Here is the crossword link: https://crosswordlabs.com/view/sealed-5

🔸 CONTEXT

Boost your Java knowledge with a fun micro-exercise! I created a crossword to practice the core concepts behind sealed classes & interfaces (JEP 409). Perfect for revising the vocabulary without a long tutorial. 😄

🔸 WHAT’S INSIDE

▪️ Terms like sealed, permits, final, non-sealed, record, module, narrowing, API

▪️ Short, accurate definitions (from the official docs) 👍

▪️ Crossings reinforce how the concepts connect 🧠

🔸 TRY IT HERE

👉 Crossword link: https://crosswordlabs.com/view/sealed-5

Tip: Do it once from memory, then a second time with the docs open. 📘

🔸 WHY THIS HELPS

▪️ Makes the JEP 409 vocabulary stick faster

▪️ Quick refresh for code reviews & interviews

▪️ Great for study groups/JUG warm-ups 🙌

🔸 CALL TO ACTION

▪️ Give it a spin and tell me your time ⏱️

▪️ Want a printable version or another theme (Records, Pattern Matching, Virtual Threads)? Comment below! ✍️

#️⃣ s

#Java #SealedClasses #JEP409 #Java17 #Java21 #OOP #TypeSafety #Records #PatternMatching #LearningByDoing #Crossword #Developers #JavaTips #JUG #StudyNotes

The words used are in the Sealed feature documentation page: https://lnkd.in/eeE7dwun

Do it: Crossword link: https://crosswordlabs.com/view/sealed-5