Create HashSet from another collection in CSharp

using System;/*from w w  w  .j  a va 2s . c o m*/
using System.Collections.Generic;
public class MainClass{
  public static void Main(String[] argv){  
    HashSet<int> evenNumbers = new HashSet<int>();
    HashSet<int> oddNumbers = new HashSet<int>();

    for (int i = 0; i < 5; i++)
    {
        evenNumbers.Add(i * 2);
        oddNumbers.Add((i * 2) + 1);
    }
    HashSet<int> numbers = new HashSet<int>(evenNumbers);
    
    foreach(int i in numbers){
       Console.WriteLine(i);
    }

  }
}