Learn Java in 2026

[u/Relative-Waltz-2542]

Hey I am a computer science graduate.... From a tier 3 college (2023 graduate) I have learnt core java but I don't know how to proceed ahead? What should be my next step.... I am working in Non it from past 2 years.... I do learn algos and stuff... I understand and write basic code... I am admiring to be a good software engineer.... It love building apps..... I do not have much knowledge on React/Angular Java is my thing. I want to learn and switch my domain..... Please give me a roadmap or career suggestions and from where I can learn...... I have studied Head First java and learnt whatever knowledge I have now...... I know this is not enough.... !! Also suggest what technology should i master along with Java.... so that I can get a good job..... ! Any input will be helpful... Thanks

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[u/Homerlncognito]

Create a web app back-end with SpringBoot, use an H2 database with file-based persistence. That will allow you to play with REST endpoints, JPA/Hibernate and you'll be able to see what entries are in the database. Create a simple FE in React or some other framework so you can test it end-to-end, also add swagger (openapi) for testing endpoints themselves from a browser.

Next could be proper logging and user authorities, JWT tokens shouldn't be too hard to implement.

This can be a simple e-shop but build whatever floats your boat. You can even add a chatbot using LangChain4j and a locally running LLM, 1b-2b class models are sufficient for a demo app. Adding RAG and tool calling would then be natural extensions.

[u/Relative-Waltz-2542 → u/Homerlncognito]

Sounds interesting.... Will try to make a move ahead!!

[u/net_ramblings]

How does this post get 5 likes with only one comment? Fake, fake, fake.