CSC 3380 FINAL UPDATED Exam Questions and CORRECT Answers
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Course
CSC 3380
Institution
CSC 3380
CSC 3380 FINAL UPDATED Exam
Questions and CORRECT Answers
design patterns - CORRECT ANSWER- generic organizations of classes and their
relationships that can be applied to many different problems
Design patterns provide a ________ ___________. - CORRECT ANSWER- shared
vocabulary
For every ...
CSC 3380 FINAL UPDATED Exam
Questions and CORRECT Answers
design patterns - CORRECT ANSWER- generic organizations of classes and their
relationships that can be applied to many different problems
Design patterns provide a ________ ___________. - CORRECT ANSWER- shared
vocabulary
For every pattern, know the following: - CORRECT ANSWER- • Participants (the classes)
• Collaborations (the arrows and code)
• Applicability (when to use the pattern)
• Consequences
• Implementation
Do design pattern libraries, frameworks, toolkits, or these things make use of patterns? -
CORRECT ANSWER- no
Three design patterns: - CORRECT ANSWER- Creational patterns are for creating objects
Structural patterns are for object connections
Behavioral patterns are for object behavior
Patterns under creational pattern: - CORRECT ANSWER- Abstract Factory
Builder
Factory Method
, Singleton
Multiple methods that create objects with multiple abstract products - CORRECT ANSWER-
abstract factory pattern
when do we use the abstract pattern? - CORRECT ANSWER- When we want to have
multiple replaceable families of products
We want our software to have a ________ - CORRECT ANSWER- GUI
what does it mean to be mutually exclusive ? - CORRECT ANSWER- example: can't store a
windows button on a Mac window
future requests to that concrete factory return the correct concrete products
Why is adding new kinds of products is not easy at all ? - CORRECT ANSWER- requires
change to each concrete factory
allow us to write code that works on different types without requiring inheritance -
CORRECT ANSWER- Generics and templates
Writing a generic class is like writing a regular class, except you use a "fake" type which is
filled in when the generic is used
Advantages of generics? - CORRECT ANSWER- Generics are:
• More convenient (don't need to subclass)
• More type-safe (don't need to down-cast)
• More performant (in some languages, not in Java)
________ __________languages do not support generics, because they don't need them -
CORRECT ANSWER- Duck-typing
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