Thank you for your contribution @lapulga.
After reviewing your contribution we suggest you make the following improvements in your tutorials:
We suggest you write comments in your code. It is important for users who are reading your tutorial to understand your code well.
Your tutorial is quite short for a good tutorial. We recommend you aim for capturing at least 2-3 concepts.
The tutorial is too basic and there are already some tutorials on how to encapsulate fields refactoring on netbeans. See this link
Please indent your code. Read this article, explains why the importance of the indented code.
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Thank you for your review, @portugalcoin!
So far this week you've reviewed 6 contributions. Keep up the good work!