18. NumberGuessingGame

Guess a hidden number between 1 and 1000. The program uses a do-while loop to keep the iteration going until the user gets the correct number.

Description: Guess a hidden number between 1 and 1000. The program uses a do-while loop to keep the iteration going until the user gets the correct number. The program gives the user a "higher/lower" hint after each guess.

Code

package asu.numberguessinggame;

import java.util.Scanner;

public class NumberGuessingGame {
    
    public static void main(String[] args) {
        
        int secretNumber;
        secretNumber = (int) (Math.random() * 999 + 1);
        Scanner keyboard = new Scanner(System.in);
        int guess;
        do {
            System.out.println("Enter a guess (1-1000): ");
            guess = keyboard.nextInt();
            if (guess == secretNumber)
                System.out.println("Your guess is correct. Congratulations!");
            else if (guess < secretNumber)
                System.out.println("Your guess is smaller than the secret number.");
            else if (guess > secretNumber)
                System.out.println("Your guess is greater than the secret number.");
            } while (guess != secretNumber);
    }
}

Output

Enter a guess (1-1000): 
500
Your guess is greater than the secret number.
Enter a guess (1-1000): 
250
Your guess is smaller than the secret number.
Enter a guess (1-1000): 
325
Your guess is smaller than the secret number.
Enter a guess (1-1000): 
400
Your guess is smaller than the secret number.
Enter a guess (1-1000): 
450
Your guess is smaller than the secret number.
Enter a guess (1-1000): 
475
Your guess is greater than the secret number.
Enter a guess (1-1000): 
457
Your guess is greater than the secret number.
Enter a guess (1-1000): 
453
Your guess is smaller than the secret number.
Enter a guess (1-1000): 
455
Your guess is smaller than the secret number.
Enter a guess (1-1000): 
456
Your guess is correct. Congratulations!