c# main method vs start code example

Example 1: static void main(string args) c# meaning

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

Example 2: main program in c#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace SoloLearn
{
   class Program
   {
      static void Main(string[] args)
      {
      }
   }
}