Kotlin Android Syntax (Collections, Class, Instance)

Using collections

Iterating over a collection:

for (item in items)

{

    println(item)

}

Checking if a collection contains an object using in operator:

when

{

    "orange" in items -> println("juicy")

    "apple" in items -> println("apple is fine too")

}

Using lambda expressions to filter and map collections:

fruits

.filter { it.startsWith("a") }

.sortedBy { it }

.map { it.toUpperCase() }

.forEach { println(it) }

Creating basic classes and their instances:

val rectangle = Rectangle(5.0, 2.0) //no 'new' keyword required

val triangle = Triangle(3.0, 4.0, 5.0)

Hello Reader

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Thank you Safe & Happy Coding. :)