Multiline strings with trimIndent in Kotlin - Mini Project: Build & Apply

Multiline strings with trimIndent

📖 Scenario: You are creating a simple Kotlin program to display a formatted message using multiline strings. Multiline strings help keep text readable and maintain the intended layout.

🎯 Goal: Build a Kotlin program that uses a multiline string with trimIndent() to remove extra indentation and print a clean, formatted message.

📋 What You'll Learn

Create a multiline string variable with indented text

Use trimIndent() to remove common leading whitespace

Print the cleaned multiline string

💡 Why This Matters

🌍 Real World

Multiline strings with trimIndent are useful for writing formatted text blocks like messages, SQL queries, or JSON in Kotlin code without extra spaces.

💼 Career

Understanding multiline strings and trimming indentation helps write cleaner, more readable Kotlin code, a skill valuable for Android and backend Kotlin developers.

1

Create a multiline string variable

Create a multiline string variable called message with the following exact content including indentation: """ Hello, Welcome to Kotlin programming! Enjoy learning. """

Kotlin

# Create the multiline string variable 'message' with the given indented text
# Your code here

Need a hint?

Use triple quotes """ to start and end the multiline string.

2

Apply trimIndent() to the multiline string

Add trimIndent() to the message variable to remove the common leading whitespace from each line.

Kotlin

val message = """
    Hello,
    Welcome to Kotlin programming!
    Enjoy learning.
""".trimIndent()
# Your code here

Need a hint?

Call trimIndent() immediately after the multiline string.

3

Print the trimmed multiline string

Write a println statement to print the message variable.

Kotlin

val message = """
    Hello,
    Welcome to Kotlin programming!
    Enjoy learning.
""".trimIndent()

# Print the message variable
# Your code here

Need a hint?

Use println(message) to display the text.

4

Run and verify the output

Run the program and verify that the output matches exactly: Hello, Welcome to Kotlin programming! Enjoy learning.

Kotlin

val message = """
    Hello,
    Welcome to Kotlin programming!
    Enjoy learning.
""".trimIndent()

println(message)
# Run the program and check the output

Need a hint?

The printed text should have no leading spaces on each line.