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You will commonly see ASP.NET and C# used side-by-side in software development. Examples of these services include memory management, the loading of libraries, and security services. Managed code is represented in Intermediate Languageor IL. When the CLR loads an assembly, it converts the IL into the native code of the machine, such as x86.

what is C#

The following code snippet declares an array that can store 5 items only starting from index 0 to 4. Afixed lengtharray https://www.globalcloudteam.com/ can store a predefined number of items. The size of adynamic arrayincreases as you add new items to the array.

Visual Studio as a native IDE

For instance, in many situations, Mono gets performance results that are similar to those of the.NET runtime. That said, C# apps don’t change much in how they work, no matter what platform they are running on. The fact that your stack hasn’t changed should be a relief to more experienced developers who are working on older projects that were originally written in C#. Even though some of the procedures may have changed over time, everything else about the organization has stayed the same. In 2019, StackOverflow polled professional developers and found that 31.9% of them prefer the programming language C#.

Static typing eliminates a large class of errors before a program is even run. It shifts the burden away from runtime unit tests onto the compiler to verify that all the types in a program fit together correctly. This makes large programs much easier to manage, more predictable, and more robust. C# is a general-purpose, type-safe, object-oriented programming language. To this end, the language balances simplicity, expressiveness, and performance. The chief architect of the language since its first version is Anders Hejlsberg .

Principles of C++ Development

So, basically, it’s a second loop that comes in very handy. Functions are collections of code that compare and manipulate these variables. We organise code in functions so that they can be easily reused multiple times in different parts of the program. C# was used to make the Unity game engine, which is very popular. In fact, about 33 percent of the most popular games are made on this platform, and more than 500 million people play these games.

Defines types that represent references to methods with specific parameter lists and return types. Provides a simplified approach to asynchronous programming, with code execution based on external resource allocation and task completion. Reflection is supported through .NET APIs, which enable scenarios such as type metadata inspection and dynamic method invocation. Unlike C++ which has some degree of support for contravariance simply through the semantics of return types on virtual methods. The only implicit conversions by default are those that are considered safe, such as widening of integers. This is enforced at compile-time, during JIT, and, in some cases, at runtime.


The Unity game engine uses C# as its primary scripting language. The Godot game engine has implemented an optional C# module thanks to a donation of $24,000 from Microsoft. A decade later, Microsoft began developing free, open-source, and cross-platform tooling for C#, namely Visual Studio Code, .NET Core, and Roslyn. Mono joined Microsoft as a project of Xamarin, a Microsoft subsidiary.

According to the InterfaceSegregation Principle , no client should be made to rely on methods that it does not employ. ISP, like GRASP’s High Cohesion Principle, is one of the five SOLID principles of object-oriented design. The SRP principle asserts that if a class has two reasons to change, the functionality should be separated into two classes.

C# Is Good for Game Development

If you choose “public” , and you experience an issue, you need to look inside your whole codebase in order to track the source because any other object has access to that variable. However, if you want objects to communicate between themselves you need some variables to be public. Microsoft made the server-side framework ASP.NET, which can be used to make web pages that change over time.

what is C#

The key difference from .NET is that C# is not a platform but a programming language. The reason these terms are often confused or used interchangeably is that C# was created by Microsoft specifically to work with the .NET framework. As you can see, C# is the most commonly used .NET language, and the concept of .NET is somewhat broader than C#. These are just a few reasons that make C# the best programming language when it comes to web applications. It provides a broad spectrum of components covering business-oriented to system-oriented projects. It supports Windows, Linux, MacOS, Android, iOS — basically all major target platforms.

What is C# Programming? A Beginner’s Guide

This is a pivotal feature of certain programming languages that helps prevent errors that occur when one data type is used as though it were another. It is thus considered a powerful programming language and features in every developer’s cache of tools. The stack of .NET technologies is diverse, which enables the creation of various software solutions. It includes integrated development environments , components and libraries. In addition, you can use WPF and WinUI to build rich graphical user interfaces, Windows Forms to create simpler graphical applications, ADO.NET and Entity Framework Core to work with databases.

C Sharp is a high-level object-oriented program which like C++, is built over C. Owned by Microsoft, C# was introduced along with .NET and visual studio. C#, which is also called C Sharp, is a programming language that was made by Anders Hjelsberg. C Sharp used to be called “Cool,” but at some point in the past, that name was changed.

Categories of data types

Although, there are several cons you need to consider in terms of language specifics. Besides the .NET and C# forum, there is also an official resource called .NET what is C# foundation, a place for collaboration and sharing ideas. The following code snippet declares an array that can store 100 items starting from index 0 to 99.