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COMP 2044 — Assignment #1

Goal
You will be working with an existing event management program throughout the term. The base code
that you must start with is posted in cuLearn. For this assignment, you will modify the base code to
improve the design and add new entity classes.
Learning Outcomes
With this assignment, you will:
• understand an existing object-oriented program
• add code to an existing code base with simple C++ classes
• work with dynamically allocated memory and pointers
Instructions
1. Understand the base code:
• Read and make sure that you thoroughly understand the existing event management program
provided in the base code.
• Build the program and run it several times with different input. Use pipelining for standard input
redirection from the given in.txt file to test the program, as you did in the tutorials. Add your own
data to this file to test the program more thoroughly.
2. Modify the Date class
You will modify the Date class as follows, reusing existing functions everywhere appropriate:
• add a data member that is a Time object; the Time class is provided as part of the base code
◦ modify the constructor and set() member function accordingly, so that they initialize the hours
and minutes from parameters; the seconds can be set to zero
◦ modify the print() member function to print out the time with the date
• add a lessThan() member function that compares the given parameter with the Date object on
which the function is called; comparing the date must involve comparing the time as well; the
function will have the following prototype:
bool lessThan(Date&)
3. Implement the Event class
You will create a new class called Event. This class will correspond to a new event that will be managed
in the program. The Event class will contain the following:
• a data member for the event name, which can be a string
• a data member that’s a Date object to represent the date of the event
• a constructor to initialize all contained data members
• a print() member function to print out the event details
• getter and setter functions for the event date
COMP 2404 — Fall 2018 Assignment #1 1/4
4. Implement the Calendar class
You will create a new class called Calendar. This class will contain all the events in your personal
calendar. The Calendar class will contain the following:
• a data member for the calendar name, which can be a string; in future work, we could be managing
several calendars, for example a work calendar and a school calendar
• a collection of events, represented as an array of Event pointers
• the number of events currently in the calendar
• a constructor
• a destructor to clean up the dynamically allocated Event objects
• an add(Event*) member function that inserts a new event into the array so that it stays in ascending
order by date; this will require shifting some events towards the back of the array to make room for the
new one
◦ the events will be compared using the Date class’s lessThan() member function
• a print() member function that prints out all the events in the array to the screen
5. Modify the main() function
You will modify the program so that the main() function:
• doesn’t declare a date array anymore; instead, it will declare a Calendar object
• uses the Calendar object and its functions, instead of manipulating the dates or the array directly
• prompts the user to enter all required event information, including the event name and time
• dynamically allocates an Event object once the user enters the information for an event, and adds
the event to the calendar using functions implemented in previous steps
6. Test the program
• You will modify the in.txt file so that it provides sufficient datafill for a minimum of 15 events. The
ordering of event dates and times in the file must be such that the program is thoroughly tested. Do
not order the events in the file already in ascending order!
• Check that the event information and the order is correct when the calendar is printed out at the end
of the program.
• Make sure that all dynamically allocated memory is explicitly deallocated when it is no longer used.
Use valgrind to check for memory leaks.
Constraints
• your program must follow the existing design and organization of the base code
• do not use any classes, containers, or algorithms from the C++ standard template library (STL)
• do not use any global variables
• do not use structs; use classes instead
• objects must always be passed by reference, not by value
• your classes must be thoroughly documented in every class definition
• all basic error checking must be performed
• existing functions must be reused everywhere possible
COMP 2404 — Fall 2018 Assignment #1 2/4
Submission
You will submit in cuLearn, before the due date and time, the following:
• one tar or zip file that includes:
◦ all source, header, and data files, including the code provided
◦ a Makefile
◦ a readme file that includes:
▪ a preamble (program and revision authors, purpose, list of source/header/data files)
▪ compilation. launching, and operating instructions
Grading (out of 100)
Marking components:
• 15 marks: correct modifications to Date class
5 marks: correct definition and initialization/setting of Time object
7 marks: correct implementation of lessThan() function
3 marks: correct implementation of print() function
• 15 marks: correct implementation of Event class
5 marks: correct definition and initialization of event name
5 marks: correct definition and initialization/setting of Date object
5 marks: correct implementation of print() function
• 45 marks: correct implementation of Calendar class
3 marks: correct definition and initialization of calendar name
7 marks: correct definition and initialization of Event array
10 marks: correct implementation of destructor
20 marks: correct implementation of add() function
5 marks: correct implementation of print() function
• 25 marks: correct modifications to main() function
5 marks: correct prompting for event information
10 marks: create creation and initialization of Event object
5 marks: correct addition to calendar
5 marks: correct printing of calendar
Execution requirements:
• all marking components must be called, and they must execute successfully to receive marks
• all data handled must be printed to the screen for marking components to receive marks
Deductions:
• Packaging errors:
◦ 10 marks for missing Makefile
◦ 5 marks for a missing readme
◦ 10 marks for consistent failure to correctly separate code into source and header files
◦ 10 marks for bad style or missing documentation
COMP 2404 — Fall 2018 Assignment #1 3/4
• Major programming and design errors:
◦ 50% of a marking component that uses global variables, or structs
◦ 50% of a marking component that consistently fails to use correct design principles
◦ 50% of a marking component that uses prohibited library classes or functions
◦ 50% of a marking component where unauthorized changes have been made to the base code
• Execution errors:
◦ 100% of a marking component that cannot be tested because it doesn’t compile or execute in VM
◦ 100% of a marking component that cannot be tested because the feature is not used in the code
◦ 100% of a marking component that cannot be tested because data cannot be printed to the screen
COMP 2404 — Fall 2018 Assignment #1 4/4

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