LEARN KOTLIN 2025 Edition

Learn Kotlin 2025
Master Kotlin with Modern Architecture, Coroutines, KMP, Compose, and Professional Backend

This 2025 edition of Learn Kotlin is the complete and updated guide for professionals and students who want to master the Kotlin language with technical depth and practical focus. Expanding and fully refining the content of the previous edition, this manual introduces a new modular structure with optimized chapters, clear explanations, and direct application of concepts in multiple professional contexts.

You will learn to program in Kotlin from scratch to an advanced level, gaining real mastery of its modern applications—mobile, backend, multiplatform, and reactive systems. The book covers everything from language fundamentals to strategic topics such as Kotlin Multiplatform (KMP), Jetpack Compose, coroutines, REST API integration, persistence with Room, automated testing, library publishing, and backend development with Ktor.

Includes:

• Full development environment setup with IntelliJ and Android Studio
• Basic syntax, functions, collections, object-oriented programming, and functional programming
• Concurrency and parallelism with coroutines, async, await, withContext, and Dispatchers
• REST API consumption and publishing with Retrofit, Ktor, and JWT authentication
• Persistence with SQLite and Room, data modeling, and advanced queries
• Unit and integration testing with JUnit 5, MockK, and validation strategies
• Code sharing across Android, iOS, and backend with KMP and expect/actual
• Building modern interfaces with Jetpack Compose and reactive navigation
• Kotlin project publishing to Maven Central with Dokka and professional versioning
• Scalable architecture, code standards, design patterns, and industry best practices

By the end, you will be fully prepared to work professionally with Kotlin in any scenario—mobile, backend, distributed systems, multiplatform, and modern projects based on coroutines, reactive architecture, and real integration with cutting-edge tools.

kotlin, kotlin multiplatform, android development, coroutines, ktor, compose, rest api, room, modern architecture, functional programming, automated testing, maven publishing, dokka, kotlin backend, advanced kotlin.