Chapter 1, The Power of Kotlin, is the introductory chapter. It covers why Kotlin is quickly becoming a force to reckon with. Kotlin positions itself as the smart choice to the various stakeholders, such as the programmer, the manager, and the businesses. The chapter looks at the technology and business reasons that fuel the adoption of Kotlin.
Chapter 2, Geospatial Messenger – Spring Boot, covers the use of Spring Boot technology to create robust server-side applications. Spring is one of the most well-known and well-respecte
d server-side frameworks in the Java space, and Spring Boot is its less verbose and more powerful version. This chapter covers how a Geospatial Messenger application is created with Spring Boot technology using the Kotlin language.
Chapter 3, Social Media Aggregator Android App, is using Kotlin to create native Android apps. With Google officially recognizing Kotlin's use to develop Android apps, this is the most widespread application to use the Kotlin language. Today's mobile apps hardly work in isolation. They work with a server. This common scenario is illustrated with a social media aggregator app.
Chapter 6, News Feed – REST API, covers the use of Kotlin specifically to create REST services. We will develop a News Feed application with the Ktor framework, which is a leading Kotlin-only framework used for server-side applications.
Chapter 7, CSV Reader in Kotlin Native, explores a bleeding edge technology—Kotlin Native—which is about compiling Kotlin code directly to platform-specific executables. Although not mature, Kotlin Native is worth watching as it quickly marches to its promise of becoming the only language to create native applications across disparate platforms such as iOS and Raspberry Pi. In this chapter, a small CSV reader utility is built with Kotlin/Native.
Chapter 8, Dictionary Desktop Application - Tornado FX, is about using Kotlin to create a cross-platform desktop application based on Java technology. Tornado FX is a Kotlin-specific framework, which is based on the most advanced Java GUI framework, that is, Java FX. This chapter illustrates the power of Tornado FX with a dictionary application.