application-state-3.kt

fun turnOnTheTeaPot(teapotService: TeaPotService) : Boolean {
      teaPotService.turnOn()
      return true
}

fun turnOffTheTeaPot(teapotService: TeaPotService) : Boolean {
      teaPotService.turnOff()
      return false
}

fun main() {
    val turnOnTheTeaPot = true
    val teaPotService = TeaPotService()
    val teaPotTurnedOn = if (turnOnTheTeaPot) {
        turnOnTheTeaPot(teaPotService)
    } else {
        turnOffTheTeaPot(teaPotService)
    }
}