What are the 4 Pillars of OOP in C#?

Object-oriented programming (OOP) is a popular programming paradigm that is used in many programming languages, including C#. OOP is based on the concept of objects, which are self-contained pieces of code that contain both data and functions. OOP is designed to make programming easier and more efficient by allowing developers to create reusable objects that can be used in multiple applications. The four pillars of OOP are Abstraction, Encapsulation, Inheritance, and Polymorphism.

Understanding Abstraction

Abstraction is the process of hiding the details of an object and only exposing the essential features of the object. Abstraction allows developers to focus on the object’s purpose rather than its implementation. In C#, abstraction is implemented using abstract classes and interfaces. An abstract class is a class that cannot be instantiated, but can be used as a base class for other classes. An interface is a collection of methods and properties that must be implemented by a class.

Exploring Encapsulation

Encapsulation is the process of wrapping data and functions into a single unit. In C#, encapsulation is implemented using classes. A class is a blueprint for an object that contains data and functions. Classes allow developers to create objects that can be used in multiple applications. Encapsulation also allows developers to control the visibility of data and functions, which helps to protect the data from being modified or accessed without permission.

Inheritance in C#

Inheritance is the process of creating a new class from an existing class. Inheritance allows developers to reuse existing code and extend the functionality of the existing class. In C#, inheritance is implemented using classes. A derived class can inherit the data and functions of the base class. The derived class can then add additional data and functions, or override existing data and functions.

Understanding Polymorphism

Polymorphism is the process of allowing objects to take on different forms. In C#, polymorphism is implemented using virtual methods and interfaces. A virtual method is a method that can be overridden by a derived class. An interface is a collection of methods and properties that must be implemented by a class. Polymorphism allows developers to create objects that can take on different forms depending on the context.

Conclusion

Object-oriented programming (OOP) is a popular programming paradigm that is used in many programming languages, including C#. OOP is based on the concept of objects, which are self-contained pieces of code that contain both data and functions. The four pillars of OOP are Abstraction, Encapsulation, Inheritance, and Polymorphism. Abstraction allows developers to focus on the object’s purpose rather than its implementation. Encapsulation allows developers to control the visibility of data and functions. Inheritance allows developers to reuse existing code and extend the functionality of the existing class. Polymorphism allows developers to create objects that can take on different forms depending on the context.