How do you remove duplicates from a singly linked list?

How do you remove duplicates from a singly linked list?

Algorithm

1. Create a class Node which has two attributes: data and next.
2. Create another class RemoveDuplicate which has two attributes: head and tail.
3. addNode() will add a new node to the list:
4. removeDuplicate() will remove duplicate nodes from the list.
5. display() will display the nodes present in the list:

How do you remove duplicates from a singly linked list in Java?

Algorithm

1. Create a class Node which has two attributes: data and next. Next is a pointer to the next node in the list.
2. Create another class RemoveDuplicate which has two attributes: head and tail.:
3. addNode() will add a new node to the list: Create a new node.

Can a list accept null?

Yes, you can always use null instead of an object. Just be careful because some methods might throw error. It would be 1. itemsList.

How to remove duplicate elements from a singly linked list?

Loop through the list till current points to null. Check whether current?s data is equal to index’s data that means index is duplicate of current. Since index points to duplicate node so skip it by making node next to temp to will point to node next to index, i.e. temp.next = index.next.

How to remove duplicates from a list in Java?

List after removing duplicate nodes: In the above list, node 2 is repeated thrice, and node 1 is repeated twice. Node current will point to head, and index will point to node next to current. Start traversing the list till a duplicate is found that is when current’s data is equal to index’s data.

How to remove duplicate nodes from a list?

removeDuplicate () will remove duplicate nodes from the list. Define a new node current which will initially point to head. Node temp will point to current and index will always point to node next to current. Loop through the list till current points to null.

How is data stored in a linked list?

Link − Each link of a linked list can store a data called an element. Next − Each link of a linked list contains a link to the next link called Next. Each element in a linked list is called as “Node”. Each node consists of its own data and the address of the next node and forms a chain. Linked Lists are used to create trees and graphs.