Kotlin Compact
Minimum price
Suggested price

Kotlin Compact

for Java professionals

About the Book

In compact chapters, concentrating on the essentials, you'll get to know Kotlin within a few afternoons or some subway rides, and you'll soon be able to use it to write your own programs and apps.

"Kotlin Compact" is officially endorsed by JetBrains, the creators of Kotlin itself, on their "books about Kotlin" page!

As the title suggests, "Kotlin Compact" is not explicitly an all-encompassing work on Kotlin. Rather, it focuses on the necessary foundations and best features Kotlin has to offer, and which are most valuable when getting started with Kotlin development.

  • Share this book

  • Categories

    • Computers and Programming
    • Java
    • Software Engineering
    • Non-Fiction
  • Feedback

    Email the Author(s)

About the Author

Thorsten Schleinzer
Thorsten Schleinzer

My name is Thorsten Schleinzer, I am a graduate in Media Information Technology and have been a professional software developer and architect for over 20 years.

For a long time I have been working intensively with different programming languages.

I started with BASIC, got to C/C++ via Pascal/Delphi & Assembler and finally arrived at Java.

Although I've been developing with Java since its version 1.2, I've been working with or am still using several other languages: C#, PHP, JavaScript/TypeScript, Ruby, Dart, Lua, Scala, and a few more.

But it was only with Kotlin that a new language was able to fully delight me and convince me of a change.

Table of Contents

  • About the author
  • Quick facts about Kotlin
  • Understanding Kotlin code
  • Declaring variables
  • Classes and objects
  • Properties of classes
  • Java interoperability
  • No semicolon necessary
  • No new necessary
  • No checked exceptions, runtime exceptions only
  • No primitives (int, float, …)
  • Null safety
  • Equality and identity
  • Default arguments
  • Named arguments
  • String interpolation
  • Extension functions
  • Scoping functions
  • if expression
  • Operator overloading
  • Kotlin has much more to offer

The Leanpub 60-day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

See full terms

80% Royalties. Earn $16 on a $20 book.

We pay 80% royalties. That's not a typo: you earn $16 on a $20 sale. If we sell 5000 non-refunded copies of your book or course for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earnedover $12 millionwriting, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub