static void Main(string[] args)
{
// Create price watch for Carrots and attach restaurants that buy carrots from suppliers.
Carrots carrots = new Carrots(0.82);
carrots.Attach(new Restaurant("Mackay's", 0.77));
carrots.Attach(new Restaurant("Johnny's Sports Bar", 0.74));
carrots.Attach(new Restaurant("Salad Kingdom", 0.75));
// Fluctuating carrot prices will notify subscribing restaurants.
carrots.PricePerPound = 0.79;
carrots.PricePerPound = 0.76;
carrots.PricePerPound = 0.74;
carrots.PricePerPound = 0.81;
Console.ReadKey();
}
private static void Main()
{
// Create price watch for Carrots
// and attach restaurants that buy carrots from suppliers.
Carrots carrots = new Carrots(0.82);
carrots.Attach(new Restaurant("Mackay's", 0.77));
carrots.Attach(new Restaurant("Johnny's Sports Bar", 0.74));
carrots.Attach(new Restaurant("Salad Kingdom", 0.75));
// Fluctuating carrot prices will notify subscribing restaurants.
carrots.SetPricePerPound(0.79);
Console.WriteLine();
carrots.SetPricePerPound(0.76);
Console.WriteLine();
carrots.SetPricePerPound(0.74);
Console.WriteLine();
carrots.SetPricePerPound(0.81);
Console.WriteLine();
}
