Csharp Language Command Line Arguments and General Question

Question

1. What is the difference between the class that is added by using

     a.)Project Name=>Add=>New Item=>class

     b.)Solution =>Add=>New Item=>visual c# class 

which class of the above we should use while dealing with console applications??

 

 

2. I tried to execute the below code using Command Line Arguments but it throws an error as below:

 

Error: Doesnot containg static Main Method suitable for entry point 

 

using System;

class Myclass

{

static void Main(string[] args)

{

foreach(string str in args)

Console.WriteLine(str); 

} 

}