[Solved] What are the consequences of applying the GOF Singleton pattern?

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Q.	What are the consequences of applying the GOF Singleton pattern?
A.	it introduces thread safety issue when the singleton instance is instantiated on demand
B.	the client code can creates multiple instances at run time
C.	it reduces of the class hierarchy as compared to the other factory design patterns
D.	it makes it easier for a certain family of objects to work together
Answer» A. it introduces thread safety issue when the singleton instance is instantiated on demand

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