Chart standing · US
What changed · US
Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.
The Java runtime got a big upgrade — the editor now keeps up well past the AP exam. NEW: java.util collections • HashMap, LinkedHashMap, TreeMap, HashSet, LinkedHashSet, TreeSet • ArrayDeque, LinkedList, Stack, PriorityQueue • Collections, Comparator, Objects, and the Iterator interface • Your own equals() and hashCode() are honored by the hashed collections NEW: more of the language • Your own generic classes and generic methods, not just ArrayList • Inner and anonymous classes — an anonymous Comparator works anywhere one is expected • Bitwise and shift operators, with Java's shift-distance masking • Hex, binary, and underscore literals: 0xFF, 0b1010, 1_000_000 • throws clauses, varargs, multi-catch, switch on String, interface default methods • Enhanced-for over your own Iterable FIXED • Arrays.sort with a comparator silently ignored the comparator and sorted in the wrong order. It doesn't anymore. • Deep recursion crashed with "Internal interpreter error" instead of raising a real StackOverflowError you can catch. • On iPhone, the output console could be pushed off the bottom of the screen in the Playground — the editor and console now always fit the display. • Removed a Files button that mentioned logging in; this app has no accounts. • "What's Supported" has been rewritten to match what the runtime actually does.
Ratings breakdown · US
The star breakdown behind this app's rating in this storefront.
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About
CS++ Java IDE is a focused, offline Java environment for students learning to code — and a complete AP Computer Science A practice platform. Write code in a real Java IDE designed for touch. Run programs instantly with the bundled Java runtime — no internet, no compiler setup, no accounts. Tap Run and your code executes on your device. WHAT'S INCLUDED • Multi-file Java editor with syntax highlighting, line numbers, auto-indent, and a templates menu • Bundled Java runtime — runs your code locally, even on airplane mode • Unit 1 free: 11 hand-picked starter problems covering primitive types, output, and your first algorithm • Full AP CSA course (one-time $9.99 unlock): 11 units, 50+ inline coding challenges, persistent progress • Pseudocode-to-Java translator for AP CSP students stepping up • System.out.println, Scanner input, exceptions, ArrayLists, classes, inheritance — every topic in the AP CSA Java subset DESIGNED FOR LEARNING • Each challenge tests your output against expected results • Inline error messages with the exact line and what went wrong • "Format" button cleans up indentation in one tap • Templates dropdown loads common patterns: Scanner input, file reading, ArrayList traversal, recursion • Progress saved on-device — pick up where you left off UNIVERSAL Built for iPhone and iPad. The editor and console scale from 4-inch phones to 13-inch iPads, with a full-bleed editor on phones to maximize coding space. OFFLINE-FIRST No account creation. No login. No data sent off your device. Lessons, code, and progress all live in the app's local storage. Use it on a flight, in a classroom with no Wi-Fi, or anywhere. THE FULL AP CSA COURSE Unlock all 11 units for $9.99 (one-time, no subscription): 1. Primitive Types & Output 2. Booleans & Conditionals 3. Iteration 4. Strings 5. Arrays 6. 2D Arrays 7. ArrayList 8. Recursion 9. Classes & Objects 10. Inheritance & Polymorphism 11. Searching & Sorting Built by Yellow Dart Publishing for csplusplus.com — the College Board–aligned CS curriculum used by teachers across the U.S.
What's new · 1.2
The Java runtime got a big upgrade — the editor now keeps up well past the AP exam. NEW: java.util collections • HashMap, LinkedHashMap, TreeMap, HashSet, LinkedHashSet, TreeSet • ArrayDeque, LinkedList, Stack, PriorityQueue • Collections, Comparator, Objects, and the Iterator interface • Your own equals() and hashCode() are honored by the hashed collections NEW: more of the language • Your own generic classes and generic methods, not just ArrayList • Inner and anonymous classes — an anonymous Comparator works anywhere one is expected • Bitwise and shift operators, with Java's shift-distance masking • Hex, binary, and underscore literals: 0xFF, 0b1010, 1_000_000 • throws clauses, varargs, multi-catch, switch on String, interface default methods • Enhanced-for over your own Iterable FIXED • Arrays.sort with a comparator silently ignored the comparator and sorted in the wrong order. It doesn't anymore. • Deep recursion crashed with "Internal interpreter error" instead of raising a real StackOverflowError you can catch. • On iPhone, the output console could be pushed off the bottom of the screen in the Playground — the editor and console now always fit the display. • Removed a Files button that mentioned logging in; this app has no accounts. • "What's Supported" has been rewritten to match what the runtime actually does.
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