A-LevelComputer ScienceObject-Oriented Programming (OOP)May/June 2025Paper 4 Q329 Marks
A program stores data in a linked list that is designed using Object-Oriented Programming (OOP). The class Node stores data about the nodes. Node TheData : Integer stores the integer data NextNode : Node stores the next node in the linked list Constructor() initialises TheData to its parameter value, initialises NextNode to a null value GetData() returns TheData GetNextNode() returns NextNode SetNextNode() takes an object of type Node as a parameter and stores it in NextNode The class LinkedList stores the linked list. LinkedList HeadNode : Node stores the first node in the linked list Constructor() initialises HeadNode to a null value InsertNode() creates a new node using its integer parameter. Sets this node as the new head node and updates NextNode RemoveNode() finds the first node that contains its integer parameter and removes this node from the linked list Traverse() concatenates and returns the integer data in each node in the linked list
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