Number Guessing Game in Java

In Java, a number guessing game is a basic game in which the computer creates a random number and the player attempts to guess it within a specific range. Here's a quick rundown of how it works:

The game begins with the computer creating a random number within a given range (for example, between 1 and 100).
The following number is guessed by the player: The participant is asked to enter their best prediction for the random number.
Contrast the following guesses: The computer then compares the player's guess against the number created at random.
Provide input: The computer delivers feedback to the player based on the comparison. It may indicate whether the guess is too high or too low, or if the guess is right.
Repeat or end: The player makes guesses until they predict the proper number, at which time the game terminates with a celebratory message.

Game Rules

To create a Java software that gives the user K chances to correctly predict a randomly generated number. The game's rules are listed below:

The software will answer by stating that the predicted number is greater than the real number if it is larger than the actual number.
The software will answer with the message that the predicted number is lower than the real number if it is smaller than the actual number.
The program will terminate with the appropriate message if the guesses are accurate or if all K trials have been performed.

Approach

The way is to produce a random integer in Java using the Math.random() function.
Now, using a loop, accept K inputs from the user and publish whether the number is lower or bigger than the real number for each input.
If the user accurately estimated the number within K tries, report that the user won.
Otherwise, publish that he was unable to predict, followed by the actual number.

Number Guessing Game Java Program

NumberGuess.java

import java.util.Scanner;
public class NumberGuess {
    public static void playGame() {
        Scanner scanner = new Scanner(System.in);
        int secretNumber = 1 + (int)(100 * Math.random());
        int maxAttempts = 5;
        int attempts, guess;
        System.out.println("Welcome to the Number Guessing Game!");
        System.out.println("A number has been chosen between 1 and 100.");
        System.out.println("Your task is to guess the number within 5 attempts.");
        for (attempts = 0; attempts < maxAttempts; attempts++) {
            System.out.println("Attempt " + (attempts + 1) + ": Enter your guess:");
            guess = scanner.nextInt();
            if (secretNumber == guess) {
                System.out.println("Congratulations! You've guessed the correct number.");
                break;
            } else if (secretNumber > guess && attempts != maxAttempts - 1) {
                System.out.println("The secret number is greater than your guess.");
            } else if (secretNumber < guess && attempts != maxAttempts - 1) {
                System.out.println("The secret number is less than your guess.");
            }
        }
        if (attempts == maxAttempts) {
            System.out.println("You have exhausted all " + maxAttempts + " attempts.");
            System.out.println("The secret number was " + secretNumber);
        }
    }
    public static void main(String args[]) {
        playGame();
    }
}

Output:

Welcome to the Number Guessing Game!
A number has been chosen between 1 and 100.
Your task is to guess the number within 5 attempts.
Attempt 1: Enter your guess:
3
The secret number is greater than your guess.
Attempt 2: Enter your guess:
50
The secret number is less than your guess.
Attempt 3: Enter your guess:
30
The secret number is less than your guess.
Attempt 4: Enter your guess:
20
The secret number is greater than your guess.
Attempt 5: Enter your guess:
24
You have exhausted all 5 attempts.
The secret number was 29

Let's see another approach for the same.

NumberGuess.java

import java.util.Scanner;
import java.lang.Math;
public class NumberGuess{
  public static void main(String[] args) {
    int secretNumber = (int)(Math.random() * 100) + 1;
    int remainingAttempts = 5;
    Scanner userInput = new Scanner(System.in);
    boolean isGuessed = false;
    System.out.println("I'm thinking of a number between 1 and 100.");
    System.out.println("You have 5 attempts to guess the number.");
    while (remainingAttempts > 0) {
      System.out.println("Enter your guess: ");
      int userGuess = userInput.nextInt();
      if (userGuess == secretNumber) {
        System.out.println("Congratulations! You've guessed the number. You win!");
        isGuessed = true;
        break;
      } else if (userGuess > secretNumber) {
        System.out.println("Your guess is too high. You have " + (remainingAttempts - 1) + " attempts left.");
      } else {
        System.out.println("Your guess is too low. You have " + (remainingAttempts - 1) + " attempts left.");
      }
      remainingAttempts--;
    }
    if (!isGuessed) {
      System.out.println("You've run out of attempts. You lose!");
    }
  }
}

Output:

I'm thinking of a number between 1 and 100.
You have 5 attempts to guess the number.
Enter your guess: 
5
Your guess is too low. You have 4 attempts left.
Enter your guess: 
25
Your guess is too low. You have 3 attempts left.
Enter your guess: 
50
Your guess is too low. You have 2 attempts left.
Enter your guess: 
70
Your guess is too low. You have 1 attempts left.
Enter your guess: 
90
Your guess is too high. You have 0 attempts left.
You've run out of attempts. You lose!

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