Workshop: From Java to Kotlin

The code contained in this repository is intended to be used for the sake of a workshop demonstration for people willing to move from Java to Kotlin.

It provides code samples written in Java and their equivalent written in Kotlin.

The goal of this repository is NOT to demonstrate a Spring Boot project with great standards. All code is written only for the sake of showcasing differences between the two languages.

Languages versions used in this repository:

• Java: 21
• Kotlin: 2.0.10

The project was bootstrapped with spring initilizr (Spring Boot v3.3.2).

Kotlin in 15 minutes for JVM developers

Here are some resources useful for Java/Scala/Groovy developers.

If you have only 15 minutes to start reading Kotlin code:

Kotlin basics in 15 minutes or Kotlin in 15 minutes by Baeldung

Kotlin Documentation

To help you to start with Kotlin, you can check Kotlin Basics from the official documentation.

Kotlin concepts

Also, you can check the standard library documentation.

Kotlin stdlib documentation

Kotlin and Spring

If you are willing to write Kotlin for a Spring Boot application, both Spring and Spring Boot documentation provide Java and Kotlin samples:

Spring boot documentation