Kotlin Design Patterns and Best Practices by Alexey Soshin

Author:Alexey Soshin
Language: eng
Format: epub
Publisher: Packt Publishing Pvt Ltd
Published: 2021-12-13T00:00:00+00:00

class Bat {

fun screech(message: Message) {

for (i in 1..message.repeat) {

println("${message.pitch} Eeeeeee")

}

}

}

Here, we used enum to describe the different types of pitches and a data class to encapsulate the pitch to be used, as well as how many times the message should be repeated.

Make sure that your messages are immutable. Otherwise, you may experience strange behavior! What if you have sets of different messages you're sending from the same publisher? We could use smart casts to solve this:

interface Message {

val repeat: Times

val pitch: SoundPitch

}

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