remove duplicate words from string in C#

Question

here is my code:

class Program
    {
        static void Main(string[] args)
        {
            string sentence = string.Empty;
            sentence = Console.ReadLine();
            string[] sent = sentence.Split(' ');
            //to be sorted alphabetically
            var x =
                from k in sent
                orderby k
                select k;

            foreach (string s in x)
            {
                    Console.WriteLine(s.ToLower());
            }

            Console.ReadLine();
        }
    }

is there any method to find and remove duplicate words or I should make my own method?

Answer 1

You could use Linq's Distinct extension method:

var sent = sentence.Split(' ').Distinct();

You can also use this to ignore the case of strings when comparing them—e.g. "WORD" and "word" would be considered duplicates:

var sent = sentence.Split(' ').Distinct(StringComparer.CurrentCultureIgnoreCase);