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This is my first post on this forum showing you a simple implementation of the HangMan game in Java. This is a side project and this deviated from 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.
Thanks.

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)];