// Vehicle class
class Vehicle {
    private String brand;
    private int year;

    public Vehicle(String brand, int year) {
        this.brand = brand;
        this.year = year;
    }

    public String getBrand() {
        return brand;
    }

    public int getYear() {
        return year;
    }

    public void displayInfo() {
        System.out.println("Vehicle: " + brand + " - Year: " + year);
    }
}

// Car class extending Vehicle
class Car extends Vehicle {
    private int numberOfDoors;

    public Car(String brand, int year, int numberOfDoors) {
        super(brand, year);
        this.numberOfDoors = numberOfDoors;
    }

    public int getNumberOfDoors() {
        return numberOfDoors;
    }

    @Override
    public void displayInfo() {
        super.displayInfo();
        System.out.println("Number of doors: " + numberOfDoors);
    }
}

// Main class to instantiate and use the vehicle classes
public class Main {
    public static void main(String[] args) {
        Vehicle vehicle1 = new Vehicle("Generic Vehicle", 2022);
        vehicle1.displayInfo();

        Car car1 = new Car("Toyota", 2023, 4);
        car1.displayInfo();
    }
}