adds a node to the end of the list . concode_field_sep LinkedListNode<E> head concode_field_sep LinkedListNode<E> getFirst concode_elem_sep void clear concode_elem_sep String toString concode_elem_sep LinkedListNode<E> getLast concode_elem_sep LinkedListNode<E> addFirst concode_elem_sep LinkedListNode<E> addFirst
LinkedListNode < E > function ( LinkedListNode < E > arg0 ) { return arg0 . insert ( head , head . previous ) ; }