/*public static Product[] FilterAffordableProducts(Product[] products)
{
var result = new ArrayList();
foreach (var product in products)
{
if (product.Cost < 40)
result.Add(product);
}
return (Product[]) (result.ToArray(typeof (Product)));
}
public static Product[] FilterOverStockedProducts(Product[] products)
{
var result = new ArrayList();
foreach (var product in products)
{
if (product.Units > 50)
result.Add(product);
}
return (Product[])(result.ToArray(typeof(Product)));
}*/
public static Product[] Filter(Product[] products, IProductCriteria productCriteria)
{
var result = new ArrayList();
foreach (var product in products)
{
if (productCriteria.IsSatisfiedBy(product))
result.Add(product);
}
return (Product[])(result.ToArray(typeof(Product)));
}
/*public static Product[] Filter(Product[] products, FilterItemDelegate<Product> filterCriteria)
{
var result = new ArrayList();
foreach (var product in products)
{
if (filterCriteria(product))
result.Add(product);
}
return (Product[])(result.ToArray(typeof(Product)));
}*/
/* public static Product[] Filter(Product[] products, Func<Product, bool> filterCriteria)
{
var result = new ArrayList();
foreach (var product in products)
{
if (filterCriteria(product))
result.Add(product);
}
return (Product[])(result.ToArray(typeof(Product)));
}*/
public static Product[] Filter(Product[] products, Predicate<Product> filterCriteria)
{
var result = new ArrayList();
foreach (var product in products)
{
if (filterCriteria(product))
result.Add(product);
}
return (Product[])(result.ToArray(typeof(Product)));
}
public static void Sort(Product[] products, IProductComparer comparer)
{
for(var i=0; i<products.Length-1; i++)
for (var j = i + 1; j < products.Length; j++)
{
if (comparer.Compare(products[i], products[j]) > 0)
{
var temp = products[i];
products[i] = products[j];
products[j] = temp;
}
}
}
public static void Print(Product[] products)
{
for(var i=0; i<products.Length; i++)
Console.WriteLine(products[i]);
}
public static bool AffordableProductCriteria(Product product)
{
return product.Cost < 40;
}