import java.util.*;

public class Hangman1 {
    Scanner keyboard = new Scanner(System.in);
    Random rand = new Random();

    // determines if character c is inside String str. True returned if
    // inside. call isIn inside printCurrStatus

    // see comments in hint for printCurrStatus

    boolean isIn(char c, String str)
    {
        int length = str.length();
        boolean bool = false;

        for(int i = 0; i < length; i++)
        {
            if(c == str.charAt(i))
                return true;
            else
                bool = false;
        }

        return bool;

    }

    // If userInput contains "ard" and strToGuess contains "aardvark"
    // then the routine prints output that looks like:

    // Current Status for userInputs=ard
    // a a r d _ a r _

    // this routine returns true if all letters are guessed, otherwise
    // false is returned

    // HINT: It is useful to have for loop that goes through each of char
    // in strToGuess. Call isIn for each character
    //(note the second parameter would be userInputs)

    // If isIn returns true, print out character, if isIn
    // returns false then print out '_'
    // you can use variable like:
    // boolean success = true;
    // Whenever you output atleast one '_' you can set success = false;
    // code can return variable success and it will return true if
    // the user has picked all letters

    boolean printCurrStatus(String strToGuess, String userInputs)
    {
        boolean success = false, is = true;
        int length = strToGuess.length();

        System.out.print("Current Status for userInputs=" + userInputs);
        System.out.println("");


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

            success = isIn(strToGuess.charAt(i), userInputs);

            if (success == true) {
                System.out.print(strToGuess.charAt(i));
                System.out.print(" ");
            }
            else
            {
                System.out.print("_");
                System.out.print(" ");
                is = false;
            }
        }
    return is;
    }

    // this routine returns random string from list of words
    // use array list????

    String getNextWordToGuess()
    {
        final int num_words = 10;

        int num = rand.nextInt(num_words);
        // int num = (int)(num_words* Math.random());

        String[] words = new String[] {"elephant", "tiger", "monkey", "baboon", "barbeque",
                "giraffe", "simple", "zebra", "porcupine", "aardvark"};

        return words[num];

    }

    // this next routine plays the hangman game. it calls
    // getNextWordToGuess to
    // get the word that should be guessed. It then has a loop which
    // outputs:
    //"Enter next letter"

    // A string named userInputs stores all letters selected already
    // then the routine printCurrStatus is called to print out current
    // status of
    // the guessed word. If printCurrStatus returns true, we are done.

    void playGame()
    {
        String userInputs = "";
        String strToGuess = getNextWordToGuess();

        while (printCurrStatus(strToGuess, userInputs) == false)
        {
            System.out.println("");
            System.out.print("Enter next letter: ");
            userInputs = userInputs + keyboard.next();
            System.out.println("");
        }

    }


    public static void main(String[] args)
    {
        Hangman1 hangman = new Hangman1();

        String response="";
        do
        {
            hangman.playGame();
            System.out.println("");
            System.out.println("");
            System.out.println("Congratulations! You guessed the word!");
            System.out.print("Do you want to play object oriented Hangman again? (y or n): ");
            response = hangman.keyboard.next();
        } while (response.charAt(0) == 'y');

        System.out.println("Bye");

    }
}