ListNodes
ListNode is a fundamental data structure concept used in computer science. It represents a single element within a linked list. Each ListNode typically contains two key pieces of information: data and a reference (or pointer) to the next ListNode in the sequence. The data can be of any type, such as an integer, string, or a more complex object. The reference, often called a "next" pointer, points to the memory address of the subsequent ListNode. The final ListNode in a linked list will have its next pointer set to null or a special sentinel value, indicating the end of the list.
Linked lists, which are composed of interconnected ListNodes, offer advantages over arrays in certain scenarios. For