Array in C#

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

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        { //'i' is name of array, and  data '2,3,1,22,33' assigning to array'i'.
            int[] i = { 2, 3, 1, 22, 33 };
            for (int a = 0; a < i.Length; a++) //loop start from 0 to less then
             //'i'(array) length,and '.Length' is best for length of
                       //of array in loop.
                Console.WriteLine(i[a]); //with the help of 'a' printing
            Console.ReadLine();//array'i' elements writing method is
        }                //(array name 'i' and loop[a]);.
    }
}

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

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {  //if U write 'int arr[5];' then it not working.
            int[] arr = new int[5]; //giving space 5 for 'arr'array, means for 5 elements.
            arr[0] = 10; //this'0' is first space.
            arr[1] = 20; //this'1' is second.
            arr[2] = 30;
            arr[3] = 15;
            arr[4] = 5;
            for (int i = 0; i < arr.Length; i++)
            {
                Console.WriteLine(arr[i]);
            }
                Console.ReadKey();
        }
    }
}

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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] week = new string[7];
            week[0] = "Sunday";
            week[1] = "Monday";
            week[2] = "Tuesday";
            week[3] = "Wednsday";
            week[4] = "Thursday";
            week[5] = "Friday";
            week[6] = "Saturday";
            for (int i = 0; i < week.Length; i++) //one is another loop special
            { //for array, U also use it like 'foreach(string bi in week)'.
                Console.WriteLine(week[i]); //if U use foreach then write'(bi);'.
           } //in this 'week' array used string bcz used double qotes".
                Console.ReadKey();
        }
    }
}

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

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = { 4, 2, 5, 1, 8 };
            int total = 0;
            for (int i = 0; i < arr.Length; i++)
                total += arr[i]; //it adding all array integers and assinging
                Console.WriteLine("The total is: {0}",total); //to total.
                Console.ReadKey();
        }
    }
}