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Hands-On Object-Oriented Programming with Kotlin

You're reading from   Hands-On Object-Oriented Programming with Kotlin Build robust software with reusable code using OOP principles and design patterns in Kotlin

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Product type Paperback
Published in Oct 2018
Publisher Packt
ISBN-13 9781789617726
Length 370 pages
Edition 1st Edition
Languages
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Authors (2):
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Abid Khan Abid Khan
Author Profile Icon Abid Khan
Abid Khan
Igor Kucherenko Igor Kucherenko
Author Profile Icon Igor Kucherenko
Igor Kucherenko
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Toc

Table of Contents (14) Chapters Close

Preface 1. Getting Started with Kotlin FREE CHAPTER 2. Introduction to Object-Oriented Programming 3. The Four Pillars of Object-Oriented Programming 4. Classes - Advanced Concepts 5. Data Collection, Iterators, and Filters 6. Object-Oriented Patterns in Kotlin 7. Coroutines - a Lightweight Thread? 8. Interoperability 9. Regular Expression and Serialization in Kotlin 10. Exception Handling 11. Testing in Object-Oriented Programming with Kotlin 12. Assessments 13. Other Books You May Enjoy

Class properties

In Kotlin, each class property is considered a first-class citizen, which we discussed in the Properties – A first class citizen section of Chapter 2, Introduction to Object-Oriented Programming. In this section, we will learn more about properties and how to define the getter and setter functions that are explicitly provided by Kotlin. Let's create a Person class with two properties, name and age:

class Person {
var name: String = ""
var age : Int = 0
}

Create an instance of the Person class. Assign some values to each property and display the values on the screen:

fun main(args: Array<String>) {
val abid = Person()

abid.name = "Abid Khan"
abid.age = 40

println(abid.name)
println(abid.age)
}

When we assign a value to a class property, such as abid.name = "Abid Khan", or get a value...

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