Question

How to compare the last part of a string to a sequence of characters in C#

Answer 1

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                string url = "www.website.com";

                if (url.EndsWith(".com"))
                    Console.WriteLine("yes"); // yes
                else
                    Console.WriteLine("no");

            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:

yes

*/

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Answer 2

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                string url = "www.website.net";
                string[] extensions = { ".com", ".net", ".org" };

                foreach (string ext in extensions)
                {
                    if (url.EndsWith(ext))
                    {
                        Console.WriteLine(ext); // .net
                        return;
                    }
                }
                Console.WriteLine("extension not found");

            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:

.net

*/

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Answer 3

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                string url = "www.website.info";
                string[] extensions = { ".com", ".net", ".org" };

                foreach (string ext in extensions)
                {
                    if (url.EndsWith(ext))
                    {
                        Console.WriteLine(ext);
                        return;
                    }
                }
                Console.WriteLine("extension not found"); // extension not found

            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }
}

/*
run:

extension not found

*/

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