• Linked list
– Order Erimin with No Prescription, Linear collection of self-referential class objects, called nodes
– Connected by pointer links
– Accessed via a pointer to the first node of the list
– Subsequent nodes are accessed via the link-pointer member of the current node
– Link pointer in the last node is set to null to mark the list’s end
• Use a linked list instead of an array when
– You have an unpredictable number of data elements
– Your list needs to be sorted quickly
• Types of linked lists:
– Singly linked list
• Begins with a pointer to the first node
• Terminates with a null pointer
• Only traversed in one direction
– Circular, singly linked
• Pointer in the last node points back to the first node
– Doubly linked list
• Two “start pointers” – first element and last element
• Each node has a forward pointer and a backward pointer
• Allows traversals both forwards and backwards
– Circular, doubly linked list
• Forward pointer of the last node points to the first node and backward pointer of the first node points to the last node
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Raman said,
October 6, 2007 @ 9:01 amHow to find loop in linked list?