Fatorial - recursive

class neoFatorial {
    double element;
    double calcFatorial(double var) {
        if(var == 0)
            return 1;
        else
            return var * calcFatorial(var - 1);
    }

    public static void main(String[] args) {
        neoFatorial fatorial = new neoFatorial();

        fatorial.element = 5;
        System.out.println("Fatorial : " + fatorial.calcFatorial(fatorial.element));
    }
}