Apresentação para trabalhar com estrutura de dados utilizando Kotlin segue o github do código da apresetação https://github.com/rviannaoliveira/PresentationKitToolsKotlin

1. Kit de ferramentas no Kotlin
Rodrigo Vianna
@rviannaoliveira

2. Motivação

3. Coleções em java
• List
• Set
• Map
• Collections
• Iterable
• ArrayList
• LinkedList
• HashSet
• TreeSet
• HashMap
• TreeMap
Interfaces Classes

4. Coleções em java
Comparator/Comparable
HashCode
Equals

5. Kotlin
var = Mutavel ( Mutable )
val = Imutável ( Immutable )

6. Kotlin
var pode ter get e setters?

7. Kotlin
val pode ter get e setters?

8. Kotlin
"Immutable objects are particularly useful in concurrent
applications. Since they cannot change state, they cannot
be corrupted by thread interference or observed in an
inconsistent state."
https://docs.oracle.com/javase/tutorial/essential/concurrency/immutable.html

9. Mutáveis ( Mutable )
•MutableIterable
•MutableCollection
•MutableList
•MutableSet
•MutableMap
Imutáveis ( Immutable )
•Iterable
•Collection
•List
•Set
•Map
Coleções

10. val list: kotlin.collections.List<String> = java.util.ArrayList()
Lembrete: Collection no Kotlin não possui métodos add e remove
Kotlin

11. Array
val heroes = arrayOf("Captain America", "Iron
Man", "Spider Man")
heroes[2] = "Hulk"
assertEquals("Hulk", heroes[2])

12. Sintaxe
Java 8
Streams API
Java 6 +- 7
Kotlin
RxJava

13. Extensões
fun String.separeSpaceWithComam():List<String>{
return this.split(" ",",")
}

14. Tipo de Extensões
Filtros
Agregação
Map
Geração
Ordenação

15. Tipos de Functions
Aggregate operations
any
all
count
fold/foldRight
*forEach/forEachIndexed
*max/maxBy
min/minBy
none
reduce/reduceRight
sumBy
Filter operations
drop/dropWhile/dropLastWhile
*filter/filterNot/filterNotNull
slicetake/takeLast/takeWhile
*distinct
distinctBy
Mappingoperantions
flatMapgroupByap/mapIndexed/mapNotNul
Generation operations
mergepartition
*pluszip
Ordering
operations
*reverse
*sort/sortBy/sortDescending/sortDes

16. Montar meme 1

17. Standard functions
/**
* Calls the specified function [block] with `this` value as its
receiver and returns `this` value.
*/
@kotlin.internal.InlineOnly
public inline fun <T> T.apply(block: T.() -> Unit): T { block();
return this }
let with run apply also

18. Montar meme 2
https://ask.ericlin.info/post/003-kotlin-std-method-differences/

19. Montar meme 2

20. Conclusão

21. Referências
https://www.codementor.io/jussihallila/introduction-to-kotlin-part-2-9oybmr9rb
https://docs.oracle.com/javase/tutorial/essential/concurrency/immutable.html
https://www.tutorialspoint.com/java/java_collections.htm
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/
https://kotlinlang.org/docs/reference/collections.htm
https://hackernoon.com/kotlin-a-deeper-look-8569d4da36f
https://android.jlelse.eu/kotlin-collections-example-c1c446a4846c
http://beust.com/weblog/2015/10/30/exploring-the-kotlin-standard-library/

22. Rodrigo Vianna
OBRIGADO
https://github.com/rviannaoliveira
@rviannaoliveira
https://github.com/rviannaoliveira/PresentationKitToolsKotlin

23. https://www.99jobs.com/zap-s-a-internet