Beginner's Guide to .NET 10: Your First Week as a .NET Developer

Beginner's Guide to .NET 10 advice is everywhere, but a concrete day-by-day plan is rare. Your first week as a .NET developer does not require memorizing an API reference. It requires a working routine: install the right tools, run a real program, learn a handful of C# basics, and meet git. By the end of day five you will have a working console app, a git repository with your first commits, and a clear picture of the path that leads toward real web applications.

Beginner's Guide to .NET 10: The Five-Day Plan

Here is the whole week at a glance. Every step below is explained in detail afterwards, and each day builds on the previous one, so try not to skip ahead even when a step looks easy:

• Day 1: Install the .NET 10 SDK and verify it from the terminal.
• Day 2: Create and run your first console app.
• Day 3: Write small C# programs covering types, control flow, and methods.
• Day 4: Learn the five git commands that keep you safe.
• Day 5: Build one tiny project that combines everything.

Day 1 — Install the .NET 10 SDK

Download the .NET 10 SDK from dotnet.microsoft.com and install it like any other program. The SDK is the toolkit that bundles the compiler, the runtime, and the dotnet command-line tool, so one download gives you everything needed to build. After installation, open your terminal and run two checks:

dotnet --version
dotnet --list-sdks

The first command prints the installed version — you want to see a 10.x number. The second lists every SDK on your machine, which becomes useful later when you work on several projects with different target frameworks. If the command is not recognized, close and reopen the terminal so the PATH picks up the installation, then try again.

Day 2 — Create and Run Your First Console App

With the SDK verified, scaffolding a project takes a single command. In an empty folder, run:

dotnet new console -n HelloWorld
cd HelloWorld
dotnet run

You will see "Hello, World!" printed to the console. Open the folder in your editor and look at Program.cs. In modern .NET, Program.cs uses top-level statements — the compiler wraps your code in a Main method for you, so the file stays tiny and readable. Replace the contents with this:

Console.WriteLine("Hello, .NET 10!");
var name = "Indotalent";
Console.WriteLine($"Welcome, {name}!");

Run `dotnet run` again and watch the second line print your interpolated string. That is your first real C# feature in action, and it will follow you into Blazor pages and API endpoints for the rest of your career. Two commands worth meeting this same day are `dotnet build`, which compiles without running, and `dotnet watch`, which rebuilds and reruns automatically every time you save.

Day 3 — C# Basics in Small Doses

Do not try to read a full C# book in one sitting. Instead, write a dozen tiny programs that each prove one idea. Good first topics, in this order:

• Variables and types — int, string, bool, and decimal, plus when `var` is a fine shortcut.
• Control flow — if/else branches and for loops.
• Collections — List<T> and the foreach loop.
• Methods — small functions that take input and return output.
• Classes and records — the building blocks of real applications.

A typical exercise: write a program that asks for a name, stores it in a variable, loops over a list of greetings, and prints a personalized message for each one. Ten minutes of typing beats an hour of highlighting a book, because the compiler becomes your teacher — it tells you exactly where you went wrong, and fixing errors is where the learning happens.

Day 4 — Meet Git

Git is the version control system used at nearly every software job, and you can start with just five commands. Initialize a repository inside your HelloWorld folder and commit what you have:

git init
git add .
git commit -m "My first .NET 10 console app"
git status

That is enough for week one. You can now experiment freely, and if you break something you can restore a file with `git checkout -- .` and try again. Later weeks add branches, remotes, and pull requests, but the commit loop — edit, save, commit — is the habit that matters most and the one every team workflow is built on top of.

Day 5 — Build a Tiny Project

Day five combines everything you have learned. Start a new console app, define a record for a Product, build a List of products, add a method that prints them to the console, and make the output depend on a value the user types in. Then initialize git and commit. You will finish the week having written real code, stored it in version control, and completed a full create-edit-run-debug loop — the exact loop you will repeat for the rest of your career, just with bigger projects attached.

Beginner's Guide to .NET 10: What to Build Next

After the first week, the path splits into three useful directions, and this guide series covers each one. The ecosystem article explains how the runtime, the SDK, and the frameworks fit together, removing the confusion behind every term you have heard thrown around. The Blazor and EF Core guide introduces the web tools used by production applications. And once you can read the structure of a console app, you are ready to study real source code — including the complete .NET 10 applications Indotalent publishes, which follow the same project patterns you just practiced from day one.

Key Takeaways

• Week one is about routine, not memorization: install, run, write, commit.
• The .NET 10 SDK includes the compiler, the runtime, and the dotnet CLI in one download.
• Top-level statements keep Program.cs readable in every new .NET project.
• Five git commands — init, add, commit, status, checkout — are enough to start working safely.
• String interpolation, lists, and methods from day three are the same tools used in Blazor and Minimal APIs.
• Indotalent products are complete .NET 10 applications you can study for $21 each.

FAQ

Do I need to install anything besides the .NET 10 SDK?

No. The SDK includes the runtime and the compiler. You only need an editor — Visual Studio Code is the free, lightweight choice most beginners use.

Is the .NET 10 SDK free?

Yes. .NET is free and open source, and you can download the SDK directly from Microsoft for Windows, macOS, and Linux.

How much C# do I need before building a web app?

One week of console practice is enough to start. Variables, loops, methods, and classes take you surprisingly far in Blazor and Minimal APIs.

What if `dotnet` is not recognized after installing?

Close and reopen your terminal so the PATH refreshes, then run `dotnet --version` again. If it still fails, restart your machine once — installation path changes are picked up at startup.