Insertion at the End of a Circular Linked List in JAVA
February 18, 2023
JAVA Program to Insert a Node in the end of a Circular Linked List
Circular linked list is a very flexible data structure where you can traverse through it without it being at a random location. Inserting a node at the end of the circular linked means replacing the address of the last node with the address of new node and then making the new node point towards the head node.
Below in this page we will see two methods for insertion at the end of a circular linked list in java.
Steps to insert a node at the End of a Circular Linked List
There are can be two conditions here –
The circular linked list is empty –
If the circular linked is empty which means the head is null then the new node will be added as head.
Both the head and the tail will point towards the head because there is only one element.
The circular linked list is not empty –
A head is the first node of the circular linked list which can be considered as the starting of the list and points towards the next element.
The tail is the last element of the circular linked list and it point towards the head making the list appear circular.
If the list is not empty which means if the list has elements the last node will be the tail.
To insert an element in the end of circular linked list, the present tail should be replaced by the new node.
By changing the node referred by the current tail to the newly added node, it has become the new tail.
Now, make the new tail point towards the head of the circular linked list and the element is added in the end of the circular linked list.
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