class Dateutil {

  /**
     * add's n Days to a given Date
     *
     * @param d - date
     * @param n - number of Days which should be added
     * @return
     */
  public static Date add(Date d, int n) {
      Calendar cal = Calendar.getInstance();
      cal.setTime(d);
      cal.add(Calendar.DATE, n);
      Date ret = cal.getTime();
      return ret;
   }
}