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Java – Add elements at beginning and end of LinkedList example

Last Updated: September 11, 2022 by Chaitanya Singh | Filed Under: java

Example

In this example we will learn how to add elements at the beginning and end of a LinkedList. We will be using addFirst() and addLast() method of LinkedList class. Method definition and description are as follows:

1) public void addFirst(E e): Inserts the specified element at the beginning of this list.
2) public void addLast(E e): Appends the specified element to the end of this list.

Complete Code:

import java.util.LinkedList;

public class AddExample {
 public static void main(String[] args) {
    // Creating LinkedList of String Elements
    LinkedList<String> linkedlist = new LinkedList<String>();
 
    //Populating it with String values
    linkedlist.add("AA");
    linkedlist.add("BB");
    linkedlist.add("CC");
    linkedlist.add("DD");
    linkedlist.add("EE");

    //Displaying LinkedList elements
    System.out.println(linkedlist);
 
    //Adding an element at the beginning 
    linkedlist.addFirst("FIRST");
 
    //Displaying the List after addition
    System.out.println(linkedlist);
 
    //Adding an element at the end of list 
    linkedlist.addLast("LAST");
 
    //Displaying the final list
    System.out.println(linkedlist);
 }
}

Output:

[AA, BB, CC, DD, EE]
[FIRST, AA, BB, CC, DD, EE]
[FIRST, AA, BB, CC, DD, EE, LAST]

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Tags: Collections, Java-LinkedList

About the Author

I have 15 years of experience in the IT industry, working with renowned multinational corporations. Additionally, I have dedicated over a decade to teaching, allowing me to refine my skills in delivering information in a simple and easily understandable manner.

– Chaitanya

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