Question

Write a Java program implementing a hangman game. This should be a multi file project, managed with the directory structure discussed in class, compiled with the ant tool (using a build.xml file), and packaged as a JAR file, ready for distribution. Instructions on how to generate these files are included in our lectures. You can practice with the files ready to compile attached to Lecture 24 (the TicTacToe class example).

Your project should include:

1. a text file for the dictionary of words used in the game. The game should randomly select a word from this text file, which should be stored in the resources directory

2. a class to handle the construction of the game board, as well as any operations needed to update the board at every turn of the game. For example, if the player does not guess the next letter from the secret word correctly, this helper class (similar to the Array helper class for the TicTacToe game) should update the board by drawing the next "limb" on the scaffolding, therefore it should have an Update() and a Print() method

3. a class Hangman to handle the game play. Similar to the TicTacToe game, this class should have a Turn() method, handling all the actions needed in the game during one turn (invitation for the user to enter the next letter, accepting user input, matching against the secret word, update of the word display to show all the letters guessed so far), a Play() method to handle all the turns in a loop controlled by the return value from EndGame(), an EndGame() method to check for the end-of-game condition etc.

This project will be graded not only based on its output (the game play observed at the command line), but especially based on elegance of programming and using the compile tools studied this semester. For example, hardcoding the state of the board repeatedly will be penalized.

The project should contain both games TicTacToe (code provided with Lecture 24) and Hangman, both of which should be part of the same  package games. This project, together with your homework assignments, will represent your portfolio for this class, and may be uploaded onto Watermark as per our department regulations.

Answer 1

import java.net.*;
import java.io.*;
import java.util.*;
import java.lang.*;
import java.lang.Math;

class HangMan {

    private List<String> wordsList;
    private String availableLetters;
    private String secretWord;
    private char[] lettersGussed;

    public HangMan() {
        for(int i=0; i<25; i++)
            availableLetters = availableLetters + (char)(97+i);
       
    }

    public List<String> loadWords(String fileName) {
        wordsList = new ArrayList<String>();
        //your code goes here


    File f = new File(fileName);
    
    // Scanner sc= new Scanner(f);
    // while(sc.hasNextLine()){
    //     System.out.println(sc.next());
    // }
  char c;
  String word="";
try {
      FileInputStream fis = new FileInputStream(f);
      char current;
      while (fis.available() > 0) {
        c = (char) fis.read();
        if(((int)c>=65 && (int)c<=90))
        {
            System.out.println(word);
            wordsList.add(word);
            word="";
        }
        word+=c;
        System.out.println(c);
        
        //System.out.print(current);
      }
      wordsList.add(word);
      wordsList.remove(0);
      for(int i=0;i<wordsList.size();i++)
      {
        System.out.println(wordsList.get(i));
      }
    } catch (IOException e) {
      e.printStackTrace();
    }




        return wordsList;
    }

    public boolean isWordGuessed(String secretWord, char[] lettersGussed) {
        //String lg = new String(lettersGussed);
        //your code goes here
        String result = "";
        for (int i = 0; i < secretWord.length(); i++) {
        if(!result.contains(String.valueOf(secretWord.charAt(i)))) {
            result += String.valueOf(secretWord.charAt(i));
        }
    }
    //System.out.println("result="+result);

        int flag=0,count=0;
        for(int i=0;i<result.length();i++)
        {   flag=1;
          for(int j=0;j<lettersGussed.length;j++ )
          {
            if(result.charAt(i)==lettersGussed[j])
            {
                count++;
          }}
          //if (flag==0)
            //break;
        }
        if (count==result.length())
        return true;
        else
        return false;

    }

    public String getGuessedWord(String secretWord, char[] lg) {
        //your code goes here
        //System.out.println(secretWord);
    String new_string="";
    int isSpace=0,flag=0,p=0;
    for (int i=0;i<secretWord.length();i++)
    {
        flag=0;
        p=0;
        for (int j=0;j<lg.length;j++)
        {   
            
            if (secretWord.charAt(i)==lg[j])
            {
                

                p=1;
                //System.out.println(new_string.length());
                if (new_string.length()>0)
                {
                 if (new_string.charAt(new_string.length()-1)=='_')
                    {//System.out.println(new_string.charAt(new_string.length()-1));
                
                        //System.out.println("deepak");
                        new_string+=" ";
                            }
                }
                new_string+=lg[j];
                break;
            }
            else
                flag=1;
        }
        if (flag==1 && p==0)
                new_string+=" _";
    }

    if (new_string.charAt(new_string.length()-1)==' '||new_string.charAt(0)==' ')
    {
        
        String s="";
        for(int i=0;i<new_string.length();i++)
        {
            if(!(new_string.charAt(i)==' '&&(i==0||i==(new_string.length()-1))))
                {s+=new_string.charAt(i);}
        }
        return s;
    }
else
    return new_string;
}

    public String getAvailableLetters(char[] lg) {
        String availableLetters = "";

            String alphabets="abcdefghijklmnopqrstuvwxyz";
        //    String avail_letters="";

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

            {   int flag=0;

            for(int j=0;j<lg.length;j++){
                if(alphabets.charAt(i)==lg[j])
                {
                    flag=1;
                    break;
                }
               }
               if (flag==0)
                 availableLetters+=alphabets.charAt(i);
               

            }


        //your code goes here
        return availableLetters;
    }
    public String chooseWord(List<String> wordsList )
    {
        
        String word=wordsList.get((int)Math.random()*wordsList.size());

        //your code goes here
        return word;
    }
    public void startHangMan(String secretWord)
    {
        //your code goes here

    int guess=8,flag;
    char[] lettersGuessed=new char[30];
    int size=0;
    String letter;
    Scanner sc=new Scanner(System.in);
    String alphabets,new_string;
    System.out.println("Length of the word to be guessed is "+secretWord.length());
    System.out.println("\n-----------------------------------------------");    
    while (guess>0)
    {
        System.out.println("\nYou have "+guess+" guesses left");
        alphabets=getAvailableLetters(lettersGuessed);
        System.out.println("\nAvailable letters : "+alphabets);
        System.out.println("\nGuess a letter : ");
        letter=sc.nextLine();
        
        if(Arrays.asList(lettersGuessed).contains(letter )) {

            
            System.out.println("You have aleady guessed this letter");
            new_string=getGuessedWord(secretWord,lettersGuessed);
            for (int i=0;i<new_string.length();i++)
                    System.out.print(new_string.charAt(i));
            }
        else
        {   
            flag=0;
            lettersGuessed[size++]=letter.charAt(0);
            for(int i=0;i<secretWord.length();i++)
            {
                if (letter.charAt(0)==secretWord.charAt(i))
                    {flag=1;
                        break;}
                
            }
            if (flag==1)//if letter in secretWord
            {   System.out.println("\nCorrect guess!");
                new_string=getGuessedWord(secretWord,lettersGuessed);
                for (int j=0;j<new_string.length();j++)
                    System.out.print(new_string.charAt(j));
            }
            else
                {
                System.out.println("Oops! Wrong guess.");
                guess-=1;
                new_string=getGuessedWord(secretWord,lettersGuessed);
                for (int j=0;j<new_string.length();j++)
                    System.out.print(new_string.charAt(j));
                }
        }
        if (isWordGuessed(secretWord,lettersGuessed))
        {
            System.out.println("\nCongratulations!You have won the game :) ");
            break;
        }
        System.out.println("----------------------------------------------");
        
    }
    if (guess<=0)
       { System.out.println("Sorry,you have lost the game :(");
        System.out.println("The word was :"+secretWord);
    }





    }
}

public class HangManGame {
    public static void main(String[] args) {
        HangMan hangMan = new HangMan();
        String secretWord = hangMan.chooseWord(hangMan.loadWords("words.txt")).toLowerCase();
        hangMan.startHangMan(secretWord);
        //you can call your function here 
        //foo.function_name(arg1, arg2, ...);
    }
}