static void Main(string[] args)
{
//Class2 c3 = new Class3
//{
// Name = "Kalle",
// Age = 45,
// Adress = "Blåbärsvägen 3"
//};
List <IDrive> vehicles = new List <IDrive>()
{
new FuelVehicle("ABC123", 100),
new FuelCar("ABC123", 150)
{
FuelLevel = 100
},
new Moped("ABD234"),
new Vehicle("EFR567")
};
//Loopar på alla vehicles
foreach (var vehicle in vehicles)
{
//Kör drive metoden den mest specialiserade metoden körs
//Polymorfismens andra regel
Console.WriteLine(vehicle.Drive(1));
//Returnerar null om casten ej lyckas
Moped moped3 = vehicle as Moped;
//?. är en null check om moped3 är null avbryts executeringen och DoSound() anroppas aldrig
Console.WriteLine(moped3?.DoSound());
//Om vehicle är en Moped casta till en Moped och tilldela variabeln moped2 annars false
if (vehicle is Moped moped2)
{
//moped2 har en DoSound() metod
Console.WriteLine(moped2.DoSound());
//Unsafe cast generar en exeption om den misslyckas
Moped moped = (Moped)vehicle;
Console.WriteLine(moped.DoSound());
}
}
}
static void Main(string[] args)
{
//Class2 c3 = new Class3
//{
// Name = "Kalle",
// Age = 45,
// Adress = "Blåbärsvägen 3"
//};
List <Vehicle> vehicles = new List <Vehicle>()
{
new FuelVehicle("ABC123", 100),
new FuelCar("AAA000", 150)
{
FuelLevel = 100
},
new Moped("BBB111"),
new Vehicle("CCC222")
};
foreach (var vehicle in vehicles)
{
Console.WriteLine(vehicle.Drive(1));
Moped moped3 = vehicle as Moped;
Console.WriteLine(moped3?.DoSound());
if (vehicle is Moped moped2)
{
Console.WriteLine(moped2.DoSound());
Moped moped = (Moped)vehicle;
Console.WriteLine(moped.DoSound());
}
}
Console.ReadLine();
}