Car.java

public abstract class Car {
    protected String vinNumber;
    protected String make;
    protected String model;
    protected int mileage;

    public Car(String vinNumber, String make, String model, int mileage) {
        this.vinNumber = vinNumber;
        this.make = make;
        this.model = model;
        this.mileage = mileage;
    }

    public String getVinNumber() {
        return vinNumber;
    }

    public String getMake() {
        return make;
    }

    public String getModel() {
        return model;
    }

    public int getMileage() {
        return mileage;
    }

    public String getInfo() {
        return String.format("VIN: %s, Make: %s, Model: %s, Mileage: %d", vinNumber, make, model, mileage);
    }
}