Learn Kotlin: Functions and Classes

Dive into the world of functions and classes in Kotlin and learn how to write and implement ones of your own.
Continue your Kotlin learning journey with Learn Kotlin: Functions and Classes.
Learn how to create and call user-designed functions in your Kotlin programs. Get introduced to the world of object-oriented programming in Kotlin and learn how to create classes and objects and learn how to create recursive functions.



### Skills you’ll gain
- Create and call functions
- Create constructors
- Write recursive functions

### Notes on Prerequisites
We recommend that you complete [Learn Kotlin: Collections and Loops](https://www.codecademy.com/learn/learn-kotlin-collections-and-loops) before completing this course.

• Functions: Learn how to create and call user-designed functions in your Kotlin programs!
• Lesson: Functions
• Quiz: Functions
• Project: DIY Functions
• Article: Recursion
• Classes: Get introduced to the world of object-oriented programming in Kotlin and learn how to create classes and objects.
• Lesson: Classes
• Quiz: Classes
• Project: Codey's Calculator
• Informational: Next Steps