Котлин как Java
var myVariable = 42
myVariable = 50
val myConstant = 42
Busy Butterfly
var myVariable = 42
myVariable = 50
val myConstant = 42
val label = "The width is "
val width = 94
val widthLabel = label + width
// The width is 94val apples = 3
val oranges = 5
val fruitSummary = "I have ${apples + oranges} " +
"pieces of fruit."
println("Hello, world!")
val explicitDouble: Double = 70.0
val age = 42
if (age < 10) {
println("You're too young to watch this movie")
} else if (age < 13) {
println("You can watch this movie with a parent")
} else {
println("You can watch this movie")
}const val SYSTEM_DEPRECATED: String = "System is deprecated"