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Advanced Quizzes – Java Constructors

The following Java exercise(s) are designed for advanced level developers. 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 Constructors

Article: Java constructors
Quizzes: Beginner  Intermediate  Advanced 

constructors-red

Quiz 1: Using the keyword this and Java constructors.

What is written to the standard output as the result of executing the following code?

public class MyClass {

	int x = 2;
	int y = 5;

	String s = "4";
	MyClass() {
		x += 3;
		y += 1;
		this.s = "1";
	}
	MyClass(int i, int i2) {
		this();
		this.x += i;
		this.y -= i2;
		System.out.print("-x" + x + "-x" + y);
	}
	MyClass(int i, int i2, String s) {
		this(i,i2);
		this.x -= i;
		this.y += i2;
		s = this.s;
		System.out.print("-x" + s + "-x" + x + "-x" + y);
	}
	public static void main(String[] args){
		MyClass mc1 = new MyClass(4,3,"2");
	}
}

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!

Megisoft.com 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 constructors
Quizzes: Beginner  Intermediate  Advanced 

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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. That’s a nicely made answer to a chlenalging question

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