Questions

1. Can you name two programming paradigms that Kotlin supports?
2. Is it true or false that Kotlin requires everything to be contained within classes?
3. What is a top-level function?
4. What are higher-order functions?
5. How do you declare a nullable type in Kotlin?
6. What are the three ways to handle null?
7. Is it true or false that Kotlin code can't be used from Java code?