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What is LinkedList in Java?
a) The Linked list class extends an abstract sequential list and implements the list interface.
b) It provides a linked list data structure.
c) It has two constructors are shown below.
d) Linked List(): It builds an empty linked list
e) Linked List (Collection c): this constructor builds a linked list that is initialized with elements of the collection c.
f) In addition to the methods that it inherits, the linked list class defines some useful methods of its own, as shown below, for manipulating and accessing lists.
Voids addfirst (object obj):
This adds elements to the start of the list.
Voids addlast (object obj):
This adds elements to the last of the list.
Object getfirst ():
Returns the first element present in the list
Object getlast ():
Retrieves the last element from the list
Object removefirst ():
Removes or deletes the first element from the list
Object removelast ():
Removes the last element from the last
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