Kotlin program: Find out your Kotlin version

Last update on February 04 2025 06:25:48 (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.

Kotlin Editor:

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