static void Main(string[] args)
{
DummyProduct product = new DummyProduct();
Shop shop1 = new Shop("Shop 1");
Shop shop2 = new Shop("Shop 2");
Shop shop3 = new Shop("Shop 3");
Shop shop4 = new Shop("Shop 4");
product.Attach(shop1);
product.Attach(shop2);
product.Attach(shop3);
product.Attach(shop4);
product.ChangePrice(26.0f);
Console.ReadLine();
}
static void Main(string[] args)
{
DummyProduct product = new DummyProduct();
Shop shop1 = new Shop("Shop 1");
Shop shop2 = new Shop("Shop 2");
Shop shop3 = new Shop("Shop 3");
Shop shop4 = new Shop("Shop 4");
product.Attach(shop1);
product.Attach(shop2);
product.Attach(shop3);
product.Attach(shop4);
product.ChangePrice(26.0f);
Console.ReadLine();
}