void GreetAndFarewell(Salutation person)
{
Console.WriteLine(person.Greet());
Console.WriteLine(person.Farewell());
Console.WriteLine();
}
static void Main(string[] args)
{
// Use the Salutation class for a Walmart Greeter.
Salutation oldGuy = new Salutation("Welcome to Walmart!", "Thanks for shopping at Walmart!");
// Get the guy to talk...
Console.WriteLine();
}
private void Speak(Salutation speaker)
{
Console.WriteLine(speaker.Greet());
Console.WriteLine(speaker.SayFareWell());
}