Ytdyklly

This simple implementation of the HangMan game in Java is a side project, unlike the usual programs I write which are either school assignments or problems on coding websites.

It feels great to have something simple working, but I know for sure this can be improved. This only runs through the command line now, but I'm thinking of adding a lot more to this in the near future.

import java.io.File;

import java.io.FileNotFoundException;

import java.util.Scanner;



public class Main {





    public static void main(String args) throws FileNotFoundException {



        Scanner userGuess = new Scanner(System.in);



        printTitleScreen();

        System.out.println("");

        String word = getRandomWordFromFile("/Users/kingcold/Desktop/words.txt");

        char wordCharArray = word.toCharArray();



        System.out.println("It's time to guess the word!");



        StringBuilder gameWord = new StringBuilder(printBlankSpaces(word));



        int successfulAttempts = 0;

        int failedAttempts = 0;

        int totalAttempts = 0;





        do {



            System.out.println("Your word looks like this: " + gameWord);

            System.out.println("Your guess: ");



            String userInput = userGuess.next();

            char charUserInput = userInput.charAt(0);



            if (isValidInput(userInput)) {

                    System.out.println("Your guess is: " + userInput);



                    if (!(containsUserInput(wordCharArray, userInput))) {



                        letterNotInWordMessage(userInput);

                        failedAttempts++;



                    } else if (containsUserInput(wordCharArray, userInput)){



                        letterInWordMessage(userInput);     

                        gameWord.setCharAt(getMatchingIndex(wordCharArray, userInput), charUserInput);

                        successfulAttempts++;



                    }



            } else {



                System.out.println("Invalid input entered. Try again.");



            }



            totalAttempts = successfulAttempts + failedAttempts;





        } while (!word.equals(gameWord.toString()));





        if (word.equals(gameWord.toString())) {

            System.out.println("Congratulations, you correctly guessed the word!");

            System.out.println("The word is " + word);

            System.out.println("You guessed the word in " + totalAttempts + " attempts");

            userGuess.close();

        }



    }



    private static void printTitleScreen() {

        System.out.println("-------------------");

        System.out.println("Welcome to Hangman!");

        System.out.println("-------------------");

    }



    private static String printBlankSpaces(String word) {

        return new String(new char[word.length()]).replace('', '-');

    }



    private static void letterNotInWordMessage(String letter) {

        System.out.println("The letter " + letter + " is not in the word!");

    }



    private static void letterInWordMessage(String letter) {

        System.out.println("The letter " + letter + " is in the word!");

    }



    private static int getMatchingIndex(char wordArray, String userGuess) {

        int index = -1;

        for (int i = 0; i < wordArray.length && (index == -1); i++) {

            if (String.valueOf(wordArray[i]).equals(userGuess)) {

                index = i;

            }

        }

        return index;

    }



    private static boolean containsUserInput(char wordArray, String userGuess) {

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

            if (wordArray[i] == userGuess.charAt(0)) {

                return true;

            }

        }

        return false;

    }



    private static boolean isValidInput(String userGuess) {

        final int VALID_INPUT_LENGTH = 1;

        if (userGuess.length() == VALID_INPUT_LENGTH  && Character.isLetter(userGuess.charAt(0))) {

            return true;

        } 

        return false;

    }



    private static String getRandomWordFromFile(String fileName) throws FileNotFoundException {



        File file = new File(fileName);

        Scanner fileScanner = new Scanner(file);

        String fileContents = "";



        while(fileScanner.hasNextLine()) {

            fileContents = fileContents.concat(fileScanner.nextLine() + "n");

        }



        fileScanner.close();

        String fileContentArray = fileContents.split("n");

        return fileContentArray[(int) (Math.random() * fileContentArray.length)];



    }





}