static void Main(string[] args)
{
Invoice invoice = new Invoice("P1", "Keyboard", 10, 12.00);
double cost = invoice.getInvoiceAmount();
Console.WriteLine("Part {0}, Desc {1}, Quantity {2}, Price Each {3:C}, Total Cost {4:C}", invoice.PartNumber, invoice.PartDescription, invoice.Quantity, invoice.Price, cost);
Console.WriteLine();
Invoice invoice2 = new Invoice("P2", "Mouse", 5, -5.50); // let this be the negative price
double cost2 = invoice2.getInvoiceAmount();
Console.WriteLine("Part {0}, Desc {1}, Quantity {2}, Price Each {3:C}, Total Cost {4:C}", invoice2.PartNumber, invoice2.PartDescription, invoice2.Quantity, invoice2.Price, cost2);
Console.ReadLine();
}
