using System;

public class Program

{

    public static void Main()

    {

        Uri uri = null;

        try

        {

            Console.WriteLine("uri = null");

            uri = null;

            Console.Write("Uri: ");

            Console.WriteLine(uri);

        }

        catch (Exception ex)

        {

            Console.WriteLine(ex.Message);

        }

        Console.WriteLine(uri == null);

        Console.WriteLine();

​

        try

        {

            Console.WriteLine("uri = new Uri(null)");

            uri = new Uri(null);

            Console.Write("Uri: ");

            Console.WriteLine(uri);

        }

        catch (Exception ex)

        {

            Console.WriteLine(ex.Message);

        }

        Console.WriteLine(uri == null);

        Console.WriteLine();

​

        try

        {

            Console.WriteLine("uri = new Uri(\"/somepath\")");

            uri = new Uri("/somepath");

            Console.Write("Uri: ");

            Console.WriteLine(uri);

        }

        catch (Exception ex)

        {

            Console.WriteLine(ex.Message);

        }

        Console.WriteLine(uri == null);

        Console.WriteLine();

​

        try

        {

            Console.WriteLine("uri = new Uri(\"https://dotnetfiddle.net/\")");

            uri = new Uri("https://dotnetfiddle.net/");

            Console.Write("Uri: ");

            Console.WriteLine(uri);

        }

        catch (Exception ex)

        {

            Console.WriteLine(ex.Message);

        }

        Console.WriteLine(uri == null);

    }

}