Assignment 6 Solution

Description

As you know that for some hotels, they contain different type of rooms. Everyday, several rooms have been checked in and several rooms have been checked out, during the process the hotel also have incomes accordingly. Then you are asked

to help a hotel owner to design a room management system. The system is very simple, and it only contains two types of rooms: Ordinary Room and Luxury Room.

General describe your task

Your task is to design following classes
    1. Room.

        ◦ Do not modify or remove any methods or fields that have been already defined.

        ◦ You can add methods or fields that you think are necessary.

    2. LuxuryRoom and OrdinaryRoom. Those are the subclasses of the class Room.

        ◦ LuxuryRoom: adding a private data field named addBed (boolean) with an initial value false
        ◦ OrdinaryRoom: adding a private data field name breakfastCount (int) with an initial value 0.
        ◦ toString method: Override toString method in each subclasses. Here the return format must strictly follow the requirement.

        ◦ checkOut and checkIn method: Override the abstract method in each subclasses.

        ◦ You can add other methods or attributes that you think are necessary.

    3. The enum class Day. It is an enumeration class that is used to record everyday information including the name of the current day, the rate of basic price and the gift our hotel would given. When you design the enumeration class, you need to use following seven constants directly. However only adding following statements into enum class are not enough, you need to complement all missing code (you think are necessary) in it.

MONDAY("MON", 0.8, "Fruits"),

TUESDAY("TUE", 0.75, "Drinks"),

WEDNESDAY("WED", 0.71, "GYM CARD"),

THURSDAY("THU", 0.68, "Fruits"),

FRIDAY("FRI", 1, "GYM CARD"),

SATURDAY("SAT", 1, "HOT SPRINGS"),

SUNDAY("SUN", 0.95, "SWIMMING");

private String name;

private double rate;

private String gift;

    4. ConcreteHotel. It is a concrete class of the interface Hotel, in which you need to implement all the abstract methods that are declared in the interface Hotel. In

concrete Hotel, the following one important parameter must be defined. Beyond that, you can define any attributes that you think are important.

    • rooms: It is a List<Room> type, which contains all rooms, including two
different types, in concrete hotel.
private List<Room> rooms = new ArrayList<>();


5. Other import parameters:

However, there are several initial parameters needs to mention to you, where to define those parameters are determined to your design.

    • The price of breakfast for one person in Ordinary Room is 180.

    • The price of adding a bed in Luxury Room is 250.

    • The initial basic price of Luxury Room is 1200 per night (the breakfasts are included).

    • The initial basic price of Ordinary Room is 500 per night (adding bed are not allowed)

    • The calculation of total price for one room per night is For Luxury Room:

Basic price of Luxury Room * the rate of price in current day + the price of add bed (if need)
For ordinary Room:
Basic price of Ordinary Room * the rate of price in current day + the price of breakfast * the number of breakfast.

    • The initial value of day is Day.MONDAY


Your tasks

For the whole project, you needn’t input anything. The class Client.java, being composited by several static methods, serves as the sample input. Please read carefully about what we would do in Client (The official test case is another Client.java class, which is similar to this one), and the sample output for those tasks. Other than that, you also need to read carefully about the annotations in Hotel.java, from which you can understand what to do in each abstract method.

task001_getRoomInfo();

task002_getSubClassInfo();

Explanation 1: The format of toString() method in class Room
Luxury Room: “L” RoomNumber whether add bed

Ordinary Room: “O” RoomNumber the count of breakfast

task01_addLuxuryRoom();

L R1 false

task02_addOrdinaryRoom();

OR20

task03_addMoreRoom();

L R1 false

OR20

L R3 false

L R4 false

L R5 false

L R6 false

L R7 false

OR80

OR90

OR100

OR110

OR120

OR130

OR140

OR150

OR160

OR170

L R18 false

L R19 false

task04_getTwoTypeRoomPrice();

1200 500

task05_setTwoTypeRoomPrice();

1300 600

Explanation 2: The format of toString() method in enum Day Day{name=’name’, rate=’rate’, gift=’gift’}

task06_displayEveryDayInfo(); Day{name='MON', rate=0.8, gift='Fruits'} Day{name='TUE', rate=0.75, gift='Drinks'} Day{name='WED', rate=0.71, gift='GYM CARD'} Day{name='THU', rate=0.68, gift='Fruits'} Day{name='FRI', rate=1.0, gift='GYM CARD'} Day{name='SAT', rate=1.0, gift='HOT SPRINGS'} Day{name='SUN', rate=0.95, gift='SWIMMING'}

Explanation 3: Check in process



















task07_checkInForFirstDay();

R1 R2 R3 R4 R8 R9

Explanation 4: Check out process

















Explanation 5: How can we get to tomorrow?

























task08_checkOutForSecondDay();
R3 R4 R9

task09_displayYesterdayIncome();

5420

task10_displayTodayInfo(); Day{name='TUE', rate=0.75, gift='Drinks'}

task11_displayTotalPriceForOneRoom(); 1225


task12_operateForSeveralDays();

task13_displayAllCheckedRoomNumber(); R2 R4 R5 R9 R11 R19

task14_displayYesterdayIncome();

9082

task15_displayTodayInfo();

Day{name='FRI', rate=1.0, gift='GYM CARD'}

task16_displayRecentDaysIncome();

53024



Rules

    1. You need to submit those “.java” files including
Hotel.java

ConcreteHotel.java
Day.java

Room.java

LuxuryRoom.java OrdinaryRoom.java.

    2. Do not modify or remove any methods or fields that have been already defined in these two files Hotel.java and Room.java.
    3. No Chinese characters are allowed to appear in your code.

    4. No package included.

    5. The output must strictly follow the description and the sample of each task, and you can only get points for each task only when your output are completely the same as the output of test case.

    6. Please submit your assignment on the SAKAI site of your lab section. Marks will be deducted if you submit later than the deadline. If you submit your assignment within 24 hours after the deadline (grace period), your score will be half of the score you could get if the submission was made before the deadline. Assignments submitted after the grace period will not be graded (meaning you will get a zero for the assignment).