dodalovic

class Hotel {
    val name: String
    val city: String
    val stars: Int
    private var jimIncluded = false

    constructor(name: String, city: String, stars: Int) {
        this.name = name
        this.city = city
        this.stars = stars

dodalovic

package patterns

interface CarService {
    fun doService()
}

interface CarServiceDecorator : CarService

class BasicCarService : CarService {
    override fun doService() = println("Doing basic checkup ... DONE")

dodalovic

package patterns.head_first

class CoffeeMachine {
    var state: CoffeeMachineState
    val MAX_BEANS_QUANTITY = 100
    val MAX_WATER_QUANTITY = 100
    var beansQuantity = 0
    var waterQuantity = 0
    val offState = Off(this)
    val noIngredients = NoIngredients(this)