Many of the special cases of linked list operations can be eliminated by including a dummy element at the front of the list. This ensures that there are no special cases for the beginning of the list and renders both insertBeginning() and removeBeginning() unnecessary, i.e., every element or node is next to another node (even the first node is next to the dummy node). In this case, the first useful data in the list will be found at list.firstNode.next.
Many of the special cases of linked list operations can be eliminated by including a dummy element at the front of the list This ensures that there are no special cases for the beginning of the list and renders both insertBeginning() and removeBeginning() unnecessary ie every element or node is next to another node (even the first node is next to the dummy node) In this case the first useful data in the list will be found at listfirstNodenext