class Car {
    int odo;
    String make;
    String model;
    double galsRemaining; // gallons
    double gasMileage;    // mpg
    double sizeOfTank;    // gallons
    int year;             // year of manufacture
    static int numCars;

    Car(String make, String model, int year) {
        this.make = make;
        this.model = model;
        this.year = year;
        this.odo = 0;

        numCars++;

        if (make.equals("Chevy") || make.equals("GM")) {
            this.sizeOfTank = 40;
        } else {
            this.sizeOfTank = 15;
        }
        if (make.equals("Chevy") && model.equals("Malibu")) {
            this.gasMileage = 3;
        } else {
            this.gasMileage = 28;
        }
        this.galsRemaining = this.sizeOfTank / 2;
    }

    String getMake() {
        return this.make;
    }

    String getModel() {
        return this.model;
    }

    void setGalsRemaining(double newGals) {
        this.galsRemaining = newGals;
    }

    int getYearsOld() {
        return 2025 - this.year;
    }

    void fillUp() {
        this.galsRemaining = this.sizeOfTank;
    }

    double getTankPerc() {
        return this.galsRemaining / this.sizeOfTank * 100;
    }

    void drive(double miles) {
        this.odo = this.odo + (int) miles;
        double gallonsUsed = miles / this.gasMileage;
        this.galsRemaining = this.galsRemaining - gallonsUsed;
    }
    


    public String toString() {
        return "a " + this.year + " " + this.make + " " + this.model +
            " with " + this.galsRemaining + " gallons in its tank";
    }

    public static void main(String args[]) {
        System.out.println("Hello car world!");

        Car stephensDreamCar = new Car("Ferrari","F-1",2025);
        Car stephensActualCar = new Car("Chevy","Malibu",2001);
        // Car raesCar = stephensActualCar;
        Car raesCar = new Car("Chevy","Malibu",2001);

        stephensActualCar.drive(4.5);

        System.out.println("Stephen's tank is " +
            stephensActualCar.getTankPerc() + "% full!");
        System.out.println("Rae's tank is " +
            raesCar.getTankPerc() + "% full!");
        
        System.out.println("Stephen drives this car: " + stephensActualCar);
    }
}