Calculate Last Day of Month
GregorianCalendar calendar = new GregorianCalendar(); calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
GregorianCalendar calendar = new GregorianCalendar(); calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));