OOP {
O : Object,
O : Oriented,
P : Programming
}
Why OOP ???
Modularity
Code Reuse
Maintainability
Readability
Class & Object
A class is a blueprint for creating objects
An objects is refer to instance by which we can access all the property and methods of CLASS.
OOP Concepts
Encapsulation
Abstruction
Polymorphisom
Inheritance
Encapsulation
Abstruction
Hides the complexity and present essential features without including the background implementation
Several ways to achieve abstraction in OOP
- Interface
- Abstract class
Encapsulation
Encapsulation
Combines properties and method in same object
Encapsulation
Inheritance
Allows code re-use by creating parent and child relationship.
Share a set of attribute and method between parent and child class
Encapsulation
Polymorphism
The ability to appear in many forms
Two types :
- Overloading - Compile time
- Overriding - Runtime
Adds dynamic nature and flexibility in code
Encapsulation
Access Modifier
Encapsulation
Interface
An interface defines a public API, nothing is private about it. It's like a contract
A class to implement an interface called can-do (or -able ).
Interface enforce certain properties on an object (class)
Encapsulation
Interface VS Abstract Class
An interface is pure form of abstraction
An abstract class is a compromise between Abstraction and Concrete implementation.
Example :
- Interface: Barkable, Runable, Flyable, Swimable.
- Abstract Animal class and the sub class: Bolt, angrybird and Nemo.
- Abstract class and the sub class Machine: McQueen, Siddeley.
Encapsulation
Interface VS Abstract Class cont.
References
All Images are taken from online
You can checkout this blog
Plenty of resources out there, so feel free to search and give away of your confusion about any topics
Encapsulation
Anyone Have Any
Encapsulation
ME {
name : Emran Ul Hadi,
find-me : emran.github.io
photo :
}
