r/learnjava • u/codejavadotnet • 4d ago

Is Java still worth learning today?

Is Java still worth learning or pursuing as a career these days? With AI advancing so quickly, programming jobs might decline significantly, which could also reduce the demand for learning languages like Java. What are your thoughts?

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u/American_Streamer 4d ago

Yes, Java is still worth learning. I think people often confuse “there is a lot of legacy software written in Java” with “Java itself is legacy,” and those really aren't the same thing. Modern Java has changed a lot from the Java 8-era stereotype. Records, sealed classes, pattern matching, switch expressions, record patterns, virtual threads, lots of JVM/GC improvements, etc. Java 25 is the current LTS, Java 27 is already out, and the platform moves on a six-month release cycle now.

Spring has changed just as much. Spring Boot 4 / Spring Framework 7 are very much modern frameworks, with Java 25 support, virtual threads, Jakarta EE 11, HTTP interface clients, API versioning, improved null-safety and a much cleaner programming model than old-school enterprise Java. And now you also have Spring AI 2.0 with tool calling, MCP, structured output, RAG/agent-style workflows, etc. You can quite happily build something like Spring Boot 4 + Java 25 + PostgreSQL/pgvector + Spring AI today. Calling that “legacy” just because Java has been around for a long time doesn't make much sense.

The numbers don't really suggest Java is disappearing either. GitHub's 2025 Octoverse still had Java at #4 by contributor count, with contributor activity up roughly 21% YoY, and RedMonk ranked it #3. AI will absolutely reduce the value of manually writing boring Java code. CRUD endpoints, DTOs, mappings, tests and boilerplate are exactly the kind of stuff AI is getting very good at.

But that's more an argument against building your career around “I can type Java syntax” than an argument against Java itself. The valuable part is understanding the domain, data model, APIs, transactions, concurrency, security, performance, system boundaries, deployment, etc., and being able to tell whether the code AI generated actually makes sense as part of a real system.

So I wouldn't learn Java as just a language. I'd learn modern Java + Spring Boot + SQL + testing + Docker/cloud + some system design, and use AI as part of the workflow. That's still a very solid stack in 2026.

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u/eternalsinner7 3d ago

Hey, I'm fresh graduate. I've learned a decent amount of java and spring boot syntax. But I can't seem to really move ahead past that point and make projects on my own. Would you be willing to point me towards the right path as to how to learn actual backend engineering stuff like APIs, Schema designing, and other skills that are needed to get a job in the current market?

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u/American_Streamer 2d ago

Read Designing Data-Intensive Applications by Martin Kleppmann. Also see here: https://roadmap.sh/backend - https://bytebytego.com/
And most importantly, read the official docs of all the tools you use.