decrement the month . concode_field_sep int mNumDaysInPrevMonth concode_elem_sep int mOffset concode_elem_sep int mWeekStartDay concode_elem_sep Calendar mCalendar concode_elem_sep int mNumDaysInMonth concode_field_sep void nextMonth concode_elem_sep int getRowOf concode_elem_sep int getNumberOfDaysInMonth concode_elem_sep int getOffset concode_elem_sep int getWeekStartDay concode_elem_sep int getFirstDayOfMonth concode_elem_sep int getColumnOf concode_elem_sep int getYear concode_elem_sep int getDayAt concode_elem_sep int[] getDigitsForRow concode_elem_sep boolean isWithinCurrentMonth concode_elem_sep int getMonth concode_elem_sep void recalculate
void function ( ) { mCalendar . add ( Calendar . MONTH , - 1 ) ; recalculate ( ) ; }