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OOP OBJECT ORIENTED PROGRAMMING LANGUAGE

OOP OBJECT ORIENTED PROGRAMMING LANGUAGE 


Object-oriented programming (OOP) is a programming paradigm based on the concept of "objects", which may contain data, in the form of fields, often known as attributes; and code, in the form of procedures, often known as methods. For example, a person is an object which has certain properties such as height, gender, age, etc. It also has certain methods such as move, talk, and so on.



Example :

suppose we want to make a application for a car. in this case vehicle is our class for .  in this programming  , object is our car  now we want o create method that

speed up down so we will need orient all method in this application according to our object so that programmer can easily orient all method according  to this object. for this most programming language developed in form of object oriented programming language.




Object

This is the basic unit of object-oriented programming. That is both data and function that operate on data are bundled as a unit called an object.

Class

When you define a class, you define a blueprint for an object. This doesn't actually define any data, but it does define what the class name means, that is, what an object of the class will consist of and what operations can be performed on such an object.

OOP has four basic concepts on which it is totally based. Let's have a look at them individually −


  •  Abstraction − It refers to, providing only essential information to the outside world and hiding their background details. For example, a web server hides how it processes data it receives, the end user just hits the endpoints and gets the data back.

  •  Encapsulation − Encapsulation is a process of binding data members (variables, properties) and member functions (methods) into a single unit. It is also a way of restricting access to certain properties or component. The best example for encapsulation is a class.

  •  Inheritance − The ability to create a new class from an existing class is called Inheritance. Using inheritance, we can create a Child class from a Parent class such that it inherits the properties and methods of the parent class and can have its own additional properties and methods. For example, if we have a class Vehicle that has properties like Color, Price, etc, we can create 2 classes like Bike and Car from it that have those 2 properties and additional properties that are specialized for them like a car has number Of Windows while a bike cannot. Same is applicable to methods.

  •  Polymorphism − The word polymorphism means having many forms. Typically, polymorphism occurs when there is a hierarchy of classes and they are related by inheritance. C++ polymorphism means that a call to a member function will cause a different function to be executed depending on the type of object that invokes the function.
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