>>>is there any limit/constraint on the maximum number of nodes that a linked list can have?
>>>a linked list does not have to be implmented with a pointer. what else can be implementeation of linked lists?
>>>how can a singly linked list be implemented so that insertion requires no test for whether head is null?
>>>consider the move-to-front, transpose, count and ordering methods. In what case is a list mantained by these methods not changed?