LinkedList in Java
What Is It?
A LinkedList in Java is a type of list that stores elements in a doubly-linked list format. This structure allows for efficient insertion and removal of elements from any position in the list.
How It WorksLinkedList is also part of the java.util package and requires an import statement. It can store any types of objects, just like ArrayList, but the way it manages elements is different, allowing each element to be linked to both the previous and next element in the list.
Syntax for Creating a LinkedList
Here’s how you create a LinkedList:
Example of Using a LinkedList
Let’s create a LinkedList, add some elements, and then demonstrate adding and removing elements:
In this example, we create a LinkedList instance, add and remove elements, and use methods like addFirst() and addLast() to add elements to the beginning and end of the list, respectively. The getFirst() and getLast() methods are used to access the first and last elements in the list.
