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Learn Kotlin Programming

You're reading from   Learn Kotlin Programming A comprehensive guide to OOP, functions, concurrency, and coroutines in Kotlin 1.3

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Product type Paperback
Published in May 2019
Publisher Packt
ISBN-13 9781789802351
Length 514 pages
Edition 2nd Edition
Languages
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Authors (2):
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Stefan Bocutiu Stefan Bocutiu
Author Profile Icon Stefan Bocutiu
Stefan Bocutiu
Stephen Samuel Stephen Samuel
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Stephen Samuel
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Toc

Table of Contents (21) Chapters Close

Preface 1. Section 1: Fundamental Concepts in Kotlin FREE CHAPTER
2. Getting Started with Kotlin 3. Kotlin Basics 4. Object-Oriented Programming in Kotlin 5. Section 2: Practical Concepts in Kotlin
6. Functions in Kotlin 7. Higher-Order Functions and Functional Programming 8. Properties 9. Null Safety, Reflection, and Annotations 10. Generics 11. Data Classes 12. Collections 13. Testing in Kotlin 14. Microservices with Kotlin 15. Section 3: Advanced Concepts in Kotlin
16. Concurrency 17. Coroutines 18. Application of Coroutines 19. Kotlin Serialization 20. Other Books You May Enjoy

Properties or methods?

Properties are very similar to methods; you end up with a getter/setter method under the hood, as you have already seen. However, methods and properties have different usage patterns. You should view properties as fields on steroids. While they look like fields, the syntax for a property looks like we are dealing with a field; properties provide the flexibility of methods.

A class method represents an action, while a property represents data. Properties should be used like a field and not like an action or behavior. When you want to design your type and define one or more properties, use the following guidelines to decide whether it is suitable to do so:

  • Avoid having complex code in the getter code body. A caller expects a fast return. Definitely do not connect to a database or make a rest call from the property's getter code base.
  • Getting a property...
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