malloc: allocate n bytes
calloc: allocate m times n bytes initialized to 0
1. RDBMS Array (i.e. Array of structures)
2. Network data model Graph
3. Hierarchical data model Trees.
Definitions of member functions for the Linked List class are contained in the LinkedList.cpp file.
A linked list application can be organized into a header file, source file and main application file. The first file is the header file that contains the definition of the NODE structure and the LinkedList class definition. The second file is a source code file containing the implementation of member functions of the LinkedList class. The last file is the application file that contains code that creates and uses the LinkedList class.
The appendNode() member function places a new node at the end of the linked list. The appendNode() requires an integer representing the current data of the node.
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