C# | Create HashSet from another collection

using System;
using System.Collections.Generic;

public class Program
{
    public static void Main()
    {
        // create a List of integers
        List<int> numbers = new List<int> { 1, 2, 3, 4, 5 };

        // create a HashSet from the List
        HashSet<int> numberSet = new HashSet<int>(numbers);

        // print out the contents of the HashSet using a foreach loop
        Console.WriteLine("Contents of HashSet:");
        foreach (int number in numberSet)
        {
            Console.WriteLine(number);
        }
    }
}

// C# code to Create HashSet
// from another collection
using System;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a HashSet of integers
        HashSet<int> mySet = new HashSet<int>();

        // Inserting even numbers less than
        // equal to 10 in HashSet mySet
        for (int i = 0; i < 5; i++) {
            mySet.Add(i * 2);
        }

        // Creating new HashSet mySet_new from already
        // Created HashSet mySet
        HashSet<int> mySet_new = new HashSet<int>(mySet);

        Console.WriteLine("The elements in newly created HashSet are : ");

        // Displaying the elements of newly created HashSet
        foreach(int i in mySet_new)
        {
            Console.WriteLine(i);
        }
    }
}

// C# code to Create HashSet
// from another collection
using System;
using System.Collections.Generic;

class GFG {

    // Driver code
    public static void Main()
    {

        // Creating a HashSet of strings
        HashSet<string> mySet = new HashSet<string>();

        // Inserting elements into HashSet mySet
        mySet.Add("Delhi");
        mySet.Add("Noida");
        mySet.Add("Chandigarh");
        mySet.Add("New York");
        mySet.Add("Bangalore");

        // Creating new HashSet mySet_new from already
        // Created HashSet mySet
        HashSet<string> mySet_new = new HashSet<string>(mySet);

        Console.WriteLine("The elements in newly created HashSet are : ");

        // Displaying the elements of newly created HashSet
        foreach(string i in mySet_new)
        {
            Console.WriteLine(i);
        }
    }
}