Before we start our journey, we will answer the question from the chapter title--Why Kotlin? Kotlin is a new programming language developed by JetBrains, the company that developed IntelliJ IDEA. Kotlin is concise and understandable, and it compiles everything to bytecode just like Java. It can also compile to JavaScript or native!
Kotlin comes from professionals of the industry and solves problems programmers are facing every day. It is easy to start and adopt! IntelliJ comes with a Java to Kotlin converter tool. You can convert Java code file by file and everything will still work flawlessly.
It is interoperable and can use any existing Java Framework or library. The interoperability is impeccable and does not require wrappers ...
