Final Exam, CSCI 330, Spring 2021

• You may use books, notes and other non-human references. You may not interact with any other person when answering these questions.
• Please answer each question thoughtfully and carefully. I expect your answers to demonstration participation in this class.
• The weight for each question is given.
• Please use a word processor to answer the questions.
  • Please answer the questions in black.
  • Do not use red, anything in red was written by the instructor.
• If you wish, you may answer any coding questions using a text editor.
  • Place all answers in a single file.
  • Label each answer clearly with the question number.
• Proper use of terminology will be graded.
• The test is due at the end of class.
  • Submission instructions are at the end of the test.
  • Submissions should be done through the D2L assignment folder Final Exam
  • If you have problems submitting the test, please contact your instructor.
  • If you miss the dropbox deadline, email your solution to your instructor.
• If you have questions, please communicate with your instructor via email.

1. Hierarchies
   1. [2 points] What relationship does a hierarchy model?
   2. [3 points] Given the relationship modeled by a hierarchy, describe why a member is added to the base class.
   3. [3 points] Given the relationship modeled by a hierarchy, describe why a member is added to a derived class.
   4. [2 points] What is the purpose of the c++ keyword override in a hierarchy?
2. Virtual Functions
   1. [2 points] Why would a programmer declare a function to be virtual?
   2. [2 points] What is a pure virtual function?
   3. [2 points] How would a programmer declare a pure virtual function?
   4. [2 points] Why would a programmer declare a pure virtual function?
   5. [2 points] What member function should always be declared virtual?
3. Polymorphism
   1. [4 points] What does it mean for a set of objects to be polymorphic?
   2. [2 points] How do you make a hierarchy polymorphic in c++?
   3. [2 points] What is the purpose of the reinterpret_cast in c++?
   4. [2 points] What is the behavior of the reinterpret_cast in c++?
4. Multiple Inheritance
   1. [4 points] What is the diamond problem and when does it occur?
   2. [4 points] What issues are caused by the diamond problem?
   3. [2 points] How does c++ overcome issues caused by the diamond problem?
5. Misc
   1. [3 points] Why would a programmer create a templated class?
   2. [3 points] Give a case where member data must be initialized using a ctor initializer.
   3. [4 points] What is the difference between new and malloc?

Submission Instructions

• Submit your test and the source code for the program to the D2L assignment folder Final by 10:00
• If you miss this deadline, you can submit your test by email to dbennett@edinboro.edu. Depending on the circumstances, there may be a 5% penalty per minute applied for email submissions.