Question

How to use HashSet in C#

Answer 1

using System;
using System.Collections.Generic;
  
class Program
{
    static void Main() {
        HashSet<string> hst = new HashSet<string>();
         
        hst.Add("c#");
        hst.Add("c");
        hst.Add("c#");
        hst.Add("java");
        hst.Add("c#");

        foreach (var item in hst) {
           Console.WriteLine(item);
        }
    }
}
 
  
  
/*
run:
  
c#
c
java

*/

 

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