basics programing some code problem

Acually , whenever try to run this code , i got exception like Arrayoutofbound exception.

what is problem, can you explain this, it is mistake in my code. iam awaiting for your replay

class Program
{
// main program excution
static void Main(string[] args)
{
try
{

Console.WriteLine("sri,{0}!", args[0]);
Console.WriteLine("------hai second-------");
Console.ReadLine();
}
catch (IndexOutOfRangeException ex)
{
Console.WriteLine("please, check your range ",ex);
}
}

Srinivasulu Enugu