LinkedList in Java

Java LinkedList class is doubly-linked list implementation of the List and Deque interfaces.

Single and Doubly Linked List

Properties: 
--Permits all elements including duplicates and NULL.
--LinkedList maintains the insertion order of the elements.
--It is not synchronized.
--the manipulation is fast because no shifting is required.
How to create:
LinkedList<String> linkedList = new LinkedList<>();

Methods: boolean add(Object item), void add(int index, Object item), boolean addAll(Collection c), void addFirst(Object item), void addLast(Object item), void clear(), Object clone(), Object getFirst(), Object getLast(), Object poll() etc.

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