--- title: "JavaForge: Java Interview - Bewertungen, Einnahmen und Downloads in Aserbaidschan | Apple App Store" description: "A no-nonsense Java interview prep app for backend engineers. Fully offline. Zero ads. Zero tracking. JavaForge bundles Blind 75, System Design, Core Java, the Spring ecosystem, and behavioral questio" --- # JavaForge: Java Interview — Aserbaidschan > Blind75 · System Design · STAR ![JavaForge App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/35/a4/19/35a419fb-b473-707c-2032-5c603385fb9f/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [YIFENG JIA](https://apptail.io/de/developer/yifeng-jia-hhjTFb) **Category:** Education **Rating:** N/A (0 ratings) **Price:** Free **Bundle ID:** com.kevinjia.app.JavaForge **Store:** Apple App Store **Country:** Aserbaidschan **Version:** 1.0 (released 2026-05-19) **Original Release:** 2026-05-18 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/az/app/app/id6770013304) **AppTail Page:** [https://apptail.io/de/app/javaforge-java-interview-wMVA/azerbaijan](https://apptail.io/de/app/javaforge-java-interview-wMVA/azerbaijan) ## JavaForge Description A no-nonsense Java interview prep app for backend engineers. Fully offline. Zero ads. Zero tracking. JavaForge bundles Blind 75, System Design, Core Java, the Spring ecosystem, and behavioral questions into a pocket coach you can pull out on the train, at lunch, the night before an onsite. WHAT YOU GET ▸ Blind 75 — 75 classic coding problems Organized by Array / Binary / DP / Graph / Interval / Linked List / Matrix / String / Tree / Heap. Each problem ships with: - Step-by-step approach (brute force → optimal → edge cases) - Complete Java solution (ready to read or rewrite from memory) - Time / Space complexity - Gotchas that catch most candidates ▸ System Design — high-frequency designs URL shortener, design Twitter, ride-hailing dispatch, messaging, recommendations — broken down into requirements → capacity estimation → high-level architecture → component details → trade-offs. ▸ Core Java — the three hot spots Collections, Concurrency, the JVM. HashMap internals, ConcurrentHashMap's evolution, the Java memory model, G1 vs CMS garbage collection. ▸ Spring · Boot · Data IoC, AOP, Spring Data JPA, Spring Security — concepts and high-frequency interview questions. ▸ Behavioral — 20 STAR-method questions Fully editable answer templates. Pre-polish your "Tell me about a time…" stories into STAR shape so you don't freeze on the day. WHY JAVAFORGE Fully offline — works on airplane mode Daily Review — surfaces what you flagged for review, tracks your streak Visible progress — every module shows how far you've come Privacy-first — no accounts, no network, no data collection Distraction-free — no ads, no social pressure, no gamification gimmicks Open the app. Hit Daily Review. Five minutes a day adds up. ## JavaForge Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b4/72/a4/b472a415-f8af-0a38-f93c-820e05fb2788/simulator_screenshot_34FA9FC0-780A-473E-B285-1CBEFA0ADFA2.png/2064x2752.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/79/cd/90/79cd90e5-ca70-65d4-6e2c-35fa881ae347/simulator_screenshot_ABF07BCA-54E1-4793-B78B-2CCD4401FDD2.png/2064x2752.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/03/5d/db/035ddb90-f779-0ec8-783b-97c1cf92b928/simulator_screenshot_5E8381ED-0329-4D42-B6CB-90140863A6FD.png/2064x2752.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1f/cc/2c/1fcc2c4c-efa8-5c83-5947-59d6a08258b4/simulator_screenshot_D1857FB5-5BE7-46DD-A466-5F22C2F6EB47.png/2064x2752.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/0c/98/e7/0c98e734-efc4-1227-429b-597510f89f2a/simulator_screenshot_26591A9C-AAFE-4F4C-9520-C27BF76B4336.png/2064x2752.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f1/0c/cd/f10ccd17-ba5e-ec67-8ddf-169205cc32d8/simulator_screenshot_7F6130F5-A488-4A35-9C93-396AD1036635.png/2064x2752.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e4/04/35/e4043546-312c-b7f0-c32a-ff92c0101c6b/simulator_screenshot_92F56B5E-B29C-4F5E-9359-DFB017C8222E.png/2064x2752.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b6/e1/01/b6e1012d-f8e8-70f6-4c57-d1b707a59b60/simulator_screenshot_D71846D8-1770-476C-87C2-22AEB9B512E8.png/2064x2752.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/93/60/be/9360bef5-d4b9-2978-305e-4a8e38a3a117/simulator_screenshot_5CF24956-97C8-482F-8073-475E3FDEF027.png/2064x2752.png) - [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8c/fe/b8/8cfeb82c-bccc-f98a-2df3-5a1f24f1e71e/simulator_screenshot_58E30BF2-1476-48EE-9296-41EDEACFC509.png/2064x2752.png) ## JavaForge Store Rankings | Chart | Country | Category | Rank | |-------|---------|----------|------| | Top Bezahlt | Aserbaidschan | Education | #6 | | Top Bezahlt | Aserbaidschan | Overall | #21 | --- ## About AppTail [AppTail](https://apptail.io/de) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io/de) - [Top Charts](https://apptail.io/de/top-iphone-apps) - [Sign Up for Full Access](https://apptail.io/de/account/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io/de) - Mobile App Intelligence Platform*