What is the method for implementing a linked list in Java?

There are two methods for implementing linked lists in Java: singly linked list and doubly linked list.

1. Singly Linked List: Each node contains a data element and a reference to the next node. The characteristic of a singly linked list is that each node has only one pointer field, which points to the next node. Common operations on a singly linked list include:
2. Insert node: Put a node in a specified position.
3. Delete node: Remove the node at a specified position.
4. Search nodes: Find nodes based on specified conditions.
5. Traverse the linked list: Visit the nodes in the linked list in order.
6. Doubly Linked List: Each node contains a data element, a reference to the previous node, and a reference to the next node. The characteristic of a doubly linked list is that each node has two pointer fields, one pointing to the previous node and one pointing to the next node. Common operations on a doubly linked list include:
7. Insert node: Inserting a node at a specified position.
8. Remove Node: Remove a node at the specified position.
9. Search node: Find nodes based on specified conditions.
10. Traverse the linked list: nodes in the list can be traversed in either forward or backward order.

In Java, custom classes can be used to implement linked lists, or the LinkedList class provided by the Java collection framework can be used. LinkedList is the implementation of a doubly linked list in Java, it provides a series of methods to manipulate the list, such as add, remove, get, etc. Additionally, the ArrayList class in the Java collection framework can also be used to achieve similar functionality to a linked list, as ArrayList uses an array to implement it, allowing for resizing the array to mimic the operation of expanding and shrinking a linked list.