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Computer Science

Describe a 'Class'

A blueprint of the properties and behaviours of an object.

Describe an 'Object'

A representation of a real world entity

Define a 'Constructor'

A method which is automatically called when an object of a class has been instantiated

Define 'Inheritance'

Where a subclass inherits the attributes and behaviours from a parent (super) class

Define 'Encapsulation'

Joins together attributes and methods to manipulate data. It does this so data is protected.

Define 'Polymorphism'

Something that ooccurs in many different forms

Give advantages and disadvantages of using OOP over procedural programming

Advantages - Classes and objects promote a lot of code reuse
- Allows new classes to extend old ones reducing duplication of code


Disadvantages - Can be complicated to learn due to many concepts e.g. inheritance, encapsulation, polymorphism etc.

Give advantages and disadvantages of using procedural programming over OOP

Advantages: Easy to understand
- Its quicker to write smaller programs as you don't need to define classes ond objects


Disadvantages: There's more code repetition (even with subroutines)

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