Download File From the Internet

using System;
using System.Net;
using System.IO;

class DownloadFileFromInternet
{
  //Write a program that downloads a file from Internet (e.g. http://www.devbg.org/img/Logo-BASD.jpg) and stores it the current directory. Find in Google how to download files in C#. Be sure to catch all exceptions and to free any used resources in the finally block.

  static void Main()
  {
    Console.WriteLine("Enter the full download url: "); //Ask for the url of the file to download
    string url = Console.ReadLine(); //Store it in the url string
    string fileName = Path.GetFileName(url); //extract the file name

    using (WebClient client = new WebClient())//Open a web client
    {
      try
      {
        client.DownloadFile(url, fileName);//Use the web client with our url and file name
      }
      catch (ArgumentNullException)
      {
        Console.WriteLine("Please provide a url address!"); ;
      }
      catch (WebException)
      {
        Console.WriteLine("An error occurred while trying to download the file! Make sure the url is valid, the file you want to download exists and the internet connection is running!");
      }
      catch (NotSupportedException)
      {
        Console.WriteLine("The DownloadFile method cannot be called simultaneously on multiple threads.");
      }
      finally
      {
        Console.WriteLine("Good bye!");
      }
    }
  }
}