Description

Task Description:
Task 1: BetterHealth is a membership-based fitness club in Toronto. Customers can purchase a membership that provides a fixed number (e.g. 100) of free visits to the club upon registration. When the initial number of visits runs out, they can purchase additional visits as needed. All types of fitness equipment and all fitness classes offered in the club are open for this membership. Please write a Java program (Membership.java) for membership management.
The Membership class should have the following public interface:
1. public Membership(String name, int visits): A constructor to set up the member’s name and the initial number of visits allowed. The parameter visits is supposed to be positive (if not, initialize the number of visits to 0).
2. public String getName(): An accessor to return the member’s name.
3. public int getRemainingVisits(): An accessor to return the number of remaining visits.
4. public boolean isValid(): A method to decide if one’s membership is still valid (true if the number of remaining visits is greater than 0; false otherwise).
5. public boolean topUp (int additionalVisits): A method to add additional visits (represented by additionalVisits) to the remainingVisits. Returns true if the top-up succeeds and false otherwise. The top-up succeeds only If the given additionalVisits is non-negative.
6. public boolean charge(): A method that deducts 1 from the number of remaining visits when the membership is valid. Returns true if the charge succeeds and false otherwise. The charge succeeds only if the membership is valid before charging.
7. public boolean equipmentAllowed(): A method that indicates whether the equipment at the gym is available to this kind of membership.
Returns true for now; to be updated in Task 2.
8. public boolean classesAllowed(): A method that indicates whether the fitness classes at the gym are available to this kind of membership.
Returns true for now; to be updated in Task 2.
Write a tester program Task1MembershipTester to test the class you have written.
Follow the examples given in class (e.g., BankAccountTester), and create an object
from the class Membership above. Test the public interface of your class thoroughly
(each public method must be tested at least once). For accessor methods, print out the expected return value and the return value of your method (see the
BankAccountTester example) to compare. This tester class is not to be submitted for marking, but it is beneficial for you to make sure your Membership class works as intended.
Task 2: The club now introduces a new type of membership called
Since now we have two types of memberships (and imagine down the road we might have more), you should implement a hierarchy of classes to represent the different types of membership. At the top of the hierarchy, you must define an abstract class called BaseMembership defining the methods common to different types of memberships. BaseMembership has the following public interface:
1.public BaseMembership(String name, String type): A constructor to set up the member’s name and member’s type.
2.public String getName(): An accessor to return the member’s name.
3.public String getType(): An accessor to return a string that represents the type of membership.
4.public abstract boolean isValid(): An abstract method that should be overridden in the subclasses.
5.public boolean equipmentAllowed(): Set an initial return value and override in the subclasses.
6.public boolean classesAllowed(): Set an initial return value and override in the subclasses.
You must then define classes StandardMembership and PremiumMembership that inherit from BaseMembership, defining additional methods as needed.
StandardMembership should be implemented to model the type of membership in Task 1.
The class PremiumMembership should have the following public interface:
1. public PremiumMembership(String name, String
2. public boolean isValid(): A method to decide if one’s membership is still valid (If the current time is less than one year from the start time, it is valid). Please see the hint below.
3. public boolean equipmentAllowed(): Return true.
4. public boolean classesAllowed(): Return false.
5. public boolean poolAllowed(): Return true.
Hint:
/**
DateFormat f = new SimpleDateFormat(“yyyy-MM-dd”);
try {
} catch (ParseException e) {
e.printStackTrace();
}
Similarly, write a tester program Task2MembershipTester to test the classes you have written in Task 2. Create objects from the classes StandardMembership and PremiumMembership above. This tester class is not to be submitted.
What to submit:
Please complete Task 1 and Task 2 according to the requirements, documenting them properly using JavaDoc. Please define the classes using the exact names given here. Compile and test your code under the command line environment (e.g., by executing Terminal under macos or cmd under Windows).
➔ Submit 4 source files: Membership .java , BaseMembership .java , StandardMembership.java , and PremiumMembership .java ). Nothing else (including the tester classes) should be submitted.
➔ DO NOT submit .class files! Submit .java files ONLY. DO NOT use other archival formats such as .RAR or .7z.
Important Note:
(1) Your assignment will be given a zero mark if only the compiled files (.class files) are submitted. Please make sure to submit the source files (.java files).
(2) Please make sure your code compiles under the command line (i.e., without an IDE). Do not put any package statement at the beginning of your source file. If you are using an IDE, this is especially important because some IDEs put your code under a particular package for your project. Any code that does not compile under the command line can only receive 20/100. Remarking requests like “…but the code works on my computer/in my IDE” will not be entertained. No exceptions.
Marking Scheme:
Style (variable naming, indentation, & Layout) _____/10
JavaDoc Comments _____/10
Code Compiles? _____(yes/no)
Successful Execution of Test Cases _____/80
Total _____/100
According to this marking scheme the maximum mark you can get for code that does
not compile is 20/100.