question: returns end - start . concode_field_sep int start concode_elem_sep int end concode_elem_sep char[] buffer concode_field_sep int getStart concode_elem_sep char[] getBuffer concode_elem_sep void setStart concode_elem_sep void adjust concode_elem_sep boolean hasMore concode_elem_sep void setEnd concode_elem_sep int getEnd
target: int function ( ) { return end - start ; }