Welcome to Kotlin Educational – a growing, hands-on Kotlin learning repository focused on programming fundamentals, data structures, and algorithmic thinking.
⚠️ Disclaimer: This project is actively evolving. While many useful materials are already available, it’s still under construction. Feedback, questions, and contributions are always welcome!
- 🧠 Kotlin Language Guide – A modular, in-depth Kotlin tutorial: syntax, types, functions, coroutines, and more.
- 🔧 Algorithmic Foundations
Classic algorithms implemented and explained in Kotlin: searching, sorting, greedy, dynamic programming, recursion, backtracking, graphs, and more. - 📦 Core Data Structures – Idiomatic Kotlin implementations of stacks, queues, trees, graphs, and more.
- 🧩 LeetCode Challenges – Clean Kotlin solutions with helpful commentary and explanations.
- 🛠️ Gradle Kotlin Project – Well-structured and ready-to-run with proper packages and module separation.
Kotlin Educational is organized as a modular Kotlin Gradle project, with a focus on clarity, learning structure, and scalability.
Here's a guide to help you navigate through the repository easily:
| Folder | Purpose | Target Audience |
|---|---|---|
src/main/kotlin/kotlinBasics |
📘 Kotlin Language Guide – theory, syntax, examples, exercises | Beginners, self-learners |
src/main/kotlin/algorithms |
🧠 Classical algorithms implemented in Kotlin | Intermediate / advanced |
src/main/kotlin/basicStructures |
📦 Data structures (stack, queue, trees, etc.) | All levels |
src/main/kotlin/leetCode |
🧩 LeetCode problems with clean solutions | Problem solvers |
images |
🖼 Assets used in documentation | Internal |
others |
Some other files for the project (not needed for using repo) | Internal |
- Start with the Kotlin Language Guide
- Try modifying and running Kotlin examples
- Read each module like a book, complete exercises
- Explore algorithms and data structures
- Benchmark and expand implementations
- Tackle LeetCode challenges
- Improve guide modules
- Add test coverage
- Add new LeetCode problems
- Add new algorithms
- Add new Data Structures
We’re building a full-scale beginner-friendly Kotlin tutorial, structured like a book — with theory, examples, and exercises.
Go beyond algorithms — master Kotlin as a real-world language.
| Module | Status |
|---|---|
| Syntax & Structure | ✅ Started |
| Variables and Types | ✅ Finished |
| Functions | ✅ Started |
Control Flow (if, when, loops) |
🔜 Planned |
| Null Safety | 🔜 Planned |
| Object-Oriented Kotlin | 🔜 Planned |
| Collections & Lambdas | 🔜 Planned |
| Coroutines & Concurrency | 🔜 Planned |
| Kotlin Multiplatform | 🔜 Planned |
| Kotlin Ecosystem & Tooling | 🔜 Planned |
Each module includes:
- 📘 Markdown-based theory with clear examples
- 💡 Runnable Kotlin examples with comments
- ✍️ Practice tasks and mini-projects
- 📎 Reference links to official docs
📍 Location: src/main/kotlin/kotlinBasics/core/
Coming soon:
- 🧠 Type system, functions, nullability
- ✍️ Unit tests and automated feedback for exercises
- 📈 Performance analysis and Big-O discussions
- 💻 Real-world mini-projects
We love collaboration! You can:
- Suggest improvements to the guide
- Add examples or exercises
- Solve or improve existing LeetCode problems
- Improve documentation or add tests
- Or just ⭐ the repo to show support!
For feedback, contributions or questions –
📧 khnartem@gmail.com
Happy learning and clean coding!
— From Kotlin, with 💛
