static void Main()
{
Battery battery = new Battery();
//battery.HoursIdle = -2;
Console.WriteLine(battery.HoursIdle);
GSM gsm = new GSM("Lumia", "Nokia", -2, "Pesho");
}
public GSM(string model, string manufacturer, double price, string owner, Battery battery, Display display)
{
this.MODEL = model;
this.MANIFACTURER = manufacturer;
this.PRICE = price;
this.OWNER = owner;
this.BATTERYCHARACTERISTICS = battery;
this.DISPLAYCHARACTERISTICS = display;
}