
CS++ Intro to Java
Learn Java, fully offline
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In-App Purchases
About
CS++ Intro to Java is a complete first programming course for iPhone
and iPad — 10 units and 31 lessons that take you from your very first
println to 2D arrays, fully offline. Lessons embed 60 runnable Java
coding challenges, 63 inline multiple-choice checks, and 22 Parsons
problems — all executed on-device by a bundled Java interpreter. No
account. No ads. No tracking. No internet required.
WHAT'S INCLUDED
• 31 lessons across 10 units — from your first program to 2D arrays
• 60 runnable coding challenges — write real Java and run it
on-device, no JDK, no compile server
• 63 inline multiple-choice checks
• 22 Parsons problems — drag code blocks into working order
• Variables, operators, Strings, conditionals, loops, classes,
arrays, ArrayLists, and 2D arrays
• Everything works fully offline — progress stays on your device
UNIT 1 IS FREE FOREVER
Unit 1 — Getting Started with Java (3 lessons) is unlocked at
install. Write and run real programs, and decide if the rest is worth
$9.99.
UNLOCK FULL INTRO TO JAVA — $9.99 ONE-TIME
A single in-app purchase unlocks all 10 Intro to Java units (60
coding challenges):
Unit 2. Variables & Primitive Types
Unit 3. Operators & Expressions
Unit 4. Strings & Using Objects
Unit 5. Boolean Expressions & Conditionals
Unit 6. Loops & Iteration
Unit 7. Writing Your Own Classes
Unit 8. Arrays
Unit 9. ArrayLists
Unit 10. 2D Arrays
Pay once, keep forever. Restores on any device signed in to the same
Apple ID. No subscription. Future content updates included.
PRIVACY
Everything runs on your device. The app does not require an account,
does not collect personal information, does not include analytics or
advertising, and does not track you across apps. Your progress stays
on your device. See csplusplus.com/privacy for details.
WHO IT'S FOR
• Complete beginners writing their first line of code
• Intro programming students who want practice anywhere, with or
without Wi-Fi
• Teachers who want a tablet-friendly tool for in-class practice
• Anyone headed toward AP Computer Science A — the CS++ AP CSA
course picks up right where this one leaves off
For the full browser Java IDE, per-unit quizzes, and timed practice
exams, visit csplusplus.com.
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What's New in CS++ Intro to Java
1.0.1
August 14, 2026
Fixes and polish: • The "Watch on csplusplus.com" link at the end of each lesson pointed to a page that no longer existed on our site. It now opens the matching lesson page. • Layout fixes so every panel and line of text fits the screen on all iPhone and iPad sizes.
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In-App Purchases
$9.99
Unlock Full Intro to Java
All 10 units. Pay once, keep forever.




