What happens if a constructor is declared private?
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Why Set interface contains unique elements, what internally implemented for this so that it contains unique elements?
Explain the difference between an Interface and an Abstract class?
How can we create a synchronized collection from given collection?
Can we have multiple classes in single file ?
What is a variable analysis?
Marker interface means , interface which has no methods.Then what is the necessity of its usage.I read "it tells the compiler that it should be treated differently ". "It is used to store state of an object". But still am not clear.Please explain clearly.
What is a lock or purpose of locks in java?
What is the difference between a static and a non-static inner class in java programming?
What is difference between length and length() method in java ?
How many types of syncronization?
Does substring create a new object?
Is java hashset ordered?