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Apr 21st, 2017
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  1. public static int quersumme3(int zahl) {
  2. String zahlAlsString = String.valueOf(zahl);
  3. int laengeString = zahlAlsString.length();
  4. int qs3 = 0;
  5. for (int i = 0; i < laengeString; i++) {
  6. // Variante 1 mit substring
  7. //System.out.println(zahlAlsString.substring(i, i+1));
  8. //qs2 = qs2 + Integer.parseInt(zahlAlsString.substring(i, i+1));
  9.  
  10. // Variante 2 über charAt (etwas umständlicher da öfters Casting notwendig)
  11. //System.out.println(Integer.parseInt(String.valueOf(zahlAlsString.charAt(i))));
  12. qs3 = qs3 + Integer.parseInt(String.valueOf(zahlAlsString.charAt(i)));
  13. }
  14. return qs3;
  15. }
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