Java Code for Hangman Game

import java.util.Arrays;

import java.util.Scanner;

public class Hangman{

    public static void main(String[] args) {

        String[] words = {"writer", "that", "program"};

        // Pick random index of words array

        int randomWordNumber = (int) (Math.random() * words.length);

        // Create an array to store already entered letters

        char[] enteredLetters = new char[words[randomWordNumber].length()];

        int triesCount = 0;

        boolean wordIsGuessed = false;

        do {

        // infinitely iterate through cycle as long as enterLetter returns true

        // if enterLetter returns false that means user guessed all the letters

        // in the word e. g. no asterisks were printed by printWord

        switch (enterLetter(words[randomWordNumber], enteredLetters)) {

            case 0:

                triesCount++;

                break;

            case 1:

                triesCount++;

                break;

            case 2:

                break;

            case 3:

                wordIsGuessed = true;

                break;

        }

        } while (! wordIsGuessed);

        System.out.println("\nThe word is " + words[randomWordNumber] +

            " You missed " + (triesCount -findEmptyPosition(enteredLetters)) +

            " time(s)");

    }

    /* Hint user to enter a guess letter,

    returns 0 if letter entered is not in the word (counts as try),

    returns 1 if letter were entered 1st time (counts as try),

    returns 2 if already guessed letter was REentered,

    returns 3 if all letters were guessed */

    public static int enterLetter(String word, char[] enteredLetters)    {

        System.out.print("(Guess) Enter a letter in word ");

        // If-clause is true if no asterisks were printed so

        // word is successfully guessed

        if (! printWord(word, enteredLetters))

            return 3;

        System.out.print(" > ");

        Scanner input = new Scanner(System.in);

        int emptyPosition = findEmptyPosition(enteredLetters);

        char userInput = input.nextLine().charAt(0);

        if (inEnteredLetters(userInput, enteredLetters)) {

            System.out.println(userInput + " is already in the word");

            return 2;

        }

        else if (word.contains(String.valueOf(userInput))) {

            enteredLetters[emptyPosition] = userInput;

            return 1;

        }

        else {

            System.out.println(userInput + " is not in the word");

            return 0;

            }

    }

    /* Print word with asterisks for hidden letters, returns true if

    asterisks were printed, otherwise return false */

    public static boolean printWord(String word, char[] enteredLetters) {

        // Iterate through all letters in word

        boolean asteriskPrinted = false;

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

            char letter = word.charAt(i);

            // Check if letter already have been entered bu user before

            if (inEnteredLetters(letter, enteredLetters))

                System.out.print(letter); // If yes - print it

            else {

                System.out.print('*');

                asteriskPrinted = true;

            }

        }

        return asteriskPrinted;

    }

    /* Check if letter is in enteredLetters array */

    public static boolean inEnteredLetters(char letter, char[] enteredLetters) {

        return new String(enteredLetters).contains(String.valueOf(letter));

    }

    /* Find first empty position in array of entered letters (one with code \u0000) */

    public static int findEmptyPosition(char[] enteredLetters) {

        int i = 0;

        while (enteredLetters[i] != '\u0000') i++;

        return i;

    }

}