Kotlin Function: Personalized greeting message for user

Last update on August 27 2025 12:41:30 (UTC/GMT +8 hours)

Write a Kotlin function that takes a 'name' as an argument and prints a personalized greeting message to the user.

Pre-Knowledge (Before you start!)

• Basic Kotlin Syntax.
• Kotlin Functions.
• Function Parameters.
• String Interpolation.
• Printing Output.

Hints (Try before looking at the solution!)

• Define the Function.
• Print the Greeting.
• Call the Function.
• Test with Different Names.
• Common Errors to Avoid:
  • Forgetting function parameters.
  • Misplacing string interpolation syntax.
  • Not handling empty or special-character inputs.

Sample Solution:

Kotlin Code:

fun welcomeUser(name: String) {
    println("Hello, $name! Welcome!")
}
fun main() {
    val name = "Mateu Odelia"
    welcomeUser(name)
}

Sample Output:

Hello, Mateu Odelia! Welcome!

Explanation:

In the above exercise -

• The "greetUser()" function takes a "name" parameter of type String. It prints a personalized greeting message to the user by concatenating the name with a greeting phrase.
• In the "main()" function, we initialize a variable "name" with the value "Mateu Odelia" and then call the "greetUser()" function, passing the "name" variable as an argument.

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