static void Main(string[] args)
{
var bulb = new Bulb();
var turnOn = new TurnOn(bulb);
var turnOff = new TurnOff(bulb);
var remote = new RemoteControl();
remote.Submit(turnOn); // Bulb has been lit!
remote.Submit(turnOff); // Darkness!
Console.ReadLine();
}
public TurnOn(Bulb bulb)
{
mBulb = bulb ?? throw new ArgumentNullException("Bulb", "Bulb cannot be null");
}