Lecture Notes on 14 Sep 2020

* How do we know that objects intersect? This is how we will
  define the intersection of two object A and B:
  - A is NOT strictly inside B AND B is NOT strictly inside A
    AND A is NOT strictly outside B
  There are many definitions of intersection; we will go with 
  the above definition.

Q1. In the following pairs of classes, identify the superclass 
    and the subclass:
* Employee, Manager
* Polygon, Triangle
* GraduateStudent, Student
* Person, Student
* Employee, GraduateStudent
* BankAccount, CheckingAccount
* Vehicle, Car
* Vehicle, Minivan
* Car, Minivan
* Truck, Vehicle

Q2. Draw an inheritance diagram that shows the inheritance 
    relationships between the classes
* Person
* Employee
* Student
* Instructor
* Classroom
* object

Q3. In an object-oriented traffic simulation system, we have 
    the following classes. Draw an inheritance diagram that 
    shows the relationships between these classes
* Vehicle
* Car
* Truck
* Sedan
* Coupe
* PickupTruck
* SportUtilityVehicle
* Minivan
* Bicycle
* Motorcycle

Q4. What inheritance relationships would you establish among 
    the following classes:
* Student
* Professor
* TeachingAssistant
* Employee
* Secretary
* DepartmentChair
* Janitor
* SeminarSpeaker
* Person
* Course
* Seminar
* Lecture
* ComputerLab