I'm reading a C# book, and in the section on Generics it has this example:

class Program
{
    static void Main(string[] args)
    {
        int[] intArray = { 1, 2, 3, 4, 5, 6 };

        PrintArray(intArray);
    }

    static void PrintArray <E> (E[] inputArray)
    { 
        foreach(E element in inputArray)
        {
            Console.WriteLine(element + " ");
        }
        Console.WriteLine("\n");
    }
}

Then afterwards is says you can call the generic method with an explicit type declaration:

PrintArray<int>(intArray);

What is doesn't say it what you gain from this. Why would you call it this way?