CPSC 421 OOP UML Multiplicity

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Across
  1. 3. To tell the difference between a std::string that does not have a value versus a std::string with an empty string, we could use a ____, but it is not a great solution.
  2. 4. A char* can have ____ states
  3. 6. Multiplicity in UML primarily refers to _____ in a C++ class
  4. 7. Multivalued multiplicities are ______ in C++
  5. 8. std::optional can be used on any ____ type (non-pointer)
  6. 10. A std::string can have ____ states
  7. 12. Both multiplicities [1..*] and [*] are ______
  8. 13. The std::optional allows for ____ loading/allocation
  9. 14. A solution introduced in c++17 is ______
  10. 15. The std::optional completely replaces using _____ for optional single value attributes
  11. 16. One use case for std::optional is for an _____ return
Down
  1. 1. Both multiplicities [1] and [1..*] are ______
  2. 2. How we can reset a std::optional back to an empty state
  3. 5. Both multiplicities [1] and [0..1] are ____ ____
  4. 9. The null state of char* has the value _____
  5. 11. Both multiplicities [0..1] and [0..*] are ______