I've already built the biggest part for my MSc thesis project because of you... Don't know how grateful I am for your contributions, not only for me but also to the developer community.
I very much appreciate and enjoy your content and the way you teach. I’ve been learning a lot from you and just wanted to say thanks for doing what you do 🙏
It's a fine content but he still always acts religious in a very annoying way, it would be better if he keeps his beliefs to himself and keep it professional
@@moathdw910 when you grow up you'll realize a few things. First - just because someone is religious, doesn't mean they're acting religious. You're angry at something that literally isn't referenced or talked about in any of his videos. Just because he wears traditional clothing? Man - people still have a long way to go. Second - even if he did bring his religion into this, it's a good thing to get different perspectives from different people. Don't be so afraid of things that are different from you and maybe one day you'll be able learn all the world is willing to teach you.
@@moathdw910 It is authentic way of professionalism. Change your vision, saying hello in Arabic does not make the content religious. I have never heard of anything about "create" action as a religious way. he also says "Voila!" which does not makes him a francophone
Could you do the same video but with interfaces? I feel like they have become more complex with each Java release. You seem to have such a great understanding of it
Very very clear explanation!,with real example, yes, thats true, you will never see Dogs, Cats,Squares, rectangles, foo and bar in production!, you will see business procesess like this!.. Thank you very much for your useful video! 👍👍
Thank you for your explanation I have one remark about the method parse i think you can imporve it by avoiding boilerplate code and leagcy classes to read file and you can use Files.lines and It will return a stream and you can do filter on this stream and create another method to test the regex and apply this method on filter method .
Hi @Amigoscode, I have been following your content for quite long. It's really incredible work you are doing to help all of us. Thank you very much. And I always face challenge in understanding the existing code (mostly I work on Java) when I am moving across new projects. I really appreciate if you can prepare a video on how to understand existing code base of JAVA. Thank you once again.
I was so annoyed at being taught complex design patters and design principles with squares, circles, apples, bananas, etc. Thank you for this very helpful example!
Wouldn't it be better to have default implementation of clean function (in this case only return input) in abstract class and then override it in child classes only where you want new functionality?
The very clear explanation. Thank you. Even we can have default implementation for method clear in abstract class. That can help us to modify the code much easier when the method is just needed to be implemented by some classes. Thank you so much for your useful videos.
Hello sir. Please someone recommended your channel for me. Please can you show me how to start with jsp from downloading intellij to running a first program. Thanks for reading
Instead of making the clean() abstract, would it be better to implement it to return unmodified value. That way existing classes don't need to be modified with clean if it's not needed?
Salam aleykoum amigoscode, hi everybody Can you make a video of what do you think about remote work. What is your experiences, how did you live the COVID time working from home? What are the pros and cons of remote working? Thank you and big up !
Since you are producing/exporting reports, you could implement the visitor behavioural pattern on the abstract class and implement a visitor interface that accepts an export feature
Depends on your situation. If you would use interfaces in this specific example you can not have a common parse() method and you will have to copy the same code in the parse method of every implementation of the interface. And this exceeds the DRY (dont repeat yourself) principle
@@noss403 Its true thx for noticing, I forgot that's possible. Then i guess it's the best to use abstract classes in this case cause interfaces are more generic in what they promise to do.
as usual, your example is just Hello World *_Can show examples Spring+Abstract class + Generics_* I think it will be more useful Thank you for your effort
Good content as always, Nelson! Just one question, is it better to make the non abstract methods become static on the abstract class? So that we dont need to instantiate an object. Example, instead of new NumberExtractorReport().prepareAndSendReport(path) We could do this: NumberExtractorReport.prepareAndSendReport(path)
Only subclass if the phrase "is type of" is true. Also, keep this in your head whenever you are designing..,.. "prefer composition over inheritance" and you'll not go far wrong. Also remember a class should only do ONE thing and do that thing well. As soon as you start mixing concerns, your class becomes needlessly complex and breaks the Single Responsibility Principle.
No. You needed to override the parent method in the EmailExtractorReport class and wrap the parent method in your new clean method. You yourself say that classes should be open for extension but closed for modification.
Please please, guid me which tech skill i should learn so I land a job in halal compony. There are so many haram stuff in software development and many tech industry. Please please guid me. ❤️🙂
what's the difference between Abstract classes and Interface with default methods. Anyone? You can have common functionality on both abstract class and interface.
You can't implement methods on interfaces, so in his example, he would have duplicate code on both NumberExtractor and NumberExtractor with the parse method.
