public class Fakultaet {
    public Fakultaet() {
        int inputNum = 30;
        System.out.println("Iterativ: " + iterativFakultaet(inputNum));
        System.out.println("Recursiv: " + recursivFakultaet(inputNum));
    }

    public Fakultaet(int num) {
        System.out.println("Iterativ: " + iterativFakultaet(num));
        System.out.println("Recursiv: " + recursivFakultaet(num));
    }

    public int iterativFakultaet(int num) {
        int result = 1;
        for (int index = 1; index <= num; index++) {
            result = index * result;
        }
        return result;
    }

    public int recursivFakultaet(int num) {
        if (num == 1) {
            return num;
        }
        return num * recursivFakultaet(num-1);
    }
}