main.java

public class Main {
    public static void main(String[] args) {

        Room room = new Room(320, 200);
        Receptionist receptionist = new Receptionist("Iliqn", "night shift");

        System.out.println();

        System.out.println("The sum of the price from all nights is: " + room.calculateTotalCost(5));

        System.out.println("The room number is: " + room.getRoomNumber() + "\nThe price per night is: " + room.getPricePerNight());

        System.out.println();

        room.setRoomNumber(321);
        room.setPricePerNight(180);

        System.out.println("The new room number is: " + room.getRoomNumber());
        System.out.println("The new price per night is: " + room.getPricePerNight());

        System.out.println();

        System.out.println("The new sum of the price from all nights is: " + room.calculateTotalCost(5));

        System.out.println();

        System.out.println("The name of the receptionist is: " + receptionist.getName() + "\nHis shift is: " + receptionist.getShift());

        System.out.println();

        receptionist.setName("Ilko");
        receptionist.setShift("day shift");

        System.out.println("The new name of the receptionist is: " + receptionist.getName());
        System.out.println("His new shift is: " + receptionist.getShift());
        System.out.println(receptionist.checkIn());
    }
}