Why is a singleton bad?
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what is difference between abstract factory and factory design patterns?
What is the purpose of format function?
I have multiple constructors defined in a class. Is it possible to call a constructor from another constructor’s body?
can we have virtual functions in java?
What is difference between module and function?
Why is static used?
Why java is free from garbage values??
The class "Class" is belongs to which package?? a) java.lang b)java.lang.reflect c)java.util d)None
When will we prefer to use set and list in java and why?
What is the final keyword denotes?
can any body body expalin best definitions & best real time exaples for opps concepts.
Is null or empty java?