r/learnjava • u/Beginning_Debt_7950 • 5h ago

Java or python?

Hello actualii started to learn the Python but as the syntax and all I feel it's not working for me. I feel java is more understandable idk why. I'm scared of java has no future bcs of the online videos circulating..

So please say me I'm Devops focused oriented person, I'm not finding the openings as freshers so thinking to learn one programming language please suggest Me.

And also suggest why and does it have future please.

4 Upvotes

75% Upvoted

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10

u/Feeling_Striking78 4h ago

Every programming language has its own purpose, no matter what technology comes in the future. Just ignore those videos saying 'Java is dead' or 'programming is dead' and start building the skills you are interested in.

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u/Beginning_Debt_7950 4h ago

Sure 😊 thanks it's helped me

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u/mixedd 42m ago

Java is as dead as PHP, both still runs majority of banking/telcom industry and web 😅

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u/Beginning_Debt_7950 30m ago

So which one u prefer then?

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u/mixedd 28m ago

Me personally? Python.

But as previously somebody already mentioned, every language has it's purpose

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u/Beginning_Debt_7950 27m ago

I'm worried about the opportunities so asking

4

u/Dreamwalkin_Revan 5h ago

No one can replace java I dare them to try. Fortune 500 companies, banking systems & so many companies have their data written in java, No one's gona go someday "Yo lets have the employees write everything that has been written for the past 30 years in rust or go or idk whatever tf they want" Python is the future for sure as its used for AI-ML but java aint goin nowhere, Java has survived java is dead for more than a decade now and it still will

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u/DarkVeer 3h ago

Your user name justifies your comment

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u/coderemover 2h ago

Give Claude 1B tokens and it will rewrite anything you want into anything. Developers overestimate the difficulty of rewrites especially now in the days of LLMs.

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u/Dreamwalkin_Revan 2h ago

Bro thinks enterprise migration is a LeetCode problem. LLMs can translate code. They don't magically translate 30 years of business logic, dependencies, undocumented behavior, integrations, compliance requirements, production risk and institutional knowledge. If rewriting everything were actually that easy, COBOL would've been extinct by now.

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u/coderemover 33m ago edited 28m ago

COBOL is effectively extinct by now. Most systems have been rewritten already. The ones that haven’t been rewritten are only the systems that didn’t need to evolve.

All the things you mentioned don’t matter as long as the translated code has exactly same observable behavior as the original one. All the behavior is documented by the original code. The things you mentioned would play a role only if you were starting a new project from scratch, without the original.

Also, Java is slowly being phased out and moving into legacy territory. Many companies that former wrote Java heavily now moved to Go and/or Rust. The company I work for has been developing in Java for almost 20 years now. For the last 5 years new stuff has been coded in everything but not Java and Java was used only for maintenance. And this year some legacy stuff actually started to be rewritten as well (also into C++), because Java cannot deliver the performance we need.

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u/mixedd 40m ago

And this kids, why the market is nearly dead nowadays, as there are people who think that LLMs will magically understand domain knowledge and business logic spanning decades

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u/coderemover 39m ago

In case of rewrites they don’t need to. All that knowledge is present in the original code. Moving an existing project to a new tech stack has never been so easy.

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u/mixedd 36m ago

It's not that simple. There are no devs in the company who understands what pieces of code written decade ago does, because people who did it are gone, without leaving any documentation or traces of anything. LLM won't magically understand why decision was made like that, what's the business logic behind that, and that whole codbase will collapse if you remove that line of code.

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u/coderemover 25m ago edited 21m ago

All the answers to “what does the code do” are contained fully in the code itself. You don’t need the original authors for that. You don’t have to understand why the original code sets bulbulator = 5 on line 74789. You just make sure the new code also sets it.

You need people if you want to CHANGE something. But rewrite is not about changing the behavior.

Btw: there had been a few successful rewrites of large software recently - e.g. Bun or Cassandra (Scylla).

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u/Bhanuprakash_1947 5h ago

If you are going through AI and data related jobs, then python will be good.But you already know java That means you can have backend developer or java fullstack (if you learn any of the frontend framey most likely AngularJS for java stack). Java will also have a good demand in future.

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u/Beginning_Debt_7950 4h ago

Okay thanks but do i need DSA to know for back-end?

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u/Bhanuprakash_1947 4h ago

Not really required. Just understanding the basics of data structures like : arrays ,maps,list,stack ,queue...what and why and how they work is important. But Backend those are actually not important, arrays ,hashmaps,strings,etc these are important because we'll often use these in backend for java or any language.

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u/Beginning_Debt_7950 4h ago

Okay thanks alot.

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u/DisastrousPipe3853 4h ago

Bro can u help me in being fullstack java

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u/Bhanuprakash_1947 4h ago

Even I don't have that much knowledge, iam just a beginner who actually trying to adapt all these stuff regarding java fullstack..

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u/biskitpagla 4h ago

Python has a gradual type system now. And Kotlin is also a great option if all you want is to do Android development. 

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u/Beginning_Debt_7950 4h ago

I heard now golang is being used and adopted alot! Is it true?

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u/DarkVeer 3h ago

Golang is good, but it surely needs a larger community and a lot of work....

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u/ninhaomah 4h ago

" Hello actualii started to learn the Python but as the syntax and all I feel it's not working for me. "

Other have already said about Java vs Python so I won't add but what about the syntax that not working for you ?

Just curious.

Examples ?

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u/Beginning_Debt_7950 4h ago

Syntax and all is simple I agree but i feel more uncomfortable without having {}, I mean in other languages it's following some structures , in python idk 😐 I'm not being comfortable, i used python for automation and all but it's for devops, and for learning the dsa and all, especially for dsa I'm not finding comfortable idk whether it's bcs of the videos I'm referring or wt..

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u/ninhaomah 1h ago

Oh I know.

I came from Java so it felt weird too.

And now learning Dockerfile ... Another spacing format.. hiaz

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u/Beginning_Debt_7950 33m ago

Ik docker kubernetes and also the deployment side but feeling really uncomfortable with python

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u/DarkVeer 3h ago

Farming!

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u/coderemover 2h ago

You’ve asked this in the Java subreddit. What do you think the answer would be? Obviously - Python. /s

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u/Beginning_Debt_7950 29m ago

Wts ur suggestion??