static void Main(string[] args)
{
StingPatrol biff = new StingPatrol(72);
NectarCollector bertha = new NectarCollector(45);
// Defender can reference biff since they implement the same interface
// Defender itself cannot be initialized since it is only an interface, but it can point to the 'biff' object
IStingPatrol defender = biff;
INectarCollector cutiePie = bertha;
// Biff's object remains since the defender still references it
biff = null;
// Assigning an object straight to an interface reference variable
INectarCollector gatherer = new NectarStinger(90);
// In the following, the array can include several different class types as they all inherit from 'Worker'
// Bee 0 & bee 2 will be assigned the job as they both inherit the INectarCollector
Worker[] bees = new Worker[3];
bees[0] = new NectarCollector(40);
bees[1] = new StingPatrol(60);
bees[2] = new NectarStinger(85);
for (int i = 0; i < bees.Length; i++)
{
if (bees[i] is INectarCollector)
{
bees[i].DoThisJob("Nectar Collector", 3);
}
}
// `is` tells you what an object implements
// `as` tells the compiler how to treat your object
IWorker[] workerBees = new IWorker[4];
workerBees[0] = new NectarCollector(40);
workerBees[1] = new StingPatrol(60);
workerBees[2] = new NectarStinger(85);
// RoboBee can only be added if list is `IWorker`, as opposed to `Worker` in the `bees` list
workerBees[3] = new RoboBee();
for (int i = 0; i < workerBees.Length; i++)
{
if (workerBees[i] is INectarCollector)
{
INectarCollector thisCollector;
// Use `as` to treat object as an INectarCollector Implementation. Only those methods are visible
thisCollector = workerBees[i] as INectarCollector;
thisCollector.GatherNectar();
}
}
}
public Queen(Worker[] workers, double weightMG)
: base(weightMG)
{
this.workers = workers;
}
