Partition for splitting in Kotlin - Mini Project: Build & Apply

Partition for splitting

📖 Scenario: Imagine you have a list of numbers representing daily temperatures. You want to separate these temperatures into two groups: those that are warm (above a certain threshold) and those that are cool (at or below that threshold).

🎯 Goal: You will create a Kotlin program that uses the partition function to split a list of temperatures into warm and cool days.

📋 What You'll Learn

Create a list of integers called temperatures with the exact values: 15, 22, 8, 30, 18, 5

Create an integer variable called threshold and set it to 20

Use the partition function on temperatures with a condition that checks if a temperature is greater than threshold

Print the two resulting lists with the exact variable names warmDays and coolDays

💡 Why This Matters

🌍 Real World

Partitioning data helps in sorting and organizing information, like separating warm and cool days for weather reports.

💼 Career

Understanding how to split data based on conditions is useful in data analysis, software development, and creating user-friendly applications.

1

Create the list of temperatures

Create a list of integers called temperatures with these exact values: 15, 22, 8, 30, 18, 5

Kotlin

// Create the list of temperatures
// Your code here

Need a hint?

Use listOf to create the list with the exact numbers given.

2

Set the threshold value

Create an integer variable called threshold and set it to 20

Kotlin

val temperatures = listOf(15, 22, 8, 30, 18, 5)
// Create the threshold variable
// Your code here

Need a hint?

Use val threshold = 20 to create the variable.

3

Partition the temperatures

Use the partition function on temperatures with a condition that checks if a temperature is greater than threshold. Store the first list in warmDays and the second list in coolDays

Kotlin

val temperatures = listOf(15, 22, 8, 30, 18, 5)
val threshold = 20
// Use partition to split temperatures
// Your code here

Need a hint?

Use val (warmDays, coolDays) = temperatures.partition { it > threshold } to split the list.

4

Print the warm and cool days

Print the lists warmDays and coolDays exactly using two separate println statements

Kotlin

val temperatures = listOf(15, 22, 8, 30, 18, 5)
val threshold = 20
val (warmDays, coolDays) = temperatures.partition { it > threshold }
// Print warmDays and coolDays
// Your code here

Need a hint?

Use println(warmDays) and println(coolDays) to show the results.