How to insert a node at the end of a Doubly Linked List in Java ?

By | July 9, 2020

In Previous Post, How to insert a node at the beginning of a Doubly Linked List in Java ? we learned how to insert a Node at the beginning of a Doubly LinkedList.

In this post, we will learn How to insert a node at the end of a Doubly Linked List in Java?

Doubly Linked List

Logic is very simple:

If the head is null that means LinkedList is empty so make newNode as head Node else newNode assign to tail’s next and assign tail to newNode’s previous, finally assign newNode to tail.

Below is the complete Source code:

LinkedList.java

 

ClientTest.java

The output of this Program:

—–Print Linked List in Forward Direction——-
10 20 30
—–Print Linked List in Backward Direction——-
30 20 10

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