public Laptop (string model, decimal price, string manifacturer = null, string processor = null,
string ram = null, string graphicsCard = null, string hdd = null, string screen = null,
Battery battery = null) :this (model, price)
{
this.Manifacturer = manifacturer;
this.Processor = processor;
this.Ram = ram;
this.GraphicsCard = graphicsCard;
this.Hdd = hdd;
this.Screen = screen;
this.Battery = battery;
}
static void Main(string[] args)
{
Battery lion = new Battery("Li-Ion, 4-cells, 2550 mAh");
Battery nicd = new Battery("Ni-Cd", (float)4.5);
Laptop lpt_first = new Laptop("Lenovo Yoga 2 Pro", (decimal)869.88, "Lenovo", "Intel Core i5-4210U (2-core, 1.70 - 2.70 GHz, 3MB cache)", "8 GB", "128GB SSD", "Intel HD Graphics 4400", "13.3\" (33.78 cm) – 3200 x 1800 (QHD+), IPS sensor display", lion);
Laptop lpt_second = new Laptop("Aspire E3-111-C5GL", (decimal)259.49);
Laptop lpt_third = new Laptop("Acer some model", (decimal)1567.43, battery: nicd, processor: "3.2 GHz", ram: "16 GB");
Console.WriteLine(lpt_first.ToString());
Console.WriteLine();
Console.WriteLine(lpt_second.ToString());
Console.WriteLine();
Console.WriteLine(lpt_third.ToString());
}
