Oracle
1Z0-804 · Question #25
1Z0-804 Question #25: Real Exam Question with Answer & Explanation
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Question
Which two are true about Singletons?
Options
- AA Singleton must implement serializable.
- BA Singleton has only the default constructor.
- CA Singleton implements a factory method.
- DA Singleton improves a class's cohesion.
- ESingletons can be designed to be thread-safe.
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