Factorial

package factorial;
import java.util.Scanner;

public class Factorial {

    public static void main(String[] args) {
        // MP2 factorial a Java application that will use input numbers from user and
        // yield calculated factorial answers

        // @ author Renee Waggoner

        Scanner keyboard = new Scanner(System.in);
        int factorial = 1;
        boolean repeat = true;
        // loop will continue until user entered 'n' as option
        while (repeat) {
            factorial = 1;
            // ask for user to enter a number
            System.out.print("Enter N: ");
            int number = Integer.parseInt(keyboard.nextLine());
            // calculate factorial
            while (number != 0) {
                factorial = factorial * number;
                number -= 1;
            }
            // print factorial value
            System.out.print("Factorial = " + factorial);
            // ask for yes or no option
            System.out.print("\nDo you want to continue? (y/n): ");
            // receive choice
            char decision = keyboard.nextLine().charAt(0);

            switch (decision) {
            // in this case, do this
            case 'y':
                repeat = true;
                break;
            // in this case do this
            case 'n':
                System.out.println("Have a good day");
                repeat = false;
                break;
            }
        }
        keyboard.close();
    }
}