C# Quick starts

Welcome to the C# Quick starts. These start with interactive lessons that you can run in your browser.

The first lessons explain C# concepts using small snippets of code. You'll learn the basics of C# syntax and how to work with data types like strings, numbers, and booleans. It's all interactive, and you'll be writing code within minutes. These first lessons assume no prior knowledge of programming or the C# language.

All the quick starts following the Hello World lesson are available using the online browser experience or on your own development environment. At the end of each lesson, you decide if you want to continue with the next quick start online or on your own machine. There are links to help you setup your environment and continue with the next quick start on your machine.

Hello world

In the Hello world quick start, you'll create the most basic C# program. You'll explore the string type and how to work with text.

Numbers in C#

In the Numbers in C# quick start, you'll learn how computers store numbers and how to perform calculations with different numeric types. You'll learn the basics of rounding, and how to perform mathematical calculations using C#. This quick start is also available to run locally on your machine.

This quick start assumes that you have finished the Hello world tutorial.

Branches and loops

The Branches and loops quick start teaches the basics of selecting different paths of code execution based on the values stored in variables. You'll learn the basics of control flow, which is the basis of how programs make decisions and choose different actions. This quick start is also available to run locally on your machine.

This beginning lesson assumes that you have finished the Hello World and Numbers in C# lessons.

List collection

The List collection lesson gives you a tour of the List collection type that stores sequences of data. You'll learn how to add and remove items, search for items, and sort the lists. You'll explore different kinds of lists. This quick start is also available to run locally on your machine.

This beginning quick start assumes that you have finished the quick starts listed above.

Introduction to classes

This final quickstart is only available to run on your machine, using your own local development environment and .NET Core. You'll build a console application and see the basic object-oriented features that are part of the C# language.

This quick start assumes you've finished the online quick starts, and you've installed .NET Core SDK and Visual Studio Code.