Factorial of a given number

Factorial Class :

import java.math.BigInteger;

import java.util.Scanner;

public class Factorial {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        System.out.print("Enter the number to get factorial: ");

        int n = scanner.nextInt();

        BigInteger result = factorial(n);

        System.out.println("The factorial of " + n + " is " + result);

        scanner.close();

    }

    public static BigInteger factorial(int n) {

        BigInteger factorial = BigInteger.ONE;

        if (n > 0) {

            for (int i = n; i > 0; i--) {

                factorial = factorial.multiply(BigInteger.valueOf(i));

            }

            return factorial;

        } else {

            return BigInteger.ZERO;

        }

    }

}

Output : 

Enter the number to get factorial: 4
The factorial of 4 is 24