Java pr

class Factorial {

    static int factorial( int n ) {

        if (n != 0)  // termination condition

            return n * factorial(n-1); // recursive call

        else

            return 1;

    }

    public static void main(String[] args) {

        int number = 4, result;

        result = factorial(number);

        System.out.println(number + " factorial = " + result);

    }

}