JAVA CERTIFICATION QUESTION: Controlling the number of instances of a class

=>Which is the best approach: singletons, sealed classes, abstract classes, final classes, or enums?

July 16, 2022

Which approach best provides for this need? Choose one.

A. Singletons

B. Sealed classes

C. Abstract classes

D. Final classes

E. Enums

#java #certificationquestion #ocp

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