Kotlin program: Find out your Kotlin version

Last update on August 27 2025 12:37:48 (UTC/GMT +8 hours)

Write a Kotlin program to find out what version of Kotlin you are using.

Pre-Knowledge (Before you start!)

Basic Kotlin Syntax: Familiarity with writing and running Kotlin programs.
Kotlin Functions: Understanding the structure of the main() function, which serves as the entry point of a Kotlin program.
Variables in Kotlin: Knowledge of declaring variables using val for immutable values.
KotlinVersion Class: Awareness of the KotlinVersion.CURRENT property, which provides the current version of Kotlin being used.
String Templates: Understanding how to use string templates (e.g., ${variable}) to embed variable values within strings.
Printing Output: Ability to use the println() function to display output on the screen.

Hints (Try before looking at the solution!)

Use the main() Function: Start by defining the main() function, which is the starting point of any Kotlin program.
Access Kotlin Version: Use the KotlinVersion.CURRENT property to retrieve the current Kotlin version and store it in a variable.
- Example: val kotlinVersion = KotlinVersion.CURRENT.
Print the Version: Use the println() function to display the Kotlin version. Use a string template to include the version in the output message.
- Example: println("Kotlin Version: ${kotlinVersion}").
Run the Program: Execute the program to see the Kotlin version displayed on the screen.
Common Errors to Avoid:
- Forgetting to use string templates (${}) when embedding the variable in the output string.
- Misplacing parentheses or quotes, leading to syntax errors.

Sample Solution:

Kotlin Code:

fun main() {
    val kotlinVersion = KotlinVersion.CURRENT
    println("Kotlin Version: ${kotlinVersion}")
}

Sample Output:

Kotlin Version: 1.8.21

Note:

When you run this program, it will output the version of Kotlin you are using, such as:
Kotlin Version: 1.5.30

The actual version number may vary depending on your Kotlin installation.

Go to:

PREV : Print 'Hello' and name on separate lines.
NEXT : Display current date and time.

Kotlin Editor:

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