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Mastering Kotlin
book

Mastering Kotlin

by Nate Ebel
October 2019
Intermediate to advanced
434 pages
11h 54m
English
Packt Publishing
Content preview from Mastering Kotlin

Chapter 7: Crossing Over – Working across Java and Kotlin

  1. Is it true or false that it's possible to call Kotlin code from Java?
  • True
  1. Is it true or false that it's possible to call Java code from Kotlin?
  • True
  1. Is it true or false that Kotlin's strict null typing is persisted when calling into Java?
  • False
  1. What are the two ways of managing the lack of static methods in Kotlin?
  • Companion objects
  • Top-level functions
  • Extension functions
  1. How are top-level functions accessed from Java?
  • Using a generated static class that takes the form of <filename>Kt.<nameOfFunction>()
  1. How are extension functions accessed from Java?
  • Using a generated static method that takes the receiver class as the first parameter of the method
  1. Is it true ...
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Publisher Resources

ISBN: 9781838555726