LinkedList

LinkedList is a doubly-linked list implementation of the List and Deque interfaces. Here is the list of the tutorials published on LinkedList class.
LinkedList is an implementation of List interface. 

Example:

import java.util.*;
public class LinkedListExample {
     public static void main(String args[]) {

         /* Linked List Declaration */
         LinkedList<String> linkedlist = new LinkedList<String>();

         /*add(String Element) is used for adding 
          * the elements to the linked list*/
         linkedlist.add("Item1");
         linkedlist.add("Item5");
         linkedlist.add("Item3");
         linkedlist.add("Item6");
         linkedlist.add("Item2");

         /*Display Linked List Content*/
         System.out.println("Linked List Content: " +linkedlist);

         /*Add First and Last Element*/
         linkedlist.addFirst("First Item");
         linkedlist.addLast("Last Item");
         System.out.println("LinkedList Content after addition: " +linkedlist);

         /*This is how to get and set Values*/
         Object firstvar = linkedlist.get(0);
         System.out.println("First element: " +firstvar);
         linkedlist.set(0, "Changed first item");
         Object firstvar2 = linkedlist.get(0);
         System.out.println("First element after update by set method: " +firstvar2);

         /*Remove first and last element*/
         linkedlist.removeFirst();
         linkedlist.removeLast();
         System.out.println("LinkedList after deletion of first and last element: " +linkedlist);

         /* Add to a Position and remove from a position*/
         linkedlist.add(0, "Newly added item");
         linkedlist.remove(2);
         System.out.println("Final Content: " +linkedlist); 
     }
}

Output:

Linked List Content: [Item1, Item5, Item3, Item6, Item2]
LinkedList Content after addition: [First Item, Item1, Item5, Item3, Item6, Item2, Last Item]
First element: First Item
First element after update by set method: Changed first item
LinkedList after deletion of first and last element: [Item1, Item5, Item3, Item6, Item2]
Final Content: [Newly added item, Item1, Item3, Item6, Item2]