LinkedList Definition:An ordered set of data elements, each containing a link to its successor (and sometimes its predecessor).
Linked lists are among the simplest and most common data structures. They can be used to implement several other common abstract data types, including lists (the abstract data type), stacks, queues, associative arrays, and S-expressions, though it is not uncommon to implement the other data structures directly without using a list as the basis of implementation.
Types of linked list:1)single linked list.2)double linked list.3)circular linked list.
Example:Node node1 = new Node();
Node node2 = new Node();
LinkedList list = new LinkedList();
//then my node1 will know who it's next is:
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