Question

How to remove duplicate characters from a string in C#

Answer 1

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string s = "c# c c++ java";

            s = RemoveDuplicateChars(s);

            Console.WriteLine(s);
        }
        static string RemoveDuplicateChars(string s)
        {
            string result = "";

            foreach (char ch in s)
            {
                if (result.IndexOf(ch) == -1)
                    result += ch;
            }
            return result;
        }
    }
}

/*
run:
 
c# +jav
    
*/

 

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