What is Linked list Operation in Java?

Linked lists are fundamental data structures that store and manipulate data efficiently in computer programming. They consist of nodes, each containing data and a reference to the next node in the list. In this article, we will explore various operations on a linked list in Java, including creating, inserting, deleting, and traversing elements. Each operation will be accompanied by a code snippet and its corresponding input-output examples.

Creating a Linked List:

To create a linked list, we define a class representing a node and another class to manage the list. Here's an example of creating a linked list in Java:

Inserting an Element:

To insert an element into a linked list, we need to modify the appropriate references. Here's a method to insert a node at the beginning of the list:

Deleting an Element:

Deleting an element from a linked list involves adjusting the references of the surrounding nodes. Here's a method to delete a node with a specific value:

Traversing a Linked List:

To access and display the elements of a linked list, we can iterate through each node and print its data. Here's a method to traverse the list:

Linked lists provide a dynamic and efficient way to store and manipulate data in a linked structure. In this article, we explored several essential operations on linked lists in Java, including creating a linked list, inserting elements, deleting elements, and traversing the list. By understanding these operations, you can manipulate linked lists effectively to suit your programming needs.

It is important to note that the code snippets provided in this article are simplified implementations for educational purposes. In a real-world scenario, additional error handling and edge cases should be considered to ensure the robustness and reliability of the linked list implementation.

Here's a complete Java program that demonstrates the operations on a linked list, along with their corresponding input-output examples:

LinkedListOperations.java

Output:

Linked List: 10 20 30
Linked List after inserting at the beginning: 5 10 20 30
Linked List after deleting an element: 5 10 30