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- package aufgabenblaetter.aufgabenblatt;
- public class Fakultaet {
- public static long doIt(int n) {
- if (n < 0)
- return -1;
- long ergebnis = 1;
- while (n > 0) {
- ergebnis *= n;
- n--;
- }
- return ergebnis;
- }
- public static void main(String[] args) {
- for (int i = 0; i < 6; i++) {
- System.out.println(i + "! = " + doIt(i));
- }
- }
- }
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