Repeat function for simple repetition in Kotlin - Mini Project: Build & Apply

Repeat function for simple repetition

📖 Scenario: You want to greet your friends multiple times to make them feel special. Instead of writing the greeting many times, you will use Kotlin's repeat function to say hello several times easily.

🎯 Goal: Build a Kotlin program that uses the repeat function to print a greeting message multiple times.

📋 What You'll Learn

Create a variable called times with the value 3.

Use the repeat function with the variable times to print "Hello, friend!" exactly 3 times.

💡 Why This Matters

🌍 Real World

Repeating actions many times is common in apps, like showing notifications or processing lists.

💼 Career

Understanding how to repeat tasks efficiently helps you write cleaner and shorter code in real projects.

1

Create the times variable

Create a variable called times and set it to 3.

Kotlin

# Create a variable called times and set it to 3
// Your code here

Need a hint?

Use val times = 3 to create the variable.

2

Use repeat to print greetings

Use the repeat function with the variable times to print "Hello, friend!" exactly 3 times.

Kotlin

val times = 3
// Use repeat(times) to print "Hello, friend!" 3 times
// Your code here

Need a hint?

Use repeat(times) { println("Hello, friend!") } to print the message multiple times.

3

Add a message count inside the repeat

Modify the repeat block to print the message number before each greeting, like "Greeting 1: Hello, friend!".

Kotlin

val times = 3
repeat(times) {
    // Print message number and greeting
    // Your code here
}

Need a hint?

Use repeat(times) { count -> println("Greeting ${count + 1}: Hello, friend!") } to include the count.

4

Print the final greetings

Run the program to print the greetings with their numbers using println.

Kotlin

val times = 3
repeat(times) { count ->
    println("Greeting ${count + 1}: Hello, friend!")
}
// Print the greetings above
// Your code here

Need a hint?

Just run the program to see the greetings printed.