using System;

public class Program

{

    public static void Main()

    {

​

​

        // declare and initialize in one step

        int[] numbers = { 10, 9, 8, 7, 6 };

​

        // access and change an element

        Console.WriteLine("the number at index 4: " + numbers[4]);

        numbers[4] = 99;

        Console.WriteLine("the number at index 4: " + numbers[4]);

​

        // How long is the array?

        Console.WriteLine("The length of the array is: " + numbers.Length);

​

        // Get Upper Bound

        Console.WriteLine("The upper bound of the array is: " + numbers.GetUpperBound(0));

​

        //Show sorting

        int[] numForSorting = { 8, 28, 9, 3, 15 };

        Console.WriteLine("Before Sorting");

        Console.WriteLine("numForSorting[0] =" + numForSorting[0]);

        Console.WriteLine("numForSorting[1] =" + numForSorting[1]);

        Console.WriteLine("numForSorting[2] =" + numForSorting[2]);

        Console.WriteLine("numForSorting[3] =" + numForSorting[3]);

        Console.WriteLine("numForSorting[4] =" + numForSorting[4]);

        Array.Sort(numForSorting);

        Console.WriteLine("After Sorting");

        Console.WriteLine("numForSorting[0] =" + numForSorting[0]);

        Console.WriteLine("numForSorting[1] =" + numForSorting[1]);

        Console.WriteLine("numForSorting[2] =" + numForSorting[2]);

        Console.WriteLine("numForSorting[3] =" + numForSorting[3]);

        Console.WriteLine("numForSorting[4] =" + numForSorting[4]);

        Console.WriteLine("");

    }

}

​

​