Guess The Number

import java.util.Random;
import java.util.Scanner;

public class RandomAndLoops {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);
        Random random = new Random();
        int guess, randNum;
        char yn;

        while (true) { // main game loop
            randNum = random.nextInt(41);
            System.out.println("I'm thinking of a number from 0-40. What is it? ");

            while (true) { // guess loop
                guess = Integer.parseInt(input.nextLine());
                if (guess < randNum)
                    System.out.println("Too low, try again: ");
                else if (guess > randNum)
                    System.out.println("Too high, try again: ");
                else {
                    System.out.println("You have guessed the correct number!");
                    break; // exit guess loop
                }
            }

            System.out.println("Play again? (y/n) ");
            yn = input.nextLine().toLowerCase().charAt(0);
            if (yn != 'y') break; // exit main game loop
        }

        input.close();
    }
}