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C# Basics

Print a value from a .NET program.

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The concept

Execution starts in Main. Console.WriteLine writes a line to standard output. The using directive makes System types available by short name.

using System;
class Program {
  static void Main() {
    string name = "Ada";
    Console.WriteLine($"Hello, {name}");
  }
}

Output

Hello, Ada

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1using System;

2class Program {

3 static void Main() {

4 string name = "Ada";

5 Console.WriteLine($"Hello, {name}");

6 }

7}

Start to inspect the source, values, and output. These prepared steps explain the published sample; grouped loop steps describe multiple iterations.

View the complete dry-run table

Prepared trace of the published program. Some rows group repeated iterations.
Step / line	What happens	State after step	Output so far
	Create a string variable.	`name = "Ada"`	—
	Interpolate name and write the resulting line.	`name = "Ada"`	Hello, Ada

How C# processes this code

C# compiles to code for the .NET runtime, which invokes the program entry point.