Java Basics Quiz5

Welcome to Selenium Basics Quiz Series.

This quiz consists of 15 multiple-choice questions.

Keep the following in mind:

Multiple Attempts - You will have multiple attempts for this quiz.
Timing - You will need to complete each of your attempts in one sitting, as you are allotted 7 minutes to complete each attempt.
Answers - You may review your answer-choices and compare them to the correct answers after your final attempt.

To start, click the "Next" button. When finished, click the "Submit Quiz" button

Which of this keyword must be used to inherit a class?

extends

extent

Extends

Super

Which of these is correct way of inheriting class A by class B?

class B inherits class A {}

class B extends A {}

class B extends class A {}

What is not type of inheritance?

Double inheritance

Multiple inheritance

Hierarchical inheritance

Using which of the following, multiple inheritance in Java can be implemented?

Interfaces

Multithreading

Private methods

All classes in Java are inherited from which class?

java.class.inherited

java.class.object

java.lang.Object

If super class and subclass have same variable name, which keyword should be used to use super class?

this

super

upper

Does Java support multiple level inheritance?

True

False

Which of these access specifiers must be used for main() method?

private

public

protected

Which of the following statements are incorrect?

public members of class can be accessed by any code in the program

private members of class can only be accessed by other members of the class

protected members of a class can be inherited by a subclass, and become private members of the subclass

private members of class can be inherited by a subclass, and become protected members in subclass

Which of the following modifier means a particular variable cannot be accessed within the package?

private

public

default

protected

How can a protected modifier be accessed?

accessible only within package

accessible only within the class

accessible within package and outside the package but through inheritance only

accessible by all

All the variables of interface should be?

default and final

public, static and final

default and static

protect, static and final

What is true of final class?

Final class cause compilation failure

Final class cannot be inherited

Final class cause runtime failure

Final class cannot be instantiated

Can a class be declared with a protected modifier.

True

False

Which is the modifier when there is none mentioned explicitly?

protected

default

public

private

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