Guessing Game

import java.util.Scanner;

public class GuessGame {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int secretNum = (int)(Math.random()*100) + 1;
        System.out.printf("Secret number - %d", secretNum);
        System.out.println("\n----------------");
        int numOfGuesses = 0, lowerBound = 1, upperBound = 100, guess = -1;
        System.out.println("This is a guess game. Try to guess a number between 1 to 100." +
                " On success the program will prompt the number of guesses you made.");
        do {
            System.out.printf("Please choose a number between %d and %d\n", lowerBound, upperBound);
            guess = sc.nextInt();
            if(guess < secretNum) {
                System.out.println("Too small...");
                lowerBound = guess;
            } else if(guess > secretNum) {
                System.out.println("Too big...");
                upperBound = guess;
            }
            numOfGuesses += 1;
        } while(guess != secretNum);
        System.out.printf("You guessed right after %d attempts.", numOfGuesses);
    }
}