Chapter 3: Understanding Programming Paradigms in Kotlin

1. What is a programming paradigm?

• A programming paradigm is a way of classifying a programming language based on common features or patterns of that language.

2. Can you name three programming paradigms supported by Kotlin?

• Imperative
• Functional
• Object-oriented
• Reactive
• Generic

3. What is the difference between imperative and declarative code?

• Imperative describes "how" to do something. Declarative describes "what" to do.

4. Can you name one declarative programming language?

• SQL

5. What are the three core principles of object-oriented programming?

• Encapsulation
• Polymorphism
• Inheritance

6. What are two core principles of functional programming languages?

• First-class functions
• Pure functions

7. What is reactive programming?

• A style of programming in which computation is done in response to streams of events

8. What is the difference between RxJava and RxKotlin?

• RxKotlin is a set of helper functions meant to extend RxJava to make it more Kotlin idiomatic.