Overview

object-oriented programming is an approach to programming thatbreaks a programming problem into objects that interact with each other.Objects are created from templates known as classes. You can think of a class asthe blueprint of a building. An object is the actual "building" that we build basedon the blueprint.C# is an object-oriented programming language. The four basic principles of object-oriented programming are:Abstraction Modelling the relevant attributes and interactions of entities as classes to define an abstract representation of a system.Encapsulation Hiding the internal state and functionality of an object and only allowing access through a public set of functions.Inheritance Ability to create new abstractions based on existing abstractions.Polymorphism Ability to implement inherited properties or methods in different ways across multiple abstractions.Object oriented programming (OOP) is a programming structure where programs are organized around objects as opposed to action and logic. This is essentially a design philosophy that uses a different set of programming languages such as C#. Understanding OOP concepts can help make decisions about how you should design an application and what language to use.Everything in OOP is placed together as self-sustainable "objects." An object is a combination of variables, functions, and data that performs a set of related activities. When the object performs those activities, it defines the object's behaviour. In addition, an object is an instance of a class.

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