CSHARP

c# main file

class TestClass
{
    static void Main(string[] args)
    {
        // Display the number of command line arguments.
        Console.WriteLine(args.Length);
    }
}

c# main method

static void Main(string[] args)  
{  
//...  
}

c# main

using System;

namespace TestConsole
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");
        }
    }
}

c# main

static void Main(string[] args)  
{  
  //your code
}