using System;

public class Program

{

    public static void Main()

    {

        ResizingEmptyArrays();

        TraditionalArrays();

    }

    public static void ResizingEmptyArrays()

    {

        var index = 0;

        var myArray = new string[] {};

        var isEmptyText = false;

        do

        {

            Console.Write("[ResizingArrays] Give me some input or press enter to quit: ");

            var result = Console.ReadLine();

            isEmptyText = string.IsNullOrWhiteSpace(result);

            if (!isEmptyText) 

            {

                if (myArray.Length <= index) 

                {

                    Array.Resize(ref myArray, index+1);

                }

​

                myArray[index++] = result;

            }

        } while (!isEmptyText);

        Console.WriteLine(myArray.Length);

        Console.WriteLine(string.Join(", ", myArray));

    }

    public static void TraditionalArrays()

    {

        var index = 0;

        var myArray = new string[25];

        var isEmptyText = false;

        do

        {

            Console.Write("[TraditionalArrays] Give me some input or press enter to quit: ");

            var result = Console.ReadLine();

            isEmptyText = string.IsNullOrWhiteSpace(result);

            if (!isEmptyText) 

            {

                if (myArray.Length <= index) 

                {

                    Array.Resize(ref myArray, myArray.Length + 10);

                }

​

                myArray[index++] = result;

            }

        } while (!isEmptyText);

        Console.WriteLine(myArray.Length);

        for (var i=0; i < index; i++) 

        {

            Console.Write((i==0 ? "" : ", ") + myArray[i]);

        }

    }

}