static void Main(string[] args)
{
//List to contain items
GroceryItemCollection list = new GroceryItemCollection();
//Items created using explicit constructor
list.Add(new GroceryItem("4L Milk", 3.87, new DateTime(2017, 5, 28)));
list.Add(new GroceryItem("500g Cottage Cheese", 4.28, new DateTime(2017, 7, 15)));
list.Add(new GroceryItem("1 Tin Mushroom Soup", 0.99, DateTime.MaxValue));
list.Add(new GroceryItem("15kg Dog Food", 29.99, new DateTime(2019, 9, 23)));
GroceryItem item = new GroceryItem("Test", 29.99, new DateTime(2019, 9, 23));
Console.WriteLine(item.Description);
//Natural order
Console.WriteLine("Natural Order:");
OutputHelper.PrintList(list);
//Line feeds between two different display methods
Console.WriteLine("\n\n\n");
//Sorted order
list.Sort();
Console.WriteLine("Sorted Order: [Price Descending]");
OutputHelper.PrintList(list);
}
public static void ShowItem(GroceryItemCollection groceryItems, string header)
{
//output header
Console.WriteLine($"{header}");
Console.WriteLine($"{"Grocery Item",-30} {"Price",5} {"Expires",-15}");
Console.WriteLine(new string('-', 55));
//output Invoice Items
foreach (GroceryItem item in groceryItems)
{
Console.WriteLine(item);
}
Console.WriteLine(new string('-', 55));
//Calculate Total by call method Total in GroceryItemCollection class
Console.WriteLine($"{"Total:",-30} {groceryItems.Total,5}");
}
/// <summary>
/// Prints the GroceryItems in predefined format
/// </summary>
/// <param name="items">the items to print</param>
/// <param name="order">the order to print</param>
public static void Print(GroceryItemCollection items, string order)
{
Console.WriteLine(order);
Console.WriteLine("{0, -30} {1, 5} {2, 6}", "Grocery Item", "Price", "Expires");
Console.WriteLine(new string('-', SEPARATOR_LENGTH));
foreach (GroceryItem item in items)
{
if (item.ExpirationDate == DateTime.MaxValue.Date)
{
Console.WriteLine("{0, -30} {1, 5:F2} {2, 6}", item.Description, item.Price, item.ExpirationDate.ToString("<Never>"));
}
else
{
Console.WriteLine("{0, -30} {1, 5:F2} {2, 6}", item.Description, item.Price, item.ExpirationDate.ToString("ddd MMM d, yyyy"));
}
}
Console.WriteLine(new string('-', SEPARATOR_LENGTH));
Console.WriteLine($"Total: {items.Total,29:F2}\n\n");
}
static void Main(string[] args)
{
//declare GroceryItemCollection
GroceryItemCollection groceryItems = new GroceryItemCollection();
//Add an object
groceryItems.Add(new GroceryItem("4L Milk", 3.87m, DateTime.Parse("2018,02,13")));
groceryItems.Add(new GroceryItem("500g Cottage Cheese", 4.28m, DateTime.Parse("2018,03,5")));
groceryItems.Add(new GroceryItem("1 Tin Mushroom Soup", 0.99m, DateTime.MaxValue));
groceryItems.Add(new GroceryItem("15kg Dog Food", 29.99m, DateTime.Parse("2019,12,19")));
//Ouput Natural Order to screen
ConsolePrinter.ShowItem(groceryItems, "Natural Order:");
//Sort Order by Price
groceryItems.Sort();
Console.WriteLine(Environment.NewLine);
//Output Sorted Order to screen
ConsolePrinter.ShowItem(groceryItems, "Sorted Order: [Price Descending]");
Console.ReadLine();
}