r/javahelp • u/Relative-Waltz-2542 • 19d ago

Workaround Learn Java in 2026

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

19 Upvotes

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7

u/Homerlncognito 19d ago

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.

2

u/Relative-Waltz-2542 19d ago

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

2

u/Swordfish0711 17d ago

Thanks. I'm gonna use your suggestions for job portfolio

2

u/vegan_antitheist 19d ago

You also need to know about requirements engineering, hardware, databases, networks, user interface, design patterns, software construction, unit testing and test-driven development, security, compilers, mathematics, operating systems, agile software development, continuous integration, protocols, etc cetera, et cetera...

We can't decide for you what to do next. There's always more than enough to learn next. Java is just one language but to actually work for a company you need to learn a lot more. They need someone who can be part of a team and often they do Scrum, Kanban or something similar. Most of the work isn't programming. Instead of writing code you have to do requirements engineering, testing, preparing the next release, but fixing, endless meeting, and so on.

1

u/net_ramblings 19d ago

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

1

u/Worth_Imagination495 19d ago

Java がわかるのなら、React はちょろいです
動かす仕組みは違うけど、圧倒的な便利さに気づくと思う、あとは、pythonやtypescrypt

コンパイル言語の面倒臭さから解放されて、フロントをほぼリアルタイムで編集する喜びを知って欲しい

ただ、git hub copilot は必須かな、0から書くのはもはや面倒くさい

日本国内だとjava の単金は下がってきているので先細りだと思うよ。もう転換期に入ってる。
ただ、全ての基本として捉えやすいから java って教材としては有用なんだよね
java は昔、フリーソースだったから、たくさんの企業がこぞってjavaシステムにしていた。けど、2019年ぐらいで有料化したので、わざわざ、javaを選ぶ意味も無くなって、MSのサポートが受けられるC#だったり、Python に移行しようって動きがあった。今はまちまちだけど、AI案件がたくさん出てきて、javaを選ぶ意味がもはや無いから、React や Typescrypt でチャットアプリに行くとこが多い。何より軽い。

javaがわかるのなら、どこの会社でも雇ってくれる。
そっから別の言語も勉強したいって言えば採用してくれそうだけど

1

u/chainick666 18d ago

Buscar trabajo y que este relacionado con Java