static void Main(string[] args)
{
Inventory inventory = new Inventory();
inventory.Attach(new InventoryCount(inventory));
inventory.Attach(new InventoryDisplay(inventory));
Console.WriteLine("=Adding A=");
inventory.AddProduct(new Product("A"));
Console.WriteLine("=Adding P=");
Product p = new Product("P");
inventory.AddProduct(p);
Console.WriteLine("=Adding Z=");
inventory.AddProduct(new Product("Z"));
Console.WriteLine("=Removing P=");
inventory.RemoveProduct(p);
ArrayList ps = new ArrayList();
ps.Add(new Product("L1"));
ps.Add(new Product("L2"));
ps.Add(new Product("L3"));
Console.WriteLine("=Adding L1, L2, L3=");
inventory.AddProducts(ps);
Console.WriteLine("=Removing L1, L2, L3=");
inventory.RemoveProducts(ps);
}
public void AddProducts(IEnumerable ps)
{
Inventory inv = (Inventory)(object)this;
foreach (Product p in ps)
{
inv.AddProduct(p);
}
}