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JAVA CERTIFICATION QUESTION: Controlling the number of instances of a class
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?
=>Which is the best approach: singletons, sealed classes, abstract classes, final classes, or enums?
·
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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