Date increment days

 public static void main(String[] args) {

         try {
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");

            Date startDate = (Date) format.parse("2012-06-22");;
            String start = format.format(startDate);
            String end = format.format(addDays(startDate, 9));

            System.out.println("Start : " + start);
            System.out.println("End   : " + end);
        } catch (Exception e) {
            e.printStackTrace();
        }

}

public static Date addDays(Date date, int days)
    {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.add(Calendar.DATE, days);
        return cal.getTime();
    }