# Java Features — Every Java Feature. One Place.

> Every Java Feature. One Place. (iPhone/iPad app by YIFENG JIA.)

- Source: https://appshunter.io/ios/app/java-features/id6760608367 (this page in markdown: same URL + `.md`)
- Developer: [YIFENG JIA](https://appshunter.io/developer/1869839015)
- Category: Developer Tools, Education
- Price: Free (on sale, was $0.99)
- Age rating: 4+
- Requires: iOS 18.5 · 6 MB
- Languages: English
- Released: 2026-03-20
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/java-features/id6760608367/reviews.md

## What is Java Features?

THE JAVA REFERENCE FOR DEVELOPERS WHO ACTUALLY SHIP

Every Java feature from Java 8 through Java 25 — 70+ features — in one sharp, no-fluff app. Built for backend engineers, interview preppers, and anyone tired of grepping release notes.

WHAT'S INSIDE

- 70+ features covering Java 8 through Java 25 (LTS)
- Lambda, Streams, Optional and every Java 8 fundamental
- Records, Sealed Classes, Pattern Matching — the modern ADT trio
- Virtual Threads, Structured Concurrency, Scoped Values
- Preview and Incubator features clearly marked, with a status legend
- Direct links to the official JEP and Oracle docs for every feature

LEARN MODE

- Flashcards: flip-card study across every feature
- Quiz: 10/15/20-question rounds with version, status, JEP-match, and hand-written trap questions. Tracks high score and best streak.
- Interview Prep: deep prep content for 22 of the most-asked Java interview topics. Every topic breaks into why it matters, real question phrasings, key points, common traps, follow-up escalations, and a whiteboard-ready code snippet.

DAILY USE

- Filter by version (Java 8 to 25, LTS, or Experimental)
- Category filter and full-text search
- Bookmarks: save any feature for later
- Changelog: browse what shipped in each version range
- Share card: export any feature as an image for your team chat
- Reading progress tracker

CODE EXAMPLES (PRO)

Unlock syntax-highlighted code examples for every feature with a single one-time purchase. No subscription.

DESIGN

Built with a brutalist, high-contrast aesthetic — no rounded corners, no gradients, just dense information and sharp borders. Designed to be glanceable at a glance and deep when you need it.

Written in native SwiftUI. Fast. Offline. No tracking.


## Version history (last 3 releases)

### 2.0 — 2026-04-17

QUIZ MODE + INTERVIEW PREP
Two major additions for developers actually prepping for the job:
• QUIZ — 10/15/20-question rounds pulled from every feature. Version, status, JEP-match, and hand-written trap questions. Tracks high score and best streak.
• INTERVIEW PREP — Deep-researched prep for 22 of the most-asked Java interview topics (Streams, Optional, Records, Sealed Classes, Pattern Matching, Virtual Threads, CompletableFuture, and more). Every topic breaks down into:
  – Why interviewers keep asking it
  – Real question phrasings
  – Must-know technical facts
  – Common traps candidates fall into
  – Follow-up escalations seniors get
  – A whiteboard-ready code snippet
Also in this release:
• Unified LEARN hub (Flashcards + Quiz + Interview Tips)
• Cleaner single-line header
• Category filter merged into search
• New version-history icon
• Share-feature card for social
• Reading progress tracker

### 1.5 — 2026-03-26

Flashcard mode. Select any Java release (or ALL) from the version picker and drill through every feature in that scope. Each card shows the feature name on the
  front; tap or press FLIP to reveal the full description and syntax-highlighted code example on the back. Swipe left/right to navigate. A progress counter and
  progress bar track position within the current set. Switching versions resets to card 1 automatically.

### 1.4 — 2026-03-20

No release notes.

## More apps by YIFENG JIA

- [SmartyPrep: NAPLAN Year 3](https://appshunter.io/ios/app/smartyprep-naplan-year-3/id6757944675)
- [JavaForge: Java Interview](https://appshunter.io/ios/app/javaforge-java-interview/id6770013304)
- [Ripen — Pomodoro Orchard](https://appshunter.io/ios/app/ripen-pomodoro-orchard/id6770152456)

All apps by YIFENG JIA: https://appshunter.io/developer/1869839015

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*