Enum entries iteration in Kotlin - Mini Project: Build & Apply

Enum entries iteration

📖 Scenario: You are creating a simple program to list different types of fruits using an enum in Kotlin. You want to show all the fruit names by going through each enum entry.

🎯 Goal: Build a Kotlin program that defines an enum for fruits and then iterates over all enum entries to print their names.

📋 What You'll Learn

Create an enum class called Fruit with entries APPLE, BANANA, and CHERRY

Create a variable called fruitList that holds all entries of the Fruit enum

Use a for loop with variable fruit to iterate over fruitList

Print each fruit name inside the loop using println(fruit)

💡 Why This Matters

🌍 Real World

Enums are used to represent fixed sets of related constants, like days of the week, colors, or fruit types, making code easier to read and maintain.

💼 Career

Understanding enums and how to iterate over them is important for Kotlin developers working on Android apps, backend services, or any Kotlin-based projects.

1

Create the enum class

Create an enum class called Fruit with entries APPLE, BANANA, and CHERRY.

Kotlin

// Your code here

Need a hint?

Use enum class Fruit { APPLE, BANANA, CHERRY } to define the enum.

2

Get all enum entries

Create a variable called fruitList and assign it the value of Fruit.values() to get all enum entries.

Kotlin

enum class Fruit {
    APPLE, BANANA, CHERRY
}

// Your code here

Need a hint?

Use val fruitList = Fruit.values() to get all enum entries as an array.

3

Iterate over enum entries

Use a for loop with variable fruit to iterate over fruitList.

Kotlin

enum class Fruit {
    APPLE, BANANA, CHERRY
}

val fruitList = Fruit.values()

// Your code here

Need a hint?

Use for (fruit in fruitList) to loop through all fruits.

4

Print each enum entry

Inside the for loop, print each fruit using println(fruit).

Kotlin

enum class Fruit {
    APPLE, BANANA, CHERRY
}

val fruitList = Fruit.values()

for (fruit in fruitList) {
    // Your code here
}

Need a hint?

Use println(fruit) inside the loop to print each fruit name on its own line.