remove duplicate words from string in C#

Question

here is my code:

class Program
    {
        static void Main(string[] args)
        {
            string sentence = string.Empty;
            sentence = Con         


        

Answer 1

Use System.Linq Distinct:

foreach (string s in x.Distinct())

Answer 2

This should do everything you're asking:

class Program
{
    static void Main(string[] args)
    {
        string sentence = string.Empty;
        sentence = Console.ReadLine();

        var sent = sentence
            .Split(' ')
            .Distinct()
            .OrderBy(x => x);

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

        Console.ReadLine();
    }
}

Hope it helps!

Answer 3

Use Distinct:

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

Answer 4

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);