code: public static String getXNextDay(String date, Integer x) {
  		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
  		String newDate = "";
  		Calendar c = Calendar.getInstance();
  		try {
  			c.setTime(formatter.parse(date));
  			c.add(Calendar.DAY_OF_MONTH, x);
  			c.getTime();
  			newDate = formatter.format(c.getTime());
  		} catch (ParseException e) {
  			e.printStackTrace();
  		}
  		return newDate;
  	}
docs: get the x-next day of date.
  
  @param date given date to get new date from
  @param x type of temporal event to search for
  @return