Print Pascal Triangle

PascalTriangle.java

public class PascalTriangle {
    public static long fact(long n) {
        if (n == 0) 
            return 1;
        if (n == 1)
            return 1;
        long f = 1;
        for (long i = 2; i <= n; i++) {
            f *= i;
        }
        return f;
    }
    public static long comb(long n, long r) {
        return fact(n) / (fact(r)*fact(n-r));
    }
    public static void main(String []args) {
        System.out.print("Insert input : ");
        int input = Integer.valueOf((System.console()).readLine());
        for (int i = 0; i < input; i++) {
            for (int s = input-1; s > i; s--)
                System.out.print("   ");
            for (int j = 0; j <= i; j++) {
                System.out.print(comb(i,j) + "     ");
            }
            System.out.println();
        }
    }
}