Q. Which of the following is the correct way of implementing an interface A by class B?

View solution

Q. All methods must be implemented of an interface.

View solution

Q. What type of variable can be defined in an interface?

View solution

Q. What does an interface contain?

View solution

Q. What type of methods an interface contain by default?

View solution

Q. What will happen if we provide concrete implementation of method in interface?

View solution

Q. What happens when a constructor is defined for an interface?

View solution

Q. What happens when we access the same variable defined in two interfaces implemented by the same class?

View solution

Q. Can “abstract” keyword be used with constructor, Initialization Block, Instance Initialization and Static Initialization Block.

View solution

Q. Which of these package is used for graphical user interface?

View solution

Q. Which of this package is used for analyzing code during run-time?

View solution

Q. Which of this package is used for handling security related issues in a program?

View solution

Q. Which of these class allows us to get real time data about private and protected member of a class?

View solution

Q. Which of this package is used for invoking a method remotely?

View solution

Q. Which of these type parameters is used for a generic class to return and accept any type of object?

View solution

Q. Which of these type parameters is used for a generic class to return and accept a number?

View solution

Q. Which of these is an correct way of defining generic class?

View solution

Q. Which of the following is an incorrect statement regarding the use of generics and parameterized types in Java?

View solution

Q. Which of the following reference types cannot be generic?

View solution

Q. A java interface can contain _______.

View solution