Parking.java

import java.util.ArrayList;

public class Parking<T extends Vehicle>{

    private ArrayList<T> vehicles = new ArrayList<>();

    public void addVehicle(T vehicle){
        vehicles.add(vehicle);
    }
  
    public void removeVehicle(int index) { 

        // Verifico che l'indice esistsa 
        if (index >= 0 && index < vehicles.size()) {
            
            vehicles.remove(index);
            
        } else {
            throw new IndexOutOfBoundsException("Posizione del veicolo non valida!");
        }
    }

    
    public void updateVehiclePriceAt(int index, double newPrice) {

        if (index >= 0 && index < vehicles.size()) {

            T vehicle = vehicles.get(index);
            vehicle.setPrice(newPrice);

        } else {
            throw new IndexOutOfBoundsException("Posizione del veicolo non valida!");
        }

    }
    
    public ArrayList<T> getVehiclesList() {
        return this.vehicles;
    }
}