Array Reverse in C#

class Arrayreverse
    {
        public void show()
        {
            int[] ar = new int[] { 1, 2, 3, 4 };
            int[] ra = new int[4];
            int j=0;
            for(int i=ar.Length-1;i>=0;i--)
            {
                ra[j] = ar[i];
                Console.Write("{0} ",ra[j]);
                j++;
            }
        }
    }