LLaySoftware Academy
Kotlin Language

Kotlin fundamentals

Beginner·18 min read
kotlin
val name = "LaySoftware"
var count = 0
val label = name ?: "Unknown"

fun add(a: Int, b: Int): Int = a + b
  • Prefer val when a reference does not need reassignment.
  • Use nullable types explicitly.
  • Use data classes for value-like models.
  • Use sealed classes for finite UI states.
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