using System;

​

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

List<int> primeNumbers = new List<int>();

primeNumbers.Add(1); // adding elements using add() method

primeNumbers.Add(3);

primeNumbers.Add(5);

primeNumbers.Add(7);

​

var cities = new List<string>();

cities.Add("New York");

cities.Add("London");

cities.Add("Mumbai");

cities.Add("Chicago");

cities.Add(null);// nulls are allowed for reference type list

Console.WriteLine(cities.Count); // List count

//adding elements using collection-initializer syntax

var bigCities = new List<string>()

                    {

                        "New York",

                        "London",

                        "Mumbai",

                        "Chicago"                    

                    };

    }

}

​