For loop with ranges in Kotlin - Mini Project: Build & Apply

For loop with ranges

📖 Scenario: You are helping a small bakery count how many cupcakes they have baked each day over a week.

🎯 Goal: Build a Kotlin program that uses a for loop with a range to count cupcakes baked from day 1 to day 7.

📋 What You'll Learn

Create a variable called totalCupcakes and set it to 0

Create a for loop using day in the range 1 to 7

Inside the loop, add 10 cupcakes for each day to totalCupcakes

Print the final value of totalCupcakes

💡 Why This Matters

🌍 Real World

Counting items or events over a fixed number of days or steps is common in business and daily life.

💼 Career

Understanding loops and ranges helps automate repetitive tasks and process data efficiently in software development.

1

Create the initial variable

Create a variable called totalCupcakes and set it to 0.

Kotlin

var totalCupcakes = 0
// Your code here

Need a hint?

Use var to create a variable that can change.

2

Set up the for loop with range

Create a for loop with variable day that goes from 1 to 7 using a range.

Kotlin

var totalCupcakes = 0
for (day in 1..7) {
    // Your code here
}

Need a hint?

Use 1..7 to create a range from 1 to 7 inclusive.

3

Add cupcakes inside the loop

Inside the for loop, add 10 to totalCupcakes for each day.

Kotlin

var totalCupcakes = 0
for (day in 1..7) {
    totalCupcakes += 10
    // Your code here
}

Need a hint?

Use += to add to the existing value of totalCupcakes.

4

Print the total cupcakes

Write a println statement to print the value of totalCupcakes.

Kotlin

var totalCupcakes = 0
for (day in 1..7) {
    totalCupcakes += 10
}
// Your code here

Need a hint?

Use println(totalCupcakes) to show the total cupcakes baked.