Permutation and combination of 2 numbers

In this code example the permutation and combination of 2 numbers are calculated.

import java.util.Scanner;

public class PermutationCombination {
	private static int fact(int val) {
		if (val == 0 || val == 1)
			return 1;
		else
			return val * fact(val - 1);
	}

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		int n, r, combination, permutation;

		System.out.print("Enter value of n : ");
		n = scan.nextInt();
		System.out.print("Enter value of r : ");
		r = scan.nextInt();

		combination = fact(n) / (fact(r) * fact(n - r));
		permutation = fact(n) / fact(n - r);

		System.out.println("\nCombination : " + combination);
		System.out.print("Permutation : " + permutation);
	}
}

Output

Enter value of n : 8
Enter value of r : 6

Combination : 28
Permutation : 20160