using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] numbers;
            int index;

            numbers = new int[6];       // Create array to hold 6 numbers

            // We can access an array element using a literal
            // e.g. to set the third element we can use index
            // value 2
            numbers[2] = 55;
            Console.WriteLine(numbers[2]);  // Displays 55

            // But we can access array using variable as index
            index = 2;
            numbers[index] = 55;            // Also sets third element in array
            Console.WriteLine(numbers[2]);  // Displays 55

            // **********************************************
            // This means we can combine arrays and for loops
            // **********************************************

            // First element is always at index 0
            // Likewise, for loop count value can start with
            // 0, so we can combine them

            // This ....
            numbers[0] = 0;     
            numbers[1] = 0;
            numbers[2] = 0;
            numbers[3] = 0;
            numbers[4] = 0;
            numbers[5] = 0; 

            // ..becomes this.
            for (index = 0; index < 6; index++)
            {
                numbers[index] = 0;
            }

            Console.ReadKey(); // Pause
        }
    }
}