1.

Which design pattern ensures that only one object of particular class gets created?(a) Singleton pattern(b) Filter pattern(c) State pattern(d) Bridge pattern

Answer» Right answer is (a) Singleton pattern

To elaborate: Singleton pattern involves a single class which is responsible to create an object while making sure that only one object gets created. This class provides a way to access the only object which can be accessed directly without need to instantiate another object of the same class.


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