Factorial

import java.util.Scanner;


public class Factorial {
    public static int facIter(int n) {
        int res = 1;
        while (n > 1) {
            res = res * n;
            n--;
        }
        return res;
    }
    public static int facRecur(int n) {
        if (n <= 1) {
            return 1;
        }
        else {
            return n * facRecur(n-1);
        }
    }
    public static void main(String[] args) {
        Scanner kb = new Scanner(System.in);
        System.out.print("Enter a line of pascals triangle: ");
        int input = kb.nextInt();
        System.out.println("Iterative:\t" + facIter(input));
        System.out.println("Recursive:\t" + facRecur(input));
    }
}