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Core Java MCQs

A class implementing a singleton pattern has...

no public constructors, a public static factory method, a static instance variable.

public constructors instead of a static factory method and a static instance variable.

no public constructors, a private static factory method, a static instance variable.

no public constructors and static factory method and a non-static instance variables.

Answer

Correct Answer: no public constructors, a public static factory method, a static instance variable.

Explanation:

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