/// <summary>
/// Entry point into console application.
/// </summary>
static void Main()
{
// Create receiver, command, and invoker
var receiver = new Receiver();
var command = new ConcreteCommand(receiver);
var invoker = new Invoker();
// Set and execute command
invoker.SetCommand(command);
invoker.ExecuteCommand();
// Wait for user
Console.ReadKey();
}