Give some features of interface?
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Can you call a constructor within a constructor?
1.IN CASE OF DYNAMIC METHOD DISPATCH WHY WE USE REFERENCE VARIABLE,WE CAN USE THE DIFFERENT DEFINED OBJECT DIRECTLY TO ACCESS THE DATA MEMBER AND MEMBER FUNCTION OF THAT RESPECTIVE CLASS?WHAT IS THE MAIN FUNCTION OF "REFERENCE VARIABLE" HERE?
Is empty set an element of empty set?
Can I declare class as static or private?
What is the difference between Stream Reader and Stream Writer?
What method is used to specify a container's layout in java programming?
What is an error in java?
how come we know the object is no more used in the class?
Which sorting is used in arrays sort in java?
Is a class subclass of itself?
What is the purpose of having the concept of overloading?
Does constructor be static?