Here is the Java code for the problem:

```java
// Base class
public class HotelRoom {
private int roomNumber;
private double nightlyRentalRate;

// Constructor
public HotelRoom(int roomNumber) {
this.roomNumber = roomNumber;
if (roomNumber

Question

Here is the Java code for the problem:

```java
// Base class
public class HotelRoom {
    private int roomNumber;
    private double nightlyRentalRate;

// Constructor
    public HotelRoom(int roomNumber) {
        this.roomNumber = roomNumber;
        if (roomNumber <= 100) {
            this.nightlyRentalRate = 500;
        } else {
            this.nightlyRentalRate = 800;
        }
    }

// Getters
    public int getRoomNumber() {
        return roomNumber;
    }

public double getNightlyRentalRate() {
        return nightlyRentalRate;
    }
}

// Extended class
public class Suite extends HotelRoom {
    // Constructor
    public Suite(int roomNumber) {
        super(roomNumber);
        double surcharge = 400;
        this.nightlyRentalRate += surcharge;
    }
}

// Main class to demonstrate the usage
public class Main {
    public static void main(String[] args) {
        HotelRoom hotelRoom = new HotelRoom(50);
        System.out.println("Hotel Room Number: " + hotelRoom.getRoomNumber());
        System.out.println("Hotel Room Rate: " + hotelRoom.getNightlyRentalRate());

Suite suite = new Suite(150);
        System.out.println("Suite Room Number: " + suite.getRoomNumber());
        System.out.println("Suite Room Rate: " + suite.getNightlyRentalRate());
    }
}
```

This program first creates an object of the `HotelRoom` class with a room number of 50. It then prints out the room number and the nightly rental rate. After that, it creates an object of the `Suite` class with a room number of 150. It then prints out the room number and the nightly rental rate for the suite, which includes the surcharge.

Knowee AI · Accepted Answer