Computer Science 340
Programming Languages

Fall 2019, Siena College

Home     Syllabus     Schedule

Agenda

• Announcements
  • Language Project [HTML] [PDF]
    • next deadline is progress reports on Monday
  • Wrap up Lab 4: Callback Functions in C by Sunday night
• Parameterized ADTs
• Namespace Encapsulation
• Object-Oriented Programming implementation issues
• In-class exercise, related to /home/cs340/examples/cpplist, for 15 lab/assignment points. Answer questions in the README.md of your repository. You may hand in a paper copy of the memory diagram or upload a scan/photograph to your repository.
  • What happens if the friend directive is removed from the SLLNode class? Why?
  • This problem could be avoided by making the SLLNode data members public. Why would this be problematic?
  • Draw a memory diagram showing the call stack and heap as they exist inside of each call to the SLL::print method.
  • When are methods called with the . syntax and when with the -> syntax and why?
  • When is the destructor for each SLL called and why?
  • The destructor for SLL is incomplete. Modify it so it frees all memory.

Terminology

• parameterized ADTs
• autoboxing/autounboxing
• erasure
• namespace encapsulation
• object-oriented programming (OOP) paradigm
• inheritance
• classes
• objects
• derived class/subclass
• parent class/superclass
• extends
• instance variables
• class variables
• instance methods
• class methods
• messages

Examples

• javaerasure
• cpplist

Links

• Type Erasure in the Oracle Java Tutorials