# DSA preparation in Java > Learn Data Structures & Algorithms in Java for coding interviews & placements. Canonical page: [https://chrome-stats.com/d/com.learnsimpli.dsainjava](https://chrome-stats.com/d/com.learnsimpli.dsainjava) ## Overview - **ID:** `com.learnsimpli.dsainjava` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Learn Simpli - **Category:** EDUCATION - **Downloads:** 39 - **Version:** 1.6.1 - **Last updated:** 2026-08-19 - **First published:** 2026-06-25 - **Publisher country:** IN - **Size:** 45 MB - **Data as of:** 2026-09-08 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.learnsimpli.dsainjava) - **Website:** [https://www.learnsimpli.com](https://www.learnsimpli.com/) - **Privacy policy:** [https://www.learnsimpli.com/privacy-policy/](https://www.learnsimpli.com/privacy-policy/) ## Description Master DSA — data structures and algorithms in Java — exactly as they are evaluated in core engineering interviews and campus placement drives. This Java placement preparation app pairs clear, structured lessons with an offline Java compiler, a native code editor, interactive runnable source code, and practical programming challenges.

📚 DATA STRUCTURES FOUNDATION
Study detailed programming lessons covering arrays, strings, linked lists, stacks, queues, and hashing, then progress into binary trees, graphs, heaps, and tries. Every sub-topic features thorough algorithmic theory, guided coding practice, and explicit time and space complexity analysis using Big O notation, and a quick check quiz confirms each lesson.

⚙️ ALGORITHM PATTERNS THAT WIN INTERVIEWS
Master sorting, searching, recursion, two-pointer, and sliding-window patterns, then tackle greedy algorithms and dynamic programming (DP) through classic problems like the knapsack problem, longest common subsequence, and matrix DP.

💻 MOBILE CODE RUNNER & COMPILER
Solve coding problems directly in the native code editor and compiler — no setup. Execute your Java solutions against hidden unit test cases, compare with optimized reference answers, and watch algorithms execute live. The runner also supports Python, C++, C, Go, JavaScript, Kotlin, Rust, Dart, and Swift.

🎯 ALGO LAB: FAANG-STYLE PROBLEMS
Open the dedicated Algo Lab to solve high-yield FAANG and MAMAA algorithmic coding problems with comprehensive, optimized solutions — the questions top tech companies actually ask.

📝 QUIZZES, MOCK TESTS & INTERVIEW QUESTIONS
Take topic-wise multiple choice quizzes that scale from easy to hard, with detailed logical explanations behind every answer and automatic flagging of your low-accuracy weak areas. Timed mock tests blend theory, MCQs, and coding with result analytics, and curated interview questions come with hints and model answers.

🔁 SPACED REPETITION
Every question you get wrong is queued for spaced-repetition review, returning at smart intervals until you truly know it — weak topics get fixed before the interview.

🤖 INTERACTIVE SMART MENTOR AI TUTOR
Never stay stuck on a difficult binary tree traversal or a confusing graph algorithm. Chat for lesson-aware hints, review runtime errors, upload photos of code or diagrams, or run realistic mock interview sessions. An automated seven-day study plan blends concept review with rigorous interview drills.

📊 ANALYTICS, STREAKS & LEADERBOARDS
Monitor your consistency with visual activity charts, tracked study minutes, and completed milestones. Keep a daily check-in streak, earn XP and coding badges, and climb the global engineering leaderboard.

🌐 BUILT FOR EVERYONE
Works offline with light and dark themes, in English, Hindi, Kannada, Tamil, and Telugu with technical term protection to keep code syntax safe.

Java is a trademark of its respective owner. This application is an independent learning platform and is not affiliated with, sponsored, or endorsed by any trademark holder. ## Rankings - #2,339,547 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.WAKE_LOCK` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.google.android.c2dm.permission.RECEIVE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` - `com.google.android.providers.gsf.permission.READ_GSERVICES` - `com.learnsimpli.dsainjava.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [DSA preparation in C++](https://chrome-stats.com/d/com.learnsimpli.dsaincpp) — 22 users - [DSA preparation in JavaScript](https://chrome-stats.com/d/com.learnsimpli.dsainjavascript) — 19 users - [DSA Forge: Learn DSA in Java](https://chrome-stats.com/d/com.izhandroid.dsa) — 2 users - [DSA Academy: Coding Prep](https://chrome-stats.com/d/com.dsaacademy.codingprep) — 1,879 users - [Data Structures & Algorithms](https://chrome-stats.com/d/com.trsj.dsa.app) — 110 users - [MASTER DSA](https://chrome-stats.com/d/com.nerotechnologies.masterdsa) — 24 users - [Data Structures & Algorithms](https://chrome-stats.com/d/data.structures.algorithms.computer.science) — 1,015 users - [DSA preparation in Python](https://chrome-stats.com/d/com.learnsimpli.dsainpython) — 51 users - [Learn Java & DSA Certificate](https://chrome-stats.com/d/com.learn.java.programming) — 1,554 users - [Data Structure and Algorithms](https://chrome-stats.com/d/com.rak.dsa) — 3,938 users - [DSA Ally](https://chrome-stats.com/d/com.dsaally) — 145 users - [Java Data Structures Pro](https://chrome-stats.com/d/com.algsoftlab.learndsajavapro) — 9 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.learnsimpli.dsainjava)