In this article, you will learn how to get the first and last Element of a Linked list with the help of getFirst() and getLast() of the LinkedList class. If you have programming or even gone to a computer science course you probably know what is a linked list? It's a data structure that allows you to store objects in such a way that you can don't need a big chunk of contiguous memory like another popular data structure array. It works perfectly even if you have a fragmented heap. LinkedList is Java's implementation of this fundamental data structure.