public void Using()
{
var hayes = new AHayesModem();
var zoom = new AZoomModem();
var ernie = new AErnieModem();
var unix = new AUnixModemConfigurator();
hayes.Accept(unix);
zoom.Accept(unix);
ernie.Accept(unix);
}
public void Visit(AHayesModem m)
{
Console.WriteLine("Hayes A");
}
