Oracle
1Z0-809 · Question #16
1Z0-809 Question #16: Real Exam Question with Answer & Explanation
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Question
You want to create a singleton class by using the Singleton design pattern.
Which two statements enforce the singleton nature of the design?
Options
- AMake the class static.
- BMake the constructor private.
- COverride equals() and hashCode() methods of the java.lang.Object class.
- DUse a static reference to point to the single instance.
- EImplement the Serializable interface.
- FMake the single instance created static and final.
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