public class VisitingVehicleCounter extends VehicleCounter implements VehicleVisitor {
	
	public void count(Vehicle[] vehicles) {
		for (Vehicle vehicle: vehicles) {
			vehicle.accept(this);
		}
	}
	
	public void visit(Car car) {
		++numCars;
	}
	
	public void visit(Bike bike) {
		++numBikes;
	}
	
	public void visit(Motorbike motorbike) {
		++numMotorbikes;
	}
	
}