Online C# Compiler (.NET 8 / Mono)

Getting Started with C# Online

C# is a modern, object-oriented, and type-safe programming language developed by Microsoft. It runs on the .NET platform and is widely used for building cloud services, enterprise applications, web applications, and games.

Basic Structure of a C# Program

In standard C#, execution starts in the Main method inside a class. Namespaces like System provide access to basic types and console operations.

using System;

public class Program {
    public static void Main() {
        Console.WriteLine("Hello from FreeOnlineGDB!");
    }
}

Handling Standard Input in C#

Use Console.ReadLine() to capture standard input. In our compiler, switch to the Input (stdin) tab and enter your inputs before executing.