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Northern IrelandSoftware Systems DevelopmentQuick questions
AS 1 Introduction to Object Oriented Development
Quick questions on Object oriented concepts: classes, objects, attributes and methods - CCEA A-Level Software Systems Development
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is instantiation?Show answer
Instantiation is the act of creating an object from a class. In most languages a constructor is called, often with the keyword new, which allocates memory for the new object and sets up its initial attribute values. Each instantiation produces a distinct object, independent of the others.
What is q1?Show answer
Define the term object and state how it relates to a class. [2 marks]
What is q2?Show answer
A Dog class has attributes name and age and a method bark(). Write a statement that instantiates a Dog object called rex, and a statement that calls its bark() method. [2 marks]
What is q3?Show answer
Explain why grouping attributes and methods together in a class is described as modelling a real-world entity. [2 marks]
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