It is a data class, which provides common methods like equals and toString automatically. Otherwise, it acts just like any other class. ... In Java terms, Kotlin classes are final by default.

While modern IDEs can save time by generating these standard methods for you, Kotlin provides a special kind of class, a data class, that doesn’t require implementing these methods within the class.

Java has been a programming stalwart since its inception in 1995, and remains one of the most popular languages for web applications and big data processing, however, Kotlin, a relatively new kid ...

The growth has put Kotlin in second place, albeit well behind Java, but now ahead of Clojure and Scala. Oracle JDK – Java Development Kit – is also losing share to OpenJDK alternatives.