Unit 12- OOP

Class

Blueprints for creating objects where they each have attributes and behaviours

Objects

Instance of a class

Methods

Attributes

Inheritance

Inheriting attributes and methods from the parent class

Encapsulation

Prevents certain data from being changed/overridden in the program

Polymorphism

Making a method behave differently for a different subclass

Instantiation

Creating a new object from a class

Public

Access to all code (+)

Protected

Access to members of the same class and child class. (#)

Private

Access to only members of the same class. (-)

Aggregation

When an object is destroyed, the other objects inside won't be destroyed.

Composition

When an object is destroyed, the other objects inside will also be destroyed.

Example of Composition

If we have a school and inside that classrooms. If we destroy the school, the classrooms won't exist

Example of Aggregation

If we have a coach and a player, if the coach is destroyed the player will remain

Overriding

It overrides a method, changing how it behaves

Polymorphism - Method Overloading

Class contains methods of the same name that have different parameters