faktorial

/** @author Otto Sabart - Seberm
*/

public class faktorial {


        public static void main(String[] argv) {

                if (argv.length <= 0) {
                        System.out.println("chybi parametr");
                        System.exit(0);
                }

                System.out.println(faktorial.faktorial(Integer.valueOf(argv[0])));
        }


        public static int faktorial (int n) {

                int x = 1;


                if (n != 0)
                        x = n * faktorial(n - 1);

                return x;
        }
};