Overview of “Theory Exam 1”

Exam 1 is designed to explore the foundational concepts of C++ and is worth 70 points.

Exam 1 contains only multiple choice or short answer problems. You will not be required to write any standalone code outside of the PrairieLearn web interface.

Topics Covered

Topics from lecture:

• Classes in C++
  • Public members functions
  • Private helper functions
  • Private variables
  • Constructors
  • Automatic default constructor
• Namespaces in C++
  • Creating a class that is part of a namespace (eg: Sphere is part of the cs225 namespace)
  • Using a class from a namespace (eg: cs225::Sphere)
  • Purpose and usefulness of namespaces
• Variables
  • Four properties: name, type, location (in memory), and value
  • Primitive vs. user-defined
• Memory
  • Indirection in C++:
  • Reference variables
  • Pointers
  • Differences and trade-offs between each type
  • Stack memory
  • Heap memory
• Functions: Calling and Returning
  • Pass by value, by reference, and by pointer
  • Return by value, by reference, and by pointer

Assignments referenced:

• lab_intro
• lab_debug
• MP1