//default constuctor that is empty
//Problem 2: Define constructors for the GSM,
public GSM()
{
this.model = null;
this.manufacturer = null;
this.price = null;
this.owner = null;
this.battery = null;
this.display = null;
}
// full constructor null, also available
public GSM(string model, string manufacturer, double price, string owner,
Battery battery, Display display)
: this()
{
this.model = model;
this.manufacturer = manufacturer;
this.price = price;
this.owner = owner;
this.battery = battery;
this.display = display;
}
static void Main()
{
// 7. test GSM class
Console.WriteLine("Task 7: Write a class GSMTest to test the GSM class");
Battery battery = new Battery("LiLon 2200", 20, 5);
Display display = new Display(5, 1000000000);
GSM tel1 = new GSM("S5mini", "Samsung", 3.2, "i", battery, display);
GSM tel2 = new GSM("Alpha 5", "Samsung", 3.2, "i", battery, display);
GSM tel3 = new GSM("Xperia Z", "Sony", 700, "Dwayne Johnson", battery, display);
GSM[] telephones = new GSM[] { tel1, tel2, tel3 };
foreach (GSM tel in telephones)
{
Console.WriteLine(tel);
}
Console.WriteLine(GSM.iPhone4S);
}