Untitled

public static int valueOfNCR(int n, int r) {

        if (n == r)
            return 1;

        if (r == 1)
            return n;

        if (n == 0 || r == 0 || r > n)
            return 0;

        if (n == 1)
            return 1;

        return valueOfNCR(n - 1, r - 1) + valueOfNCR(n - 1, r);

    }