C# Basics

Hello World and Program Structure

Understand the entry point and the structure of a C# console program.

Introduction

A C# application starts in Main. The using directive makes framework types available without fully qualified names.

Main is static because the runtime calls it before an object exists. Console.WriteLine writes a line to standard output.

Program.cs

using System;

class Program
{
    static void Main()
    {
        Console.WriteLine("Hello, C#!");
    }
}

Result of running the code

Hello, C#!

Set a breakpoint on an important assignment or condition, click Debug, and inspect the local values before stepping to the next line.

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