Take, drop, and chunked in Kotlin - Mini Project: Build & Apply

Using Take, Drop, and Chunked in Kotlin

📖 Scenario: You are working on a Kotlin program that processes a list of daily temperatures recorded over a week. You want to extract parts of this data to analyze specific days and group days into smaller chunks.

🎯 Goal: Build a Kotlin program that uses take, drop, and chunked functions to manipulate a list of temperatures.

📋 What You'll Learn

Create a list of exactly 7 temperatures as integers

Create a variable to hold the number of days to take from the start

Use take to get the first few temperatures

Use drop to skip the first few temperatures

Use chunked to split the list into groups of 3

Print the results exactly as specified

💡 Why This Matters

🌍 Real World

Processing lists of data like temperatures, sales, or scores is common. Using <code>take</code>, <code>drop</code>, and <code>chunked</code> helps you focus on parts of the data or group it for easier analysis.

💼 Career

Many programming jobs require working with lists or arrays. Knowing how to extract and group data efficiently is a useful skill for data analysis, app development, and backend programming.

1

Create the temperature list

Create a list called temperatures with these exact integer values: 23, 25, 22, 20, 24, 26, 21.

Kotlin

# Create the list of temperatures
# Your code here

Need a hint?

Use listOf to create a list with the exact numbers.

2

Set the number of days to take

Create an integer variable called daysToTake and set it to 4.

Kotlin

val temperatures = listOf(23, 25, 22, 20, 24, 26, 21)
# Create the variable daysToTake and set it to 4
# Your code here

Need a hint?

Use val daysToTake = 4 to create the variable.

3

Use take, drop, and chunked

Create three variables: firstDays using temperatures.take(daysToTake), afterDays using temperatures.drop(daysToTake), and chunkedDays using temperatures.chunked(3).

Kotlin

val temperatures = listOf(23, 25, 22, 20, 24, 26, 21)
val daysToTake = 4
# Create firstDays using take(daysToTake)
# Create afterDays using drop(daysToTake)
# Create chunkedDays using chunked(3)
# Your code here

Need a hint?

Use the take, drop, and chunked functions exactly as shown.

4

Print the results

Print firstDays, afterDays, and chunkedDays each on its own line using println.

Kotlin

val temperatures = listOf(23, 25, 22, 20, 24, 26, 21)
val daysToTake = 4
val firstDays = temperatures.take(daysToTake)
val afterDays = temperatures.drop(daysToTake)
val chunkedDays = temperatures.chunked(3)
# Print firstDays, afterDays, and chunkedDays each on a new line
# Your code here

Need a hint?

Use println to print each variable on its own line.