.println("You have 6 tries left");

        }
        if (count == 2) {
            System.out.println("You have 5 tries left");

        }
        if (count == 3) {
            System.out.println("You have 4 tries left");

        }
        if (count == 4) {
            System.out.println("You have 3 tries left");

        }
        if (count == 5) {
            System.out.println("You have 2 tries left");

        }
        if (count == 6) {
            System.out.println("You have 1 tries left");

        }
        if (count == 7) {
            System.out.println("GAME OVER! The word was " + word);
        }

    }

}

    public static void main(String[] args) {
        Hangman hangman = new Hangman();

        while (hangman.count < 7 && hangman.underscore.contains("_")) {
            System.out.println("Guess any letter in the word");
            System.out.println(hangman.underscore);
            String guess = hangman.sc.next();
            hangman.hang(guess);
        }
    }

[tinstaafl]

The simplest way,most likely, would be to wrap that while loop in another while loop that's based on whether the user wants to play again. Something like this should work:

public static void main(String[] args) {
    Hangman hangman = new Hangman();
    boolean quit = false;
    while(!quit) {
        while (hangman.count < 7 && hangman.underscore.contains("_")) {
            System.out.println("Guess any letter in the word");
            System.out.println(hangman.underscore);
            String guess = hangman.sc.next();
            hangman.hang(guess);
        }
        System.out.print("Another Game? :");
        char response = hangman.sc.next().charAt(0);
        if(response == 'n' || response == 'N'){
            quit = true;
        }
}

That being said, your code needs a bit more work to follow encapsulation principles. Keep all the game inside the Hangman class and only run the game from Main.

[Zxander]

Thank you for your answer and advices, but unfortunately I still haven't solve the restart problem.

[tinstaafl]

Sorry did that code on the fly. Try this:

public static void main(String[] args) {
    boolean quit = false;
    while(!quit) {
        Hangman hangman = new Hangman();        
        while (hangman.count < 7 && hangman.underscore.contains("_")) {
            System.out.println("Guess any letter in the word");
            System.out.println(hangman.underscore);
            String guess = hangman.sc.next();
            hangman.hang(guess);
        }
        System.out.print("Another Game? :");
        char response = hangman.sc.next().charAt(0);
        if(response == 'n' || response == 'N'){
            quit = true;
        }
}

[JamesCherrill]

I don't mean to be picky, but a loop that needs to be executed at least once should be a do/while not a while, which would obviate the need for that faffing around with a quit boolean.
As in

do {
   (whatever)
} while (user wants another game);

[Zxander]

Something is not right . It is restartring my game, but the word that is picked is still the same as the last game. Probably I forgot to mention this, but I think it is obvious this program to act like this. How do I fix this ?

[Zxander]

Okay, I found the problem for this. My variable where I used math.random() was static and everytime when I play it use the randomization only once as we already know what static does. Problem is solved :)