In several Game Zone assignments earlier in this book, you created games similar

Question

In several Game Zone assignments earlier in this book, you created games similar to Hangman in which the user guesses a secret phrase by selecting a series of letters. These versions had limited appeal because each contained only a few possible phrases to guess; after playing the games a few times, the user would have memorized all the phrases. Now create a version in which any number of secret phrases can be saved to a file before the game is played. Use a text editor such as Notepad to type in any number of phrases into a file, one per line. Save the file as Phrases.txt. Then create a game that randomly selects a phrase from the file and allows a user to guess the phrase letter by letter. Save the game as SecretePhraseUsingFile.java

Explanation / Answer

I have written the java code for the game as desired by you:

import java.io.BufferedReader;
import java.io.FileReader;
import java.util.Random;
import java.util.Scanner;
import java.util.Arrays;

public class SecretePhraseUsingFile {

   private static final int guess_count = 6;
   public static void main(String[] args){
       String text = "";
       try{
           FileReader fr = new FileReader("Phrases.txt"); // reading file phrases.txt
           BufferedReader bReader = new BufferedReader(fr);
           String line = bReader.readLine();
           while(line != null){
               if(line.indexOf("'") == -1){                  
               text += line+",";
               }
               line = bReader.readLine();
           }
           bReader.close();
       }
       catch(Exception e){
       //There was a problem!
           System.out.println("ERROR: There was a problem reading the file. "+
       e.getMessage());
           System.exit(1);
       }

       String[] englishWords = text.split(",");
       Random rand = new Random();

       int randNum = rand.nextInt(englishWords.length-1);
       String wordToGuess = englishWords[randNum];
       String[] lettersGuessed = new String[26];
       int lettersIndex = 0;      
       int mistakes = 0;
      
       Scanner in = new Scanner(System.in);
      
       boolean youWon = false;

       CharSequence guess = "";

       while(mistakes < guess_count && !youWon){
           display_status(mistakes);
           //Display the word to guess
           displayPhrase(wordToGuess, lettersGuessed);
           System.out.println("You have guessed:"+Arrays.toString(lettersGuessed));
           guess = in.next();
           lettersGuessed[lettersIndex] = guess.toString();
           lettersIndex = lettersIndex + 1;
           if(!wordToGuess.contains(guess)){
               mistakes = mistakes + 1;
               System.out.println("Wrong. The letter "+guess.toString()+" is not in the word.");
           }
           //Check to see if the user won
           youWon = winner(wordToGuess, lettersGuessed);
       }

       if(youWon){
           System.out.println("You win! The word is "+wordToGuess);
       }else{
           display_status(mistakes);
           System.out.println("You lose! The word is "+wordToGuess);
       }
   }
  
   public static void display_status(int mistakes){
       String line1 = " O | ";
       if(mistakes == 0){
           line1 = " | ";
       }
      
       String line2 = " | ";
       if(mistakes >= 4){
           line2 = " \|/ | ";
       }else if(mistakes == 3){
           line2 = " \| | ";
       }else if(mistakes == 2){
           line2 = " | | ";
       }
      
       String line3 = " | ";
       if(mistakes >= 5){
           line3 = " | | ";
       }

       String line4 = " | ";
       if(mistakes >= 6){
           line4 = " ^ | ";
       }

       System.out.println(
               " ----- "+
               " | | "+
       line1+//" O | "+
       line2+//" \|/ | "+
       line3+//" | | "+
       line4+//" ^ | "+
               " | "+
               " -------- ");
   }

   public static void displayPhrase(String wordToGuess, String[] lettersGuessed){
       System.out.print("Word to Guess: ");
       //Loop over each letter in wordToGuess
       for(int i = 0; i < wordToGuess.length(); i++){
           char temp = wordToGuess.charAt(i);
           if(stringArrayContains(lettersGuessed, temp)){
               System.out.print(wordToGuess.charAt(i)+" ");
           }else{
               System.out.print("_ ");
           }
       }
       System.out.println(" ");
   }
  
   public static boolean winner(String wordToGuess, String[] lettersGuessed){
       //Loop over each letter in wordToGuess
       for(int i = 0; i < wordToGuess.length(); i++){
           char temp = wordToGuess.charAt(i);
           if(!stringArrayContains(lettersGuessed, temp)){
               return false;
           }
       }
       return true;
   }
  
  
   public static boolean stringArrayContains(String[] strArray, char letter){
       for(int i = 0; i < strArray.length; i++){
           if(strArray[i] != null && strArray[i].equalsIgnoreCase(String.valueOf(letter))){
               return true;
           }
       }
       return false;
   }
  
   public static void testgame(){
       int i = 0;
       display_status(i++);
       display_status(i++);
       display_status(i++);
       display_status(i++);
       display_status(i++);
       display_status(i++);
       display_status(i++);
       display_status(i++);
   }
}

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