This document describes a gym management system project created by David O'Connor. The system allows users to manage members, employees, equipment, and fitness classes. It includes domain classes for each entity, collections to store data, a user interface, and functionality to save and load data. Search and sorting algorithms are implemented. Inheritance is used between the person, member, and employee classes. The system provides options for administrators to add, remove, view, search, and sort data for each entity type through the user interface.

1. GYM Management System
Accelerated Object Oriented Programming 2: Peter Given
Submitted By: David O’ Connor (KCOMP_G_Y6)
Submitted on: 30th
April 2015

2. Table of Contents
1. Introduction........................................................................................................................ 3
2. Design..................................................................................................................................4
3. Implementation................................................................................................................... 4
4. Coding the Domain classes...................................................................................................5
5. Testing the Domain Classes .................................................................................................5
6. Collections ........................................................................................................................... 5
7. UserInterface....................................................................................................................... 6
8. Save and Load..................................................................................................................... 7
9. Search/Algorithm................................................................................................................ 8
10. Robustness....................................................................................................................... 8
11. Inheritance ...................................................................................................................... 9
12. Use Case Diagram.......................................................................................................... 10
13. Class Descriptions.......................................................................................................... 11
14. USER GUIDE:............................................................................................................... 12
14.1. Load Data.................................................................................................................. 12
14.2. Member..................................................................................................................... 12
14.2.1. Member Details.......................................................................................................... 12
14.3. Employee ................................................................................................................... 13
14.3.1. Employee Details........................................................................................................ 13
14.4. Equipment................................................................................................................. 14
14.4.1. Equipment Details...................................................................................................... 14
14.5. Fitness Classes............................................................................................................ 15
14.5.1. Fitness Classes Details................................................................................................ 15
14.6. Adding Members to Classes....................................................................................... 16
15. Conclusion..................................................................................................................... 17

3. 1. Introduction
For my project I have chosen to design a system that will manage the day to day business of a
gym. This system will allow the user to add new members to the gym, add new employees
for the gym and also add new fitness classes. Once a person has become a member they are
assigned a membership number and the new member will therefore be allowed to book a
fitness class.
The administrator of the gym system can add, delete and view member details. The
administrator can also view and search the members of the gym. All the information can be
saved and loaded by the administrator. The system can also view and search employee details
and fitness classes.

4. 2. Design
3. Implementation
Withinthe implementationIhave appliedmyknowledge of using:
JMenuFrame:
JOptionPane:

5. 4. Coding the Domainclasses
In this project I have written five domain classes which are person class, member class,
employee class, equipment class and fitnessClasses class. In these classes they is class
header, private attributes, null constructor, full constructor, other constructor (so as to give
the user flexibility) set and get methods and a to String method in each one of these classes.
5. Testing the Domain Classes
For each one of these domain classes I’ve tested the null constructor, full constructor, other
constructors, the set and get methods and the to string method.
6. Collections
For data collection within this project I used Arraylists to store the relevant information. An
Arraylist is a data structure and is used to store the temporary values.
Above are an example of an arraylists within this project that I used an array list was as
follows, there are five array list of type memList, empList, equipList, fitClassList and
classList are values which will be stored temporally.

6. 7. UserInterface

7. 8. Save and Load
There are two types of streams that can be used in Java
 Output stream has a destination to which the data items are going, which allows the
user to output a sequence of values of data type byte. This is done when saving data.
 Input stream is a source from which the data items come from and allows us to read
an array of bytes. This is done when loading/retrieving data that’s already been saved

8. 9. Search/Algorithm
Search algorithm finds the position of a specified value that is required within a sorted array
list.
Within this code the search algorithm is looking for a name in which will retrieve the user’s
input employee’s details. It will go through the array list until it finds a matching identifier
once it finds a match it will display those details if no id is found it should return no results.
10. Robustness

9. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 9 of 17
11. Inheritance
In the member and employee classes I’ve used the keyword extends (inheritance) in the class
header. Member and Employee is a child class of the Person class. This means that member and
employee class inherits all the attributes and methods of the person class. I used the super() in
member class to call on these from the person class. I also used super.toString to call on a string
representation.
Aggregation
I’ve usedaggregationinthe holdclassandthe loanclass.I’ve usedanaggregate (composite) classthat
modelsabookin the holdclass. I’ve alsousedan aggregate (composite)classthatmodelsabookinthe
Loan class.

10. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 10 of 17
12. Use Case Diagram
Add New Member
Add New Employee
Add New Equipment
Add New Fitness Class

11. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 11 of 17
13. Class Descriptions
In the person class the variables include String name, int age and char gender. Each variable has
setters and getters.
In the member class inherences variables from the person class and also has the variable include
int memberID, String memberAddress, int memberPhoneNo, String memberEmail, String
memberType, double membershipPrice, String startDate, String finishDate and also int
nextMemID. Each variable has setters and getters.
In the employee class inherences variables from the person class and also has the variables
include int employeeID, String employeeAddress and int employeePhoneNo. Each variable has
setters and getters.
In the equipment class the variables include String equipmentName, String
equipmentDescription and also double equipmentSize. Each variable has setters and getters.
In the fitnessClasses class the variables include String className, String activity, int
classCapacity, double price, double duration and also int numberOfClasses. Each variable has
setters and getters.

12. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 12 of 17
14. USER GUIDE:
14.1.Load Data
Once the user hasopenedthe Interface theymayLoadthe data whichhas data storedon the system
whichwassaved by a pervioususer.
The user beginsmyclickingon
 UPLOAD DETAILS
 LOAD DETAILS
14.2.Member
14.2.1. Member Details
Once details are successfully retrieved the administrator may now begin add a member, remove a
member, display all members, search a member and sort members by name on the system.
 Click on the Member Icon
 Click “ADD MEMBER”
 Click “REMOVE MEMBER”
 Click “DISPLAY ALL MEMBERS”
 Click “SEARCH A MEMBER”
 Click “SORT MEMBERS BY NAME”

13. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 13 of 17
14.3.Employee
14.3.1. Employee Details
Once details are successfully retrieved the administrator may now begin add an employee,
remove an employee, display all employee, search a employee and sort employee by name on the
system.
 Click on the Employee Icon
 Click “ADD EMPLOYEE”
 Click “REMOVE EMPLOYEE”
 Click “DISPLAY ALL EMPLOYEE”
 Click “SEARCH AN EMPLOYEE”
 Click “SORT EMPLOYEES BY NAME”

14. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 14 of 17
14.4.Equipment
14.4.1. Equipment Details
Once details are successfully retrieved the administrator may now begin add equipment, remove
an equipment, display all equipment, search equipment and sort equipment by name on the
system.
 Click on the Equipment Icon
 Click “ADD EQUIPMENT”
 Click “REMOVE EQUIPMENT”
 Click “DISPLAY ALL EQUIPMENT”
 Click “SEARCH AN EQUIPMENT”
 Click “SORT EQUIPMENT BY NAME”

15. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 15 of 17
14.5.Fitness Classes
14.5.1. Fitness Classes Details
Once details are successfully retrieved the administrator may now begin add a new class, remove
a fitness class, display all classes, search classes and sort classes by name on the system.
 Click on the Fitness Class Icon
 Click “ADD A NEW CLASS”
 Click “REMOVE FITNESS CLASS”
 Click “DISPLAY ALL CLASSES”
 Click “SEARCH A CLASS”
 Click “SORT CLASSES BY NAME”

16. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 16 of 17
14.6.Adding Members to Classes
Once details are successfully retrieved the administrator may now begin add a new member to a
class and display all class member on the system.
 Click on the Class Icon
 Click “ADD A MEMBER TO CLASS”
 Click “DISPLAY ALL CLASS MEMBERS”

17. GYM Management System Accelerated Object Oriented Programming 2 DavidO’ Connort00130990
Page 17 of 17
15. Conclusion
The gym system works efficiently as a gym management system. It is robust and will not crash
while running in the event of user input error or user misuse. The system could be expanded to
cater for large gyms. There is no limit to the amount of information that this system can hold.
This system holds information about gym members, employees, equipment and also fitness
classes. Information can also be removed at any time from the system. This project has proven to
be a worthwhile exercise in software development from inception to planning and execution of
the code.
A demonstration of this project can be seen on YouTube using the following link:
https://www.youtube.com/watch?v=EZzUh3AsdwM