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The Kotlin Programming Language

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The Kotlin Programming Language ,[object Object],[object Object]
What is JetBrains?
What is Kotlin? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Motivation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Design Goals ,[object Object],[object Object],[object Object],[object Object],[object Object]
Tooling ,[object Object],[object Object],[object Object]
Innovation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Features: Traditional ,[object Object],[object Object],[object Object],[object Object],[object Object]
Features: Distinguishing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hello, world! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hello, <names>! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hello, <names>! (Faster version) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hello, <names>! (Realistic version) ,[object Object],[object Object],[object Object],[object Object]
join() and forit() ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
Null-safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Implicit casts and When ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More on when-expressions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Classes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Traits ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Disambiguation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
First-class Delegation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Class objects (I) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Class objects (II) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Class objects (III) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Reified generics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
First-class functions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Higher-order functions ,[object Object],[object Object]
Syntax sugar ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
“ LINQ” style syntax ,[object Object],[object Object],[object Object],[object Object]
Lock example (I) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lock example (II) ,[object Object],[object Object],[object Object],[object Object]
Lock example (III) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Extension functions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Builders in Groovy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Builders in Kotlin ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Builders: Implementation (I) ,[object Object],[object Object]
Builders: Implementation (II) ,[object Object],[object Object]
Builders: Implementation (III) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Builders in Kotlin ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Q&A Dmitry Jemerov [email_address]

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The Kotlin Programming Language

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  • 19. Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
  • 20. Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
  • 21. Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
  • 22. Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
  • 23. Mapping to Java types Kotlin Java Kotlin Any Object Any? Unit void Unit Int int Int Int? Integer Int? String String String? Foo Foo Foo? Array<Foo> Foo[] Array<Foo?>? IntArray int [] IntArray? GEN LOAD
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  • 52. Q&A Dmitry Jemerov [email_address]