Quiz 1Z0-804: Java SE 7 Programmer II
Which three statements concerning the OO concepts "is-a" and "has-a" are true?
Which two compile?
Which is a key aspect of composition?
What two changes should you make to apply the DAO pattern to this class?
Which two are true about Singletons?
What are two differences between Callable and Runnable?
Which two properly implement a Singleton pattern?
Which two statements concerning the OO concepts "IS-A" and "HAS-A" are true?
What is the result?
Which statement declares a generic class?