AECar Driver

import java.util.ArrayList;
import java.util.Collections;

public class Driver {
    public static void main(String[] args) {
        AECar eCar1 = new Pluggable("Chevy", "Volt", true, 33520, 18.4, true);
        AECar eCar2 = new Battery("Kia", "Soul", false, 17490, 30, 3);
        AECar afCar1 = new Hydrogen("Honda", "Clarity", false, 36620, 7, "null");
        AECar afCar2 = new Biofuel("Chevy", "Cruze", false, 17995, 13.5, "null");

        ArrayList<AECar> CarList = new ArrayList<AECar>();
        CarList.add(eCar1);
        CarList.add(eCar2);
        CarList.add(afCar1);
        CarList.add(afCar2);

        Collections.sort(CarList);
        System.out.println(CarList);

    }
}