在Java Android日历上设置预订的开始和结束日期

Question

我正在尝试使用DatePicker / Calendar设置预订的开始和结束日期，并在textview中显示结果。到目前为止，输出只显示两次相同的日期，我错过了什么？假设我想设置从x date到y date的预约...我如何使用Calendar类设置它？

Plllleeeease指出我正确的方向！

由于

    }

    //Get an instance of Calendar and DateFormat class, and get current date from the system using OnClick method
    Calendar startVacation = Calendar.getInstance();
    Calendar endVacation = Calendar.getInstance();
    DateFormat fmtDate = DateFormat.getDateInstance();
    DateFormat fmtDateEnd = DateFormat.getDateInstance();
    DatePickerDialog.OnDateSetListener startVaca = new DatePickerDialog.OnDateSetListener() {

        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear,
                int dayOfMonth) {
            // TODO Auto-generated method stub
            startVacation.set(Calendar.YEAR, year);
            startVacation.set(Calendar.MONTH, monthOfYear);
            startVacation.set(Calendar.DAY_OF_MONTH, dayOfMonth);
        }
    };

    DatePickerDialog.OnDateSetListener endVaca = new DatePickerDialog.OnDateSetListener() {

        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear,
                int dayOfMonth) {
            // TODO Auto-generated method stub
            endVacation.set(Calendar.YEAR, year);
            endVacation.set(Calendar.MONTH, monthOfYear);
            endVacation.set(Calendar.DAY_OF_MONTH, dayOfMonth);
            reservation.setText("You have reserved the " + cabinId + " starting on " + fmtDate.format(startVacation.getTime()) + " and ending on " + fmtDateEnd.format(endVacation.getTime()));
        }
    };

}