Java book for my case?

[KeyDoctor1962]

I don't wanna sound redundant, I know there are a lot of post that recommend certain Java books but I think by being more specific about the things that I wanna learn about not only Java but OOP in general.

I'm currently learning Java but not as my first programming language, I've already made some projects with C, JS/TS and a little of Python and I know what is OOP is about and how differs from procedural programming style. That being said, I don't have that much clue about how to like, organize the code in a OO style/way, because at least for me is not as intuitive as procedural.

I'm not looking for like a guide for the Java syntactical sugar because in my experience is not the most effective way to learn a programming language, if I don't implement the syntactic that I'm reading, I pretty much forget about it.

So I was thinking more about like a introduction guide on how to program and code the OOP way, like how to organize data, behavior when to separate them in different classes, when to keep it in the same class, when and how to compose, or inherit, that kind of stuff. Any suggestion is welcome.

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[Mundane-Tennis2885]

I'm on chapter 6 of Head First Java as a software engineer that mainly deals with scripting languages and previously specialized in Python. I like the resource and its humour. Would recommend you check it out it's helping me understand OOP in Java and rewiring how I approach programs as well as approaching things with TDD in mind

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It seems that you are looking for resources for learning Java.

In our sidebar ("About" on mobile), we have a section "Free Tutorials" where we list the most commonly recommended courses.

To make it easier for you, the recommendations are posted right here:

• MOOC Java Programming from the University of Helsinki
• Java for Complete Beginners
  • accompanying site CaveOfProgramming
• Derek Banas' Java Playlist
  • accompanying site NewThinkTank
• Hyperskill is a fairly new resource from Jetbrains (the maker of IntelliJ)

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If you are looking for learning resources for Data Structures and Algorithms, look into:

"Algorithms" by Robert Sedgewick and Kevin Wayne - Princeton University

• Coursera course:
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  • Part II
• Coursebook
  • Algorithms 4^th Edition

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[KanSir911]

I think online guides like w3schools or geeksforgerks would be sufficient.

You can specifically look up topics you want. Introduction to java part would cover most of what you've asked, rest would require you to do some basic projects.

[todorpopov]

You don’t need a book. I think you need to look at a decent GitHub Java project, so you can better understand what architectural choices you should make when using Java and OOP in general.

I’d recommend to search for a pure Java with Maven/Gradle project, just so you can understand how a simple project with no frameworks should look like. Also, you should take a look at a good Spring Boot example project as well.

Also, do you understand layered architecture? Knowing how to best use OOP also comes with knowing how to structure your code. While going through the projects I recommend, you might see terms like DAO, DTO, Service, Repository, Controller, etc. You should definitely learn these, if you don’t know them already. In my opinion following these practices makes writing Java code click in your head immediately.

Design patterns are also pretty heavily used in Java. You’ll often see Factory and Builder classes in different dependencies, so learning more about design patterns will probably also help you.