question: increases a month in the date for one . if the month is equal to 12 it increases year for one and sets month to 1 . concode_field_sep int month concode_elem_sep int year concode_elem_sep int day concode_field_sep void setMonth concode_elem_sep boolean isThirtyDayMonth concode_elem_sep void dayPassed concode_elem_sep boolean isThirtyOneDayMonth concode_elem_sep void daysOfMonth concode_elem_sep boolean isLeapYear concode_elem_sep void setYear concode_elem_sep int getDay concode_elem_sep boolean equal concode_elem_sep int getYear concode_elem_sep void setDay concode_elem_sep String toString concode_elem_sep int getMonth
target: void function ( ) { if ( month == 12 ) { month = 1 ; year ++ ; } else { month ++ ; } }