java singly linked list example 2

1import java.util.*;
2public class LinkedListExample {
3     public static void main(String args[]) {
4
5       /* Linked List Declaration */
6       LinkedList<String> linkedlist = new LinkedList<String>();
7
8       /*add(String Element) is used for adding 
9        * the elements to the linked list*/
10       linkedlist.add("Item1");
11       linkedlist.add("Item5");
12       linkedlist.add("Item3");
13       linkedlist.add("Item6");
14       linkedlist.add("Item2");
15
16       /*Display Linked List Content*/
17       System.out.println("Linked List Content: " +linkedlist);
18
19       /*Add First and Last Element*/
20       linkedlist.addFirst("First Item");
21       linkedlist.addLast("Last Item");
22       System.out.println("LinkedList Content after addition: " +linkedlist);
23
24       /*This is how to get and set Values*/
25       Object firstvar = linkedlist.get(0);
26       System.out.println("First element: " +firstvar);
27       linkedlist.set(0, "Changed first item");
28       Object firstvar2 = linkedlist.get(0);
29       System.out.println("First element after update by set method: " +firstvar2);
30
31       /*Remove first and last element*/
32       linkedlist.removeFirst();
33       linkedlist.removeLast();
34       System.out.println("LinkedList after deletion of first and last element: " +linkedlist);
35
36       /* Add to a Position and remove from a position*/
37       linkedlist.add(0, "Newly added item");
38       linkedlist.remove(2);
39       System.out.println("Final Content: " +linkedlist); 
40     }
41}