C# OOP: C# Object Oriented Programming on Real C# Projects (Udemy.com)

Hello there,

Welcome to C# OOP: C# Object Oriented Programming on Real C# Projects course.
Learn C# OOP with hands-on C# projects and dive in C# intermediate step by step guide to classes, interfaces and C# OOP

Whether you’re using C# in conjunction with Xamarin Forms to build cross-platform apps, or designing a new video game in Unity with C#, Udemy has a course for you. Udemy hosts top-rated courses on everything from the fundamentals of C# programming to more advanced topics like databases and asynchronous programming.

Even though C# is a language that’s relatively easy to learn and maintain, it isn’t just for beginners. Its scalability and large support community make C# the language of choice for Microsoft app developers and video game developers working with the Unity Engine. Like C++ and Java, C# is a high-level object-oriented programming language. It is generally more efficient than Java and has useful features such as operator overloading. C# is based on C++ but has several advantages over this older language: it is type-safe, more comprehensively object-oriented, and the syntax has been simplified in several important ways. Most importantly, C# interoperates exceptionally well with other languages on the .NET platform. For this reason, C# is a better choice for building applications for .NET.

Most programmers will choose to learn the object oriented programming paradigm in a specific language. That’s why Udemy features a host of top-rated OOP courses tailored for specific languages, like Java, C#, and Python.

Object-oriented programming (OOP) is a computer programming paradigm where a software application is developed by modeling real world objects into software modules called classes. Consider a simple point of sale system that keeps record of products purchased from whole-sale dealers and the products sold to the customer. An object-oriented language would implement these requirements by creating a Product class, a Customer class, a Dealer class and an Order class. All of these classes would interact together to deliver the required functionality where each class would be concerned with storing its own data and performing its own functions. This is the basic idea of object-oriented programming or also called OOP.

What is C# ?
C# (pronounced see-sharp) is a general-purpose, object-oriented programming language. It was designed as a multi-paradigm programming language by Microsoft in around 2000 as part of its .NET initiative. The .NET framework and .NET applications are multi-platform applications that you can use with programming languages such as C++, C#, Visual Basic, and COBOL. C# is open-source and was designed to be simple yet modern, flexible yet powerful and versatile yet easy to learn and program with. Many programming languages in the past were designed for specific purposes. C# was developed with business and enterprise needs in mind. By providing functionality to support modern-day software development such as web applications, mobile, and response app needs, C# supports many features of modern-day programming languages. That includes generics, var types.

What are the advantages of c# over C++ ?
Thanks to the .NET framework, C# has many advantages over C++. C# is a refined and modernized version of C++. C++ was developed to bring object-orientation to C, an older but widely used language, and C++ became the de-facto language for building applications for Windows as well as infrastructure and low-level applications. Visual Basic was for business applications. What C# does is combine the rapid development capabilities of VB with the power of C++. C# also has many new data types, type-safety, to ensure you do not unknowingly reuse initialized variables. It uses a simplified syntax, a huge improvement over the complex coding often required in C++. C# also removes memory management issues thanks to .NET’s garbage collection scheme. You do not have to reference items for garbage collection; the system can reclaim that memory as required.

Why use encapsulation in C# ?
Encapsulation can be used in C# to hide data and program behavior from users. With encapsulation, you can group properties, methods, and other members so that they are treated as a single object. It is a means to prevent the user of a given class from manipulating program objects in ways that were not intended by the designer or developer. Encapsulation hides how a program operates without affecting how it works while still allowing users to service requests for functionality and add or modify internal data or methods to meet changing needs. For example, suppose you have an object called “Patient” that contains patient-related data. In that case, you can use encapsulation to provision patient-specific data to those who need it without exposing all patient data. In addition to information hiding, you can use encapsulation in C# to improve your code's reusability.

What is C# used for?
C# is a general-purpose programming language that you can use to build a wide range of programs and applications, such as web applications, Windows applications and game development. In web application development, you can build dynamic websites and apps using .NET or another open-source platform of your choice. Also, since Microsoft created C# for Microsoft, C# is a popular language for building Windows applications. There are rich resources and a vibrant C# community that can support and documentation for applications and programs specific to Microsoft platform architectures, making it easier than ever to develop applications in this space. Finally, C# is a popular language to use in game-building, especially with Unity, a game engine that runs on C++ and C#.

What is a constructor? What is a destructor?
To understand constructors and destructors, we need to understand methods. A method is a block of code that contains a series of statements. Programs run by executing methods. A constructor is a special method of a class that is automatically called whenever an instance of a given class is created. A constructor contains the instructions that execute when an object is created. Developers use it to assign specific initial values to the data members of the same class. In C#, you will get a compile-time error if you try to read from an uninitialized variable. You must first initialize your variables by giving them an initial value, which is what the constructor does. On the other hand, destructors are methods used to destroy instances of a class when they are no longer needed. Destructors are called implicitly by the garbage collector in .NET