Lazy initialization

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val foo : Int by lazy { 1 + 1 }
println(foo)

The example prints 2.

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Delegated properties:

* Delegated properties

* Observable properties

* Custom delegation

* Lazy initialization

* Map-backed properties

* Delegate Can be used as a layer to reduce boilerplate

Table Of Contents

0 Getting started with Kotlin

1 Extension Methods

2 Java 8 Stream Equivalents

3 Interfaces

4 Generics

5 Functions

6 Null safety

7 Idioms

8 Enum

9 Reflection

10 Configuring Kotlin build

11 Conditional Statements

12 Loops

13 Logging

14 Annotations

15 Class Inheritance

16 Arrays

17 Vararg Parameters In Functions

18 Basic Lambdas

19 Type-Safe Builders

20 Kotlin Caveats

21 JUnit

22 Exceptions

23 Strings

24 Regex

25 Collections

26 Type aliases

27 Kotlin Android Extensions

28 Visibility Modifiers

29 DSL Building

30 Kotlin for Java Developers

31 Ranges

32 RecyclerView

33 Singletons

34 Delegated properties

35 Class Delegation

36 Basics of Kotlin

37 coroutines

38 Contributors