[SerializableAttribute]
[ComVisibleAttribute(true)]
public abstract class Array : ICloneable, IList, ICollection, 
IEnumerable, IStructuralComparable, IStructuralEquatable

using System;
namespace CSharpProgram
{
    class Program
    {
        static void Main(string[] args)
        {
            // Creating an array
            int[] arr = new int[6] { 5, 8, 9, 25, 0, 7 };
            // Creating an empty array
            int[] arr2 = new int[6];
            // Displaying length of array
            Console.WriteLine("length of first array: "+arr.Length);
            // Sorting array
            Array.Sort(arr);
            Console.Write("First array elements: ");
            // Displaying sorted array
            PrintArray(arr);
            // Finding index of an array element
            Console.WriteLine("\nIndex position of 25 is "+Array.IndexOf(arr,25));
            // Coping first array to empty array
            Array.Copy(arr, arr2, arr.Length);
            Console.Write("Second array elements: ");
            // Displaying second array
            PrintArray(arr2);
            Array.Reverse(arr);
            Console.Write("\nFirst Array elements in reverse order: ");
            PrintArray(arr);
        }
        // User defined method for iterating array elements
        static void PrintArray(int[] arr)
        {
            foreach (Object elem in arr)
            {
                Console.Write(elem+" ");
            }
        }
    }
}

length of first array: 6
First array elements: 0 5 7 8 9 25
Index position of 25 is 5
Second array elements: 0 5 7 8 9 25
First Array elements in reverse order: 25 9 8 7 5 0