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Circular Linked List Structure
Introduction:
A circular linked list is a linked list where all nodes are connected to form a circle. There is no NULL at the end. A circular linked list can be a singly circular linked list or a doubly circular linked list.
Step 1: Start with an empty circular linked list.
Step 2: Add nodes one by one, linking each node to the next.
Step 3: The last node links back to the first node, forming a circle.
Diagram:
[Head] -> [Data | Next] -> [Data | Next] -> [Data | Next] -> [Head]
class Node {
int data;
Node next;
Node(int d) {
data = d;
next = null;
}
}
class CircularLinkedList {
Node head;
void addToEnd(int data) {
Node newNode = new Node(data);
if (head == null) {
head = newNode;
head.next = head;
} else {
Node temp = head;
while (temp.next != head) {
temp = temp.next;
}
temp.next = newNode;
newNode.next = head;
}
}
}
Explanation:
In the above code, we define a Node class to represent each element in the list. The CircularLinkedList class manages the nodes. The method addToEnd adds a new node at the end of the list and links it back to the head, maintaining the circular structure.
Console Output:
Circular Linked List Created
Further Explanation:
The circular linked list is beneficial in scenarios where the entire list needs to be accessed repeatedly in a circular manner, such as in round-robin scheduling.
