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fakultaet

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Jan 23rd, 2020
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  1. package aufgabenblaetter.aufgabenblatt;
  2.  
  3. public class Fakultaet {
  4.  
  5. public static long doIt(int n) {
  6. if (n < 0)
  7. return -1;
  8. long ergebnis = 1;
  9.  
  10. while (n > 0) {
  11. ergebnis *= n;
  12. n--;
  13. }
  14.  
  15. return ergebnis;
  16. }
  17.  
  18. public static void main(String[] args) {
  19. for (int i = 0; i < 6; i++) {
  20. System.out.println(i + "! = " + doIt(i));
  21. }
  22. }
  23.  
  24. }
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