Homework 5

~/2020_S19/wk5/hw5.cpp

The purpose of this assignment is to practice aggregation, inheritance, and polymorphism. You will use the given Person, Faculty, and Student classes and alter the definitions to add polymorphic behavior. In addition, you will write an Abstract Base Class called 'CourseInterface' (parent), a derived 'Course' class (child), and two derived-derived classes called 'Lecture' and 'Lab' (grand children). The description of the classes are listed below. Function main will also be given to you with a ClassInfo class.

CourseInterface (Abstract Base Class)

This class will contain pure virtual member functions for the derived class's public interface. In addition to protected member variables: a statically sized cstring for 'title' and 'type', a Faculty object 'lecturer', a PersonStudent pointer 'roster', and an integer for 'count' number of students enrolled, and and integer for 'capacity'.

• CourseInterface() - Default constructor: set the first character member variable 'Title' to NULL. Allocate CLASSROOM_CAP Student objects to the Student pointer (Use a defined constant and set CLASSROOM_CAP to 35). Set count and capacity to 0.
• CourseInterface(const CourseInterface&) - Copy constructor: copy the static member variables. Also, if the passed object's roster is not NULL, allocate a new Student array to 'roster', traverse and copy passed object's roster array.
• void operator=(const CourseInterface&) - Overloaded Assignment Operator: if the address of the passed object is the same, return. Otherwise, if 'roster' is NOT NULL, deallocate the 'roster' array and set to NULL. Copy the static member variables. Also, if the passed object's roster is not NULL, allocate a new Student array to 'roster', traverse and copy passed object's roster array.
• ~CourseInterface() - Destructor: deallocate the Student array and set the Student pointer to NULL.
• void setTitle(const char*) - copy the passed argument to set the 'title' member variable.
• void setType(const char*) - copy the passed argument to set the 'type' member variable.
• const char* getTitle() const - return the 'title' member variable
• const int getCount() const - return 'count'.
• const char* getType() const { return 'type'.
• void inputCourse() = 0 - Pure virtual member function. To be defined in derived class. This will act as a driver function to input the course information (set title, set Faculty, allocate Student array, set each Student).
• void printCourse() = 0 - Pure virtual member function. To be defined in derived class. This will act as a driver function to output the course information (print course title, type, print Faculty object, print class roster).

Course (Derived)

This class will inherit from CourseInterface publically.

• Course() - default constructor: invoke parent default constructor.
• Course(const Course&) - copy constructor: invoke and pass to parent copy constructor.
• void operator=(const Course&) - Overloaded Assignment Operator: call the parent's version of the overloaded operator with passed Course argument.
• ~Course() - destructor: empty definition.
• void inputCourse() - In this function you will prompt the user for the course title and set the title with the corresponding mutator function. Call the Faculty member function 'inputPerson' to set the Faculty object. Prompt the user for a positive number that is less than CLASSROOM_CAP and validate. Traverse the defautly allocated 'roster' array and call the Student member function 'inputPerson' for each Student object within the array.
• void printCourse() - With nicely fomatted output, print the course title, type, lecturer, and each student within the 'roster' array.

Lecture (Derived-Derived)

This class will inherit from Course publically

• Lecture() - default constructor: invoke parent default constructor and call the mutator function for 'type' and pass it string literal "Lecture".
• Lecture(const Lecture&) - copy constructor: invoke and pass to parent copy constructor and call the mutator function for 'type' and pass it string literal "Lecture".
• ~Lecture() - destructor: empty definition.
• void operator=(const Course&) - Overloaded Assignment Operator: call the parent's version of the overloaded operator with passed Lecture object Argument. Also, call the mutator function for 'type' and pass it string literal "Lecture".

Lab (Derived-Derived)

This class will inherit from Course publically, and will contain one Faculty member object 'labInstructor'.

• Lab() - default constructor: invoke parent default constructor. Assign the Faculty member object 'labInstructor' to be the Course's 'lecturer' member object by default. Also, call the mutator function for 'type' and pass it string literal "Lab".
• Lab(const Lab&) - copy constructor: invoke and pass to parent copy constructor. Assign the Faculty member object 'labInstructor' to be the passed object's member. Also, call the mutator function for 'type' and pass it string literal "Lab".
• ~Lab() - destructor: empty definition.
• void operator=(const Course&) - Overloaded Assignment Operator: call the parent's version of the overloaded operator with passed Lab object Argument. Also, call the mutator function for 'type' and pass it string literal "Lab".
• void inputCourse() - overridden function: call the member function 'inputPerson' of the member object 'labInstructor'. Then call the parent's version of inputCourse.
• void printCourse() - overridden function: For this version of printCourse, you will print the course title, type, lab instructor, and each student object in the roster array.
• void inputLabFaculty() - this function will call the member function 'inputPerson' of the member object 'labInstructor'.

CourseInfo

This class definition is given to you. Aggregation is the instance of a class within another class ("has a" relationship). A CourseInfo object will contain an instance of a Lecture and a Lab object.

~/2020_S19/wk5/hw5.cpp
Be sure that the directory name and file name are exact!