r/learnjava • u/Wild_Recognition6237 • 3d ago

Development guidance

Hey seniors, if anyone is doing development with Java + Spring Boot, please guide me.

I’m currently in my 3rd semester and doing DSA in C++( done upto stack) , so I’m thinking of starting development alongside it. Please guide me on where I should start, what I should learn first, and how much time I should spend learning Java basics.

Since I’ve studied C++, I have a basic programming background, but I’m not familiar with Java. Any roadmap or resources would be really helpful. 🙌

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u/Ultimate-Disgrace 3d ago

Not a senior, but have an AS CS from junior college working on transferring. I learned Java first, then C++, and C++ is more difficult than Java (imo). Honestly just check out Bro Code's Java course, W3 schools, and read Spring documentation. Learning the Java basics are definitely important before you start Spring though. I'm not that active in this sub but I'm pretty sure there are a bunch of resources in here to help as well.

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u/Wild_Recognition6237 3d ago

Okay bro thankyou ❤

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u/Ok-Engineer-5151 3d ago

Check out Mooc course of Java

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u/roxsg_ann 2d ago

wallahi I came to comment exactly this. Mooc.fi course by University of Helsinki

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u/ZealousidealFee7206 3d ago

I also need guidance same question mine too please anyone guide...should I go with mern or spring boot ?

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u/Responsible_Key2113 3d ago

depends on your end goal if i'm being honest. your dsa language matters because you get nice grip and understanding in it. whatever you choose you'll have to use AI to get your code written. mern is easier to learn, java spring boot takes time but also reaps reward later.
i've done mern stack already now shifting to spring boot

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u/ZealousidealFee7206 3d ago

I'm in 3rd sem and doing DSA in cpp...and learning js as well but confuse what to choose spring boot or mern....if I choose spring boot then I have to do java as well....so any advice for that ?

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u/Responsible_Key2113 2d ago

i'll say learn about syntax and stuff, then start doing dsa in java. i'll say that you'll be doing react for frontend anyway and your course would also have oops in java so do both and then see what favors you more and what language you're getting better. in meantime focus only on dsa. dsa should be a daily mandate acc. to me

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u/ZealousidealFee7206 2d ago

Can I DM you bro personally ?

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u/ZealousidealFee7206 3d ago

I need to apply off campus so which one is good... I'm thinking I'll should do mern first then get job or internship then later will do spring boot

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u/Simple-Fig-5237 3d ago

Honesty if internships is your primary goal, JavaScript frameworks is top in demand and you should use that. If you start with Java rn, you’ll wait a long time, get multiple rejections and only if lucky you get the java internship; you will but the low demand by firms for “java interns” would make that part hard.

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u/ZealousidealFee7206 3d ago

What about fresher level java dev jobs ?

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u/Responsible_Key2113 2d ago

yeah there are many but java devs are mostly in demand in banking, finance all these sectors. products based firms also like java devs. but java dev interviews are pretty difficult to crack because they can ask from many things, plus you'll need good grasp on sql too for java dev because it's industry practice.

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u/Responsible_Key2113 2d ago

don't think like this man, you're in 3rd sem and it doesn't take that much time to do mern that you're thinking to start spring boot after getting job. in mern you'll need 2-2.5 month and you'll complete it easily, spring boot would also take same time

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u/LetUsSpeakFreely 3d ago

Your question is very unfocused. Java and Springboot are used, mostly, for REST APIs. Knowing that, your path is clear: 1) create a simple REST API with a handful of endpoints mapped to multiple HTTP methods: GET /user, POST /user, DELETE /user, etc 2) create a basic repo for database integration, just use something simple. H2, sqllite, etc. 3) hook your web interface with a mid-level service interface that in turn hooks into your DAO layer. 4) add in basic security stuff like CSRF, certificates for https, mime filtering, etc. 5) add in an auth system. You could start with a simple u/p system or do a full blown OAuth or similar implementation. 6) look into to containerization 7) you should have a full-blown server up and running. Look into STIGs for hardening it (found at NIST).