Learn C# OOP to write cleaner, modular, and scalable code by understanding classes in C#, working with objects in C#, and applying principles like data hiding, encapsulation, and inheritance.

Become a C# Programmer

This module provides an in-depth exploration of C# OOP (object-oriented programming), focusing on writing cleaner, more modular, and scalable code. We'll begin by covering the basics of classes in C# and objects in C# and progress toward advanced OOP concepts such as encapsulation, data hiding in C#, inheritance in C#, and polymorphism. Throughout, we’ll see how C# supports these OOP principles with its unique features to enhance development efficiency.

Object-Oriented Programming in C#

We have previously learned about `this` reference variable. This is the second use case 
of the `this` reference variable.

We already know that a class can have multiple constructors. There can be a parameterized constructor which initializes all the fields or there can be another constructor which initializes some of the fields and so on. In a case where the code to initialize some of the fields is already written in another constructor, why not just call that other constructor.

In C#, we can call a constructor from another constructor. When you call a constructor from another constructor, you use the `this` keyword followed by `()` to refer to the constructor.

Let's see it in action:

In this lesson, you will learn how to call a constructor from another constructor.

Introduction to Object-Oriented Programming

Classes and Objects

Data Hiding

Inheritance

Polymorphism

Conclusion

Calling a Constructor from Another Constructor