Explain the correct answer of a challenge

Question

Please, I would like to understand what I wrong in a challenge... Not only know the correct answer. Thank you

Answer 1

Stefano B

You have two integers (lets ignore protected because it has no effect on the output) int x and int y.
Now you create an object t. But nothing more. Means x and y are 0. So if you print t.x + t.y then you got 0.

Test t = new Test();
t.x = 2;
t.y = 5;
System.out.println(t.x + t.y);
//output 7

Hope this helps.
Here is a link where the keywords public, private, protected are explained.
https://stackoverflow.com/questions/215497/what-is-the-difference-between-public-protected-package-private-and-private-in

Answer 2

Stefano B after the challenge you can scroll down and click on the *show correct answer* to see the questions you got wrong and right.

Answer 3

Here is a code where you can see it:

https://code.sololearn.com/cU0ywCH5dPIN/?ref=app

Answer 4

Let me call a buddy of mine who's an expert in Java.
Denise Roßberg

Answer 5

Thank you so much Diego

Answer 6

You can ask for help in this section. Include the question and what you don't understand.

Answer 7

Ok thank you. Can I post a screenshoot?

Answer 8

Yes, and don't forget to specify the programming language.

Answer 9

In java, the question was to find output of this code:

Class Test{
protected int x, y;
}
Class main{
public static void main(String args[]) {
Test t=new Test();
System.out.println(t.x + t.y);
}
}

Output: 0

Answer 10

Koder King🐱 yes I know how to see correct answer but sometime the question is: why???
Maybe very good if the answer are more than only a number.

Answer 11

Denise Roßberg thank you, very exaustive.

Answer 12

Stefano B Your welcome. :)