Remove first and last element from LinkedList example

In this example we shall show you how to remove the first and the last element of a LinkedList. To remove the first and the last element of a LinkedList one should perform the following steps:

• Create a new LinkedList.
• Populate the list with elements, with the add(E e) API method of the LinkedLink.
• Invoke the removeFirst() API method of the LinkedList. It removes and returns the first element of the list. Subsequent elements are shifted the to the left.
• Invoke the removeLast() API method of the LinkedList. It removes and returns
  the last element of the list,

as described in the code snippet below.

package com.javacodegeeks.snippets.core;

import java.util.LinkedList;
 
public class RemoveFirstLastElementLinkedList {
 
  public static void main(String[] args) {
 
    // Create a LinkedList and populate it with elements
    LinkedList linkedList = new LinkedList();
    linkedList.add("element_1");
    linkedList.add("element_2");
    linkedList.add("element_3");
    linkedList.add("element_4");
    linkedList.add("element_5");
 
    System.out.println("LinkedList contains : " + linkedList);
 
    /*
     * Object removeFirst() operation removes and returns the first 
     * element of LinkedList. Subsequent elements are shifted the to 
     * the left
     */
     Object firstElement = linkedList.removeFirst();
     System.out.println(firstElement + " has been removed from LinkedList");
     System.out.println("LinkedList contains : " + linkedList);
 
     /*

* Object removeLast() operation removes and returns the last element 

* of LinkedList

*/

Object lastElement = linkedList.removeLast();

System.out.println(lastElement + " has been removed from LinkedList");

System.out.println("LinkedList contains : " + linkedList);
  }
}

Output:

LinkedList contains : [element_1, element_2, element_3, element_4, element_5]
element_1 has been removed from LinkedList
LinkedList contains : [element_2, element_3, element_4, element_5]
element_5 has been removed from LinkedList
LinkedList contains : [element_2, element_3, element_4]

 
This was an example of how to remove the first and the last element of a LinkedList in Java.