java4

Which of these keyword is used to define interfaces in Java?

• interface
• INTF
• INTERFACE
• None of these

Which of these can be used to fully abstract a class from its implementation?

• Objects
• Packages
• Interfaces
• None of these

Which of these keyword is used by a class to use an interface defined previously?

• import
• extends
• implements
• IMPLEMENTS

An interface in Java is like a 100%

• abstract class
• public class
• inner class
• anonymous class

All interface variables are _____ by default in Java

• public
• final
• public & final
• None of these

All interface methods are _____ by default in Java

• public
• abstract method
• public & abstract
• None of these

Which of these keywords is used to define a package in Java?

• pkg
• Pkg
• Package
• package

Which of these access specifiers can be used for a class so that its members can be acceessed by a different class in the different package?

• public
• protected
• private
• None of these

Which of the following is the correct way of importing an entire package?

• import pkg.
• import Pkg.
• import pkg.*;
• import *;

Which of the following package stores all the standard java classes?

• lang
• java
• util
• io