topic · Java

Java Fundamentals — JVM / Generics / Collections / Streams

Java skills for the Java Developer (Backend) career path. Filter, model, and reason about the real data this role works with every day.

Professional Mid priority 1 Sandbox & Interactive Quiz Sandbox & Interactive Quiz

What you'll learn

Java skills for the Java Developer (Backend)

this lesson focuses on the practical Java toolkit a working Java Developer (Backend) reaches for on the job.

javajvmgenericscollectionsstreamsoop

Sandbox preview

Try the first query

-- Java — your first interaction
SELECT example, value
FROM java_dataset
WHERE priority = '1'
AND career = 'Java Developer (Backend)';

▸ preview · Sprint-2 will replace this with a live runner

Next up in this path

Spring Boot Fundamentals

Once this topic clicks, the recommended next step keeps the learning streak going on adjacent skills in the same career path.

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Build status

Sprint-1 stub

This is the Sprint-1 stub for ai.careerplane.technology.java-developer.java.fundamentals. The fully-generated topic page (sandbox + quiz + AI hints + interactive tooling) lands in Sprint-2 at static/content/technology/Java Developer (Backend)/Java/Java Fundamentals — JVM / Generics / Collections / Streams/index.html (per arch/memo.md → D-2026-04-22-13). The //go:embed all:static directive auto-serves it on the next container rebuild — no server-code change needed.

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