void function ( ) { throw new UnsupportedOperationException ( ) ; }
removes from the underlying collection the last element returned by the iterator optional operation . this method can be called only once per call to next . the behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method . concode_field_sep Object thing concode_elem_sep boolean gone concode_field_sep Object next concode_elem_sep boolean hasNext