a. Interface definitions does not have implementation
b. Interfaces must be declared as public
c. Interface does not have constructors
d. None of the above
b. Interfaces must be declared as public.
Interfaces have abstract methods and members whose
implementation is done in the derived class. By default all the methods in an Interface are public, so there is no need to explicitly use the public keyword with them.
a) lib b) package c) getlib d) import Answer d) import
a. ResultSet b. DriverManager c. Statement d. Connection Answer: b. DriverManager Explanation: DriverManager is a class that acts as an interface between users and Drivers. It
a) True b) False Answer b) False Explanation: A subtype is something that is substituted for and behaves as its parent type. All subclass may
i) It is used as its fundamental building block ii) Similar objects are classified using a concept of class iii) Polymorphism and abstraction are not
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