.NET Guidebook

Basics

.NET Introduction

Introduction to .NET Programming

.NET is a Microsoft framework for building web and enterprise apps with C#.

What is .NET?

.NET is a free, cross-platform, open-source developer platform created by Microsoft. It is used for building a wide range of applications, from web to mobile to desktop. The framework supports multiple languages, with C# being the most prominent.

Key Features of .NET

  • Cross-platform: Develop applications that can run on Windows, macOS, and Linux.
  • Language Interoperability: Use multiple languages such as C#, F#, and Visual Basic.
  • Comprehensive Libraries: Access a vast library of pre-built code and APIs.
  • Performance: High performance and scalability for large applications.

Why Use .NET?

.NET is chosen by developers for its robustness, security, and performance. It allows for quick development and easy maintenance of applications. The framework is well-suited for enterprise-level applications, offering tools and libraries that make development efficient.

Example: Hello World in C#

Let's look at a simple "Hello World" program using C# in .NET. This will give you a basic idea of how a .NET application is structured.

This C# code defines a class Program with a Main method, which is the entry point of any C# application. The line Console.WriteLine("Hello, World!"); outputs the text "Hello, World!" to the console.

.NET Ecosystem

The .NET ecosystem consists of .NET Core, .NET Framework, and Xamarin, allowing developers to build applications for web, desktop, mobile, cloud, gaming, IoT, and AI. Each part of the ecosystem caters to different development needs:

  • .NET Core: A cross-platform version of .NET for building websites, services, and console apps.
  • .NET Framework: The original .NET implementation, mainly for Windows.
  • Xamarin: Used for mobile app development across iOS and Android.

Conclusion

.NET is a versatile framework that supports a wide range of application types and platforms. Its extensive libraries, cross-platform capabilities, and support for multiple programming languages make it a preferred choice for many developers.

Basics

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Installation