public class Beispiel{

    public static void main(String[] args) {

public static int fakulIter(int a){
int b = 1;
for (int c = 1;c <= a;c++) {
b *= c;
}
return b;
}

public static int fakulRek(int a) {
if (a == 0) return 1;
return a * fakulRek(a - 1);
}

}
}