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Intermediate Quizzes – Java Inheritance

The following Java exercise(s) are designed for intermediate level programmers. If the level is too hard, then I recommend to select an easier one or you might consider reading my article about this topic, which offers a theoretical explanation including more exercises. Read More: Java Inheritance.

Article: Java inheritance
Quizzes: Beginner  Intermediate  Advanced 


Quiz 1: Inheritance, accessing constructors of super classes?

What happens when the following program is compiled and run?

public class SuperB {

	protected int b = 3;

	public SuperB() {
		b += 3;
		System.out.print("-b" + b);
	public SuperB(int i) {
		b += 2;
		System.out.print("-b" + b);

public class SuperA extends SuperB {

	int b = 4;

	public SuperA() {
		b += 1;

public class MySub extends SuperA {

	public MySub() {
		b += 2;
		System.out.print("-b" + b);
	public static void main(String[] args){
		MySub mySub = new MySub();

Select the correct answer.

Please, leave your questions, feedback and suggestions in the comments below! If you need more explanation by any of the answers, just let me know to update it for you! offers a practical method to learn and improve your Java skills. It avoids unnecessary long boring theoretical explanations, but it uses many exercises and quizzes. The author of Megisoft is Sar Maroof who has more than a decade of experience with web development mainly with Java, MySql, HTML and more..
Article: Java inheritance
Quizzes: Beginner  Intermediate  Advanced 

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Click Here For Info about: Sar Maroof's New Java Book
Author: Sar Maroof
More than a decade of experience with developing web applications mainly with Java.
Sun Certified JSP as well as EJB
CIW Certified Internet Webmaster - Mind IT
Applied Science in Physics HBO Amsterdam
Bachellor Science in Physics at Basra university.
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1 Comment

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  1. Hot damn, loiknog pretty useful buddy.

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