Java - Guess the Secret Word or Sentence Tutorial

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Here you can find the complete source code Guessing a word or sentence in Java Programming Language. You need to make a random guess with a letter and this program will guide whether you have guessed it correct or wrong. It will give you maximum of 10 characters guessing. You can increase this limit, if you want..

 

The program will read the words or sentences from the given input file and will pick up a word or sentence and store it as a secret word. It starts with displaying the number characters as "*" and the following sequence is self explanatory.

 

Welcome to Guess a Word

 

Your secret word is: ******

Guess now  (To stop the program, enter #) :

a

Wrong: ******

Guesses : a

 

s

Correct: s*****

Guesses : a s

 

ch

Correct: sch***

Guesses : a s c h

 

o

Correct: schoo*

Guesses : a s c h o

 

l

Correct: school

Congrats! You have guessed it correctly

 

 

 

Source Code

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import java.io.*;
import java.lang.*;
import java.util.*;
 
class GuessWord
{
      public static int ReadWordsFromFile(String[] words)
      {
            try
            {
                  FileReader fr = new FileReader("words_input.txt");
                  BufferedReader br = new BufferedReader(fr);
                  int count = 0;
                  for (int i = 0; i < 100; i++)
                  {
                        String s = br.readLine();
                        if (s == null)
                              break;
                        words[count++] = s;
                  }
                  fr.close();
                  return count;
            }
            catch (FileNotFoundException e)
            {
                  System.out.println(e.getMessage());
                  return -1;
            }
            catch (IOException err)
            {
                  System.out.println(err.getStackTrace());
                  return -1;
            }
      }
 
      static public String ReadString()
      {
            try
            {
                  String inpString = "";
                  InputStreamReader input = new InputStreamReader(System.in);
                  BufferedReader reader = new BufferedReader(input);
                  return reader.readLine();
            }
            catch (Exception e)
            {
                  e.printStackTrace();
            }
            return "";
      }
 
      public static void main(String[] args)
      {
            System.out.println("Welcome to Guess a Word\n");
 
            String[] words = new String[100];
           
            int count = ReadWordsFromFile(words);
            if (count < 0)
            {
                  System.out.println("No words found in the file");
                  return;
            }
 
            int x = (int)(Math.random() * 100);
            int guessX = (x % count);
 
            String secretWord = words[guessX];
 
            int numChars = secretWord.length();
 
            System.out.print("Your secret word is: ");
            for(int i = 0; i < numChars; i++)
                  System.out.print("*");
            System.out.println();
 
            boolean bGuessedCorrectly = true;
            System.out.println("Guess now  (To stop the program, enter #) : ");
            String choicelist = "";
            
            while (true)
            {
               bGuessedCorrectly = true;
               String choice = ReadString();
               
               if (choice.compareTo("#") == 0)
               {
                  bGuessedCorrectly = false;
                  break;
               }
               
               choicelist += choice;
               if(choicelist.length() > 10)
                  choicelist = choicelist.substring(0,9);
               
               boolean bResult = false;
               String dispstr = "";
               for (int i = 0; i < numChars; i++)
               {
                  boolean bCorrect = false;
                  for(int j = 0; j < choicelist.length(); j++)
                  {
                     if(choice.indexOf(secretWord.charAt(i)) >= 0)
                        bResult = true;
                     if (secretWord.charAt(i) == choicelist.charAt(j))
                     {
                        dispstr += secretWord.charAt(i);
                        bCorrect = true;
                        break;
                     }  
                  }
                  if(bCorrect == false)
                  {
                     dispstr += "*";
                     bGuessedCorrectly = false;
                  }
               }
               if(bResult == true)
               {
                  System.out.format("Correct: %s", dispstr);
               }
               else
               {
                  System.out.format("Wrong: %s", dispstr);
               }
               
               if(bGuessedCorrectly == true)
                     break;
               System.out.println();
               System.out.print("Guesses : ");
               for(int i = 0; i < choicelist.length(); i++)
                  System.out.format("%c ", choicelist.charAt(i));
               System.out.println();
               System.out.println();
                  
               if(choicelist.length() >= 10)
               {
                  System.out.print("You have reached maximum amount of guesses.");
                  bGuessedCorrectly = false;
                  break;
               }
            }
            
            if (bGuessedCorrectly == false)
                  System.out.println("\nUnfortunately you did not guess it correctly. The secret word is: " + secretWord);
            else
                  System.out.println("\nCongrats! You have guessed it correctly");         
      }
}
    

Output

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// contents of words_input.txt

computer

computer technology

science

school

schooling

information

technology

 

Welcome to Guess a Word

 

Your secret word is: **********

Guess now  (To stop the program, enter #) :

tech

Correct: tech******

Guesses : t e c h

 

no

Correct: techno*o**

Guesses : t e c h n o

 

i

Wrong: techno*o**

Guesses : t e c h n o i

 

gy

Correct: techno*ogy

Guesses : t e c h n o i g y

 

l

Correct: technology

Congrats! You have guessed it correctly

 

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