css1>// import namespaces
using system;
using system.collections;
// declare namespace
namespace msdnaa
{
    // declare application class
    class quicksortapp
    {
        // application initialization
        static void main (string[] szargs)
        {
            // describe program function
            console.writeline ("quicksort c#.net sample application\n");
            // prompt user for filenames
            console.write ("source: ");
            string szsrcfile = console.readline ();
            console.write ("output: ");
            string szdestfile = console.readline ();
            // todo: read contents of source file
            arraylist szcontents = new arraylist ();
        }
    }
}