Head First Kotlin程序设计

212 第

7

章

update code

更新

Recipes

项目

现在你已经学习了如何使用默认参数值以及重载方法，让我们

更新一下

Recipes

项目代码。

请更新Recipes.kt文件中的代码版本，使其与如下代码一致（更

改的代码以粗体显示）：

data class Recipe(val title: String,

val mainIngredient: String,

val isVegetarian: Boolean = false,

val difficulty: String = "Easy") {

}

class Mushroom(val size: Int, val isMagic: Boolean) {

constructor(isMagic_param: Boolean) : this(0, isMagic_param) {

//Code that runs when the secondary constructor is called

}

}

fun findRecipes(title: String = "",

ingredient: String = "",

isVegetarian: Boolean = false,

difficulty: String = "") : Array<Recipe> {

//Code to find recipes

return arrayOf(Recipe(title, ingredient, isVegetarian, difficulty)) ...