[burt@lee ll3]$ cat test_4.txt | java ReverseListTest insertAtTail: first word printList: first word insertAtHead: -second word printList: -second word first word insertAtTail: third word printList: -second word first word third word insertAtHead: -fourth word printList: -fourth word -second word first word third word insertAtTail: and so on printList: -fourth word -second word first word third word and so on reverseList: and so on third word first word -second word -fourth word [burt@lee ll3]$