using System;

public class Program

{

    public static void Main()

    {

        string name = null;

        Print(name);

        // Null Conditional Operatoer

        // https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/null-conditional-operators

        name = name?.ToUpper(); //The advantage to this is you can chain the methods and not worry about an excepion happening becuase the name is null

        Print(name);

        var c1 = new MyClass("test");

        Console.WriteLine(c1?.name);

        MyClass c2 = null;

        Console.WriteLine("hrlo");

        Console.WriteLine(string.IsNullOrWhiteSpace(c2?.name));

    }

    public class MyClass{

        public string name;

        public MyClass(string name){

            this.name = name;

        }

    }

    private static void Print(string printStatement){

        if(string.IsNullOrEmpty(printStatement)){

            Console.WriteLine("Name is Null from the IsNullOrEmpty extension method System");

        }

        else{

            Console.WriteLine(printStatement);

        }

    }

}