Yes, LinkedList is a doubly linked list, as the Javadoc mentions :

Doubly-linked list implementation of the List and Deque interfaces. Implements all optional list operations, and permits all elements (including null).

All of the operations perform as could be expected for a doubly-linked list. Operations that index into the list will traverse the list from the beginning or the end, whichever is closer to the specified index.

Answer from Eran on Stack Overflow
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Oracle
docs.oracle.com › en › java › javase › 17 › docs › api › java.base › java › util › LinkedList.html
LinkedList (Java SE 17 & JDK 17)
April 21, 2026 - public class LinkedList<E> extends AbstractSequentialList<E> implements List<E>, Deque<E>, Cloneable, Serializable · Doubly-linked list implementation of the List and Deque interfaces.
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GeeksforGeeks
geeksforgeeks.org › dsa › introduction-to-doubly-linked-lists-in-java
Introduction to Doubly Linked Lists in Java - GeeksforGeeks
April 25, 2023 - To create a doubly linked list, first, we need to define a Node class that has three data members that will store the data stored in the node, the reference to the next node, and the reference to the previous node.
Discussions

Help with Doubly Linked List
That's how you could instantiate one, if you have a class named DoublyLinkedList. DoublyLinkedList isn't a part of the standard library and if you've been tasked with "implementing a doubly linked list" then you would have to create that class yourself. There are plenty of resources online regarding doubly linked lists, simply googling "doubly linked list" will turn up plenty of decent results and would be a good place to start. If you have any specific questions regarding implementing a doubly linked list, feel free to ask them here. More on reddit.com
🌐 r/javahelp
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March 14, 2024
I can't make the double linked list my assignment is requesting, is this a bad sign for me as a programmer?
Jesus mate. You don't need to question your ambitions just because you're stuck on an assignment your peers seem to pass. Ask for some damn help. Learning by yourself can only get you so far. If I'm stuck, I re-read the assignment, make sure to create a solid foundation and solve exactly as stated in the assignment. Last resort you can try reading and understanding what the junit tests do. Most of all, get some damn sleep More on reddit.com
🌐 r/AskProgramming
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October 3, 2021
Linked List problems : need help to develop an understanding
Following questions would help. Did you study Comp Organization, Architecture ? A machine memory model? Those are necessary to understand the physical reality of LinkedList. Essentially memory and Pointers. This book here talks about Linked List in absolute details. https://theswissbay.ch/pdf/Gentoomen%20Library/Algorithms/Algorithms%20in%20C.pdf#page=32 The 2nd OG book. The first OG book would be Knuth, and here it is describing LinkedList. www.haio.ir/app/uploads/2022/01/The-Art-of-Computer-Programming-Vol.-1-Fundamental-Algorithms-3rd-Edition-by-Donald-E.-Knuth-z-lib.org_.pdf#page=254 Incidentally Sidgewick got his PHD from Donald Knuth. More on reddit.com
🌐 r/developersIndia
9
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June 6, 2024
ELI5: single and double linked lists
Single linked list: you can only traverse the list in one direction. Each node only knows where the next node "downstream" is...it doesn't know where it's upstream node is. You can only traverse it in one direction by following nodes downstream. Double linked list: you can go in either direction, because each node knows *both* ("double") the upstream and downstream nodes. More on reddit.com
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June 6, 2023
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Princeton University
algs4.cs.princeton.edu › 13stacks › DoublyLinkedList.java.html
DoublyLinkedList.java
August 11, 2022 - /*****************************... Dependencies: StdOut.java * * A list implemented with a doubly linked list. The elements are stored * (and iterated over) in the same order that they are inserted....
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Medium
medium.com › @ariel.salem1989 › data-structures-linked-list-doubly-linked-list-f8cf1b1c9f28
Data Structures — Linked List & Doubly Linked List | by Ariel Salem | Medium
May 30, 2017 - Since there are more links to consider when adding and removing Nodes, these operations are potentially not as efficient as in a regular Linked List. Much like Linked Lists , Doubly Linked List are Nodes linked together through pointed references
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YouTube
youtube.com › take u forward
L3. Introduction to Doubly LinkedList | Insertions and Deletions - YouTube
Convert Array to DLL: https://tinyurl.com/3fj6tvrt Deletion of head of the DLL: https://tinyurl.com/mubc6f26Deletion of tail of the DLL: https://tinyurl.com/
Published: November 26, 2023
Views: 161K
Find elsewhere
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Scaler
scaler.com › home › topics › doubly linked list in java
Doubly Linked List in Java - Scaler Topics
April 19, 2024 - The doubly linked list is a data structure that has a set of linked nodes attached to each other in a sequential manner such that once can traverse both ways from a node (i.e. if we are at a node X we can go to the node previous of X or we can go to the node that is followed by X. Note: Each ...
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Codecademy
codecademy.com › learn › linear-data-structures-java › modules › doubly-linked-lists-java › cheatsheet
Linear Data Structures: Doubly Linked Lists Cheatsheet | Codecademy
Doubly linked lists in Java utilize an updated Node class that has a pointer to the previous node. This comes with additional setter and getter methods for accessing the previous node.
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W3Schools
w3schools.com › dsa › dsa_data_linkedlists_types.php
DSA Linked Lists Types
It takes up less space in memory because each node has only one address to the next node, like in the image below. A doubly linked list has nodes with addresses to both the previous and the next node, like in the image below, and therefore takes ...
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Oracle
docs.oracle.com › javase › 8 › docs › api › java › util › LinkedList.html
LinkedList (Java Platform SE 8 )
July 21, 2026 - Java™ Platform Standard Ed. 8 ... public class LinkedList<E> extends AbstractSequentialList<E> implements List<E>, Deque<E>, Cloneable, Serializable · Doubly-linked list implementation of the List and Deque interfaces.
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Medium
medium.com › @saumya14s › doubly-linked-list-5a0425b94d66
Doubly Linked List in Java. A doubly linked list in Java is a data… | by Saumya14 | Medium
May 21, 2025 - More Complex: Insertion and deletion logic is more complex than singly linked lists. Java’s standard library provides a doubly linked list implementation: java.util.LinkedList.
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W3Schools
w3schools.com › java › java_linkedlist.asp
Java LinkedList
LinkedList stores elements as linked nodes, making inserts and removals fast.
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OpenDSA
opendsa-server.cs.vt.edu › ODSA › Books › CS3 › html › ListDouble.html
5.6. Doubly Linked Lists — CS3 Data Structures & Algorithms
In our implementation, curr will point to the current position (or to the trailer node if the current position is at the end of the list). Here is the complete implementation for a Link class to be used with doubly linked lists.
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TutorialsPoint
tutorialspoint.com › java_data_structures › java_data_structures_doubly_linked_lists.htm
Java Data Structures - Doubly linked lists
Doubly Linked List contains a link element called first and last. Each link carries a data field(s) and two link fields called next and prev. Each link is linked with its next link using its next link.
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Reddit
reddit.com › r/javahelp › help with doubly linked list
r/javahelp on Reddit: Help with Doubly Linked List
March 14, 2024 -

Hey guys, I need some help implementing a doubly linked list for a school project. My question is how do I actually create a Doubly Linked List? Would it be

DoublyLinkedList<String> list = new DoublyLinkedList<String>();  

Thanks for the help.

Top answer
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That's how you could instantiate one, if you have a class named DoublyLinkedList. DoublyLinkedList isn't a part of the standard library and if you've been tasked with "implementing a doubly linked list" then you would have to create that class yourself. There are plenty of resources online regarding doubly linked lists, simply googling "doubly linked list" will turn up plenty of decent results and would be a good place to start. If you have any specific questions regarding implementing a doubly linked list, feel free to ask them here.
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Baeldung
baeldung.com › home › java › java list › creating a custom linked list data structure in java
Creating a Custom Linked List Data Structure in Java | Baeldung
April 22, 2025 - Circular linked list – The last node’s reference points back to the head, forming a loop. It can be singly or doubly linked.
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Unstop
unstop.com › home › blog › tcs nqt coding questions 2026 with answers & pyqs
TCS NQT Coding Questions 2026 with Answers & PYQs
March 17, 2026 - #include #include using namespace std; class DoubleNode { public: int doubledata; DoubleNode* doubleprev; DoubleNode* doublenext; DoubleNode(int data) { this->doubledata = data; this->doubleprev = nullptr; this->doublenext = nullptr; } }; class Node { public: int data; Node* next; Node(int data) { this->data = data; this->next = nullptr; } }; void createNodeList(vector<vector>& arr, vector<Node*>& nodeList) { for (int i = 0; i < arr.size(); i++) { Node* head = nullptr; Node* prev = nullptr; for (int j = 0; j < arr[0].size(); j++) { Node* newNode = new Node(arr[i][j]); if (!head) { head = newNo
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GeeksforGeeks
geeksforgeeks.org › dsa › doubly-linked-list
Doubly Linked List Tutorial - GeeksforGeeks
September 19, 2025 - Each node in a Doubly Linked List contains the data it holds, a pointer to the next node in the list, and a pointer to the previous node in the list.
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PREP INSTA
prepinsta.com › home › dsa in java › java program for insertion at the beginning of a doubly linked list
Insertion at the Beginning of a Doubly Linked List in Java​ | PrepInsta
November 27, 2025 - Doubly linked list contains nodes where each node has: ... Insertion at the beginning means creating a new node and placing it before the current head, making it the new head of the list.
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InfoWorld
infoworld.com › home › software development › programming languages › java
Data structures and algorithms in Java, Part 5: Doubly-linked lists | InfoWorld
June 8, 2018 - DECLARE CLASS Node DECLARE STRING name DECLARE Node next DECLARE Node prev END DECLARE DECLARE Node topForward DECLARE Node temp DECLARE Node topBackward topForward = NEW Node topForward.name = "A" temp = NEW Node temp.name = "B" topBackward = NEW Node topBackward.name = "C" // Create forward singly-linked list topForward.next = temp temp.next = topBackward topBackward.next = NULL // Create backward singly-linked list topBackward.prev = temp temp.prev = topForward topForward.prev = NULL // Delete Node B. temp.prev.next = temp.next; // Bypass Node B in the forward singly-linked list. temp.next.prev = temp.prev; // Bypass Node B in the backward singly-linked list. END · The example Java application DLLDemo demonstrates how to create, insert, and delete nodes in a doubly-linked list.