C# Tutorial - GeeksforGeeks (2024)

Last Updated : 08 Jul, 2024

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In this C# (C Sharp) tutorial, whether you’re beginner or have experience with other programming languages, our free C# tutorials covers the basic and advanced concepts of C# including fundamentals of C#, including syntax, data types, control structures, classes, and objects.

You will also dive into more advanced topics like exception handling, and multithreading. So, whether you are looking to start a career in software development or simply want to expand your programming skills, our C# tutorial is the perfect place to start.

C# Tutorial - GeeksforGeeks (1)

What is C# (C Sharp)

C# is the most common programming language used to develop multiple applications in the.NET framework, and it was introduced by Microsoft in 2000. It was designed to be a simple, object-oriented programming language that can be used to create a wide range of applications and software.

It features a clear syntax, an object-oriented nature, and platform independence, which makes it simpler for developers to organise their code and makes it more legible and manageable.

It is platform-independent in the sense that it may be used to create programmes that operate on different platforms such as Windows, macOS, Linux, and mobile devices. This makes C# a versatile language.

Prerequisite to Learn C#

While there are no strict prerequisites to learning C#, it is a high-level language. So, if you have experience in any programming language like C or C++, then it will significantly enhance your learning experience.

C# Features

Simple

C# is a user-friendly language that offers a structured approach to problem-solving. it provides a wide range of library functions and data types to work.

Modern Programming Language

C# programming is a popular and powerful language that is for creating scalable, interoperable, and robust applications.

Object Oriented

C# is an object-oriented programming language, which makes development and maintenance easier. In contrast, with procedure-oriented programming languages, managing code becomes difficult as project size grows.

Type Safe

The code is type safe can only access memory locations that it has permission to execute. This feature significantly enhances program security.

Interoperability

The interoperability process allows C# programs to perform all the tasks that a native C++ application.

Scalable and Updateable

C# is a programming language that is scalable and can be updated automatically. To update our application, we remove the old files and replace them with new ones.

Component Oriented

It is widely used as a software development methodology to create applications that are more strong and can easily scale.

Structured Programming Language

C# is a structured programming language that allows us to divide programs into parts using functions, making it easy to understand and modify.

Fast Speed

The compilation and execution time of C# language is fast.

Recent Articles on C# !

Overview,Fundamentals,Important Keywords,Control Statements,OOP Concepts,Methods,Delegates,Constructors,Arrays,ArrayList,String,Tuple,ValueTuple,Indexers,Inheritance,Interfaces,Multithreading,Exception Handling,Collections and Generics,Collections Namespace,Generic Namespace,System Namespace,Specialized Namespace,What’s New in C# 8.0,Windows Forms

C# Tutorial- C# Index

Overview

Fundamentals

Important Keywords

Control Statements

OOP Concepts

Methods

Delegates

Constructors

Arrays

ArrayList

String

Tuple

ValueTuple

Indexers & Properties

Inheritance

Interfaces

Multithreading

Exception Handling

Collections & Generics

Collections Namespace

Generic Namespace

System Namespace

Specialized Namespace

What’s New in C# 8.0

Windows Forms

Why use C#?

C# is a popular and simple-to-learn programming language with a large community and plain syntax. C# is an object-oriented programming language that makes code more structured, reusable, and interoperable with other languages. C# is a versatile programming language that can be used to create a broad variety of applications, including games, apps, websites, and advanced technologies such as AI and machine learning.

C# is used for:

  • Mobile applications
  • Desktop applications
  • Web applications
  • Web services
  • Web sites
  • Games
  • VR
  • Database applications

Advantages of C#

  • Easy Syntax: C# is a simple syntax that is easy to learn for a beginner.
  • Object-oriented Programming language: It is an object-oriented programming language used to make classes and objects.
  • Versatile language: It is used to develop software, web applications, mobile apps, and games.
  • Platform Independent: C# can be used to make apps that work on Windows, macOS, and mobile devices.

Audience

In the above section, we have already said that this free C# programming tutorial is designed to help both beginners and experienced.

FAQs on C#

Q.1 What is C# programming language used for?

Answer:

C# is a versatile programming language primarily used for developing Windows applications, web services, and games within the .NET framework.

Q.2 What is the advantage of ‘using’ statement in C#?

Answer:

The ‘using’ statement provides resources for processing before automatically disposing of it when execution is completed.

Q.3 What is serialization?

Answer:

To transport an object through a network, we need to convert it into a stream of bytes. It is called Serialization.

Q.4 What are the four steps involved in the C# code compilation?

Answer:
Four steps of code compilation in C# include:

  • Source code compilation in managed code.
  • Newly created code is merged with assembly code.
  • The Common Language Runtime (CLR) is loaded.
  • Assembly execution is done through CLR.

Q.5 How can I declare and initialize variables in C#?

Answer:

Variables are named containers that store values of different types. To declare a variable in C#, you need to specify its type and name.



C# Tutorial - GeeksforGeeks (2024)

FAQs

Can I learn C# on my own? ›

C# at your own pace

If you love working with Notebooks, you can learn C# with a series of quick lessons that will take you through the language fundamentals. Before getting started, make sure you download the developer tools mentioned above.

Is C# easy for beginners? ›

The C# language is also easy to learn because by learning a small subset of the language you can immediately start to write useful code. More advanced features can be learnt as you become more proficient, but you are not forced to learn them to get up and running. C# is very good at encapsulating complexity.

Is C# harder than C++? ›

C++ is faster and has a smaller memory footprint, but C# is easier to learn and is less error-prone than C++.

Is C# easier than Python? ›

Python is often praised for its beginner-friendly syntax and extensive support network, making it a popular choice for novices. On the other hand, C# offers a robust framework that can be more challenging for beginners but provides strong foundational knowledge beneficial for complex software development.

Why is C# difficult to learn? ›

It is not hard to learn C#. Learning programming languages generally is not an easy feat, but some are more difficult than others. C# is one of the easiest programming languages to learn. C# is a high-level, general-purpose programming language that is easy to read because of its well-defined class hierarchy.

Is C# still in demand? ›

In conclusion, learning C# in 2023 is undeniably worth it. With its strong foundation in object-oriented programming, versatility in application development, robust frameworks, high demand for C# jobs, and ample online learning resources, C# offers a promising career path for aspiring developers.

How long will it take to learn C#? ›

If you dedicate an hour or so every day to learning, it will take you around two to three months to understand the fundamentals of C#. If you study part-time or full-time, you may learn C# faster.

What is the hardest programming language? ›

Malbolge. This language is so hard that it has to be set aside in its own paragraph. Malbolge is by far the hardest programming language to learn, which can be seen from the fact that it took no less than two years to finish writing the first Malbolge code.

What should I know before learning C#? ›

No, C# is a stand alone programming language that does not require any prerequisites to learn. Infact having knowledge of another programming language( C in your case) will definately help in understanding the basics like loops and condition statements and will make your learning pace faster.

Which is the best platform to learn C#? ›

30 of the Best Tutorials to Learn C#
  • Tutorials Teacher.
  • Lynda.com – Learning C#
  • C# Station.
  • Deccansoft -C# Training.
  • Microsoft Virtual Academy – C# fundamentals for absolute beginners.
  • Tutorials Point – Basic and Advanced C#
  • Udemy – C# Programming projects for beginners.
  • LearnCS.org.

What is C# good for? ›

It can perform a wide range of tasks and processes across different niches. Among other languages, C# is gaining huge popularity for developing web-based applications. Its core concepts help build an interactive environment and provide functionalities that the dynamic web platform requires.

Which is more difficult Java or C#? ›

It's a fact that C# is easier to use than Java. Here are some reasons why: C# is a superset of C++, while Java isn't. There's no need to learn new syntax when you switch from one to the other because they both use the same basic syntax.

Why use C++ instead of C#? ›

C++ has a faster runtime than C#, specifically due to the way it handles memory and compiles code. C# uses the common language runtime (CLR) provided by the . NET framework to convert C# into native code. C++ compiles directly into native code and doesn't require a universal runtime system.

How long will it take you to learn C#? ›

If you dedicate an hour or so every day to learning, it will take you around two to three months to understand the fundamentals of C#. If you study part-time or full-time, you may learn C# faster.

Can I learn C# without knowing anything? ›

C# is used by many large organizations, start-ups and beginners alike. It takes some of the useful features of C and adds syntax to save time and effort. Although C# is based on C, you can learn it without any knowledge of C — in fact, this course is perfect for those with no coding experience at all!

How hard is it to learn C# from scratch? ›

Some of the concepts are similar to other languages, only the syntax is slightly different. Just complete the course and keep practice coding and it will become easy. Maybe c# isn't the most easiest object oriented language But it is more easy than java. c#'s code is easy to learn and c# collection is just awesome.

Do I need to learn anything before C#? ›

No, C# is a stand alone programming language that does not require any prerequisites to learn. Infact having knowledge of another programming language( C in your case) will definately help in understanding the basics like loops and condition statements and will make your learning pace faster.

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