How to create single dimension arrays in c#?

using System;

namespace PracticeArrays
{
    class PlayingWithArrays
    {
        public static void Main(string[] args)
        {
            //[1][2][3][5] 
            int[] myCoolNumbers ={0,1,2,3,5,8};//memory 
            //[0][1][2][3][5][8]
            for(int i=0; i < myCoolNumbers.Length; i++)
            {
                int myNumber = myCoolNumbers[i];
                Console.WriteLine(myNumber);
            }
        }
    }
}