Hands-On Object-Oriented Programming with Kotlin

The private modifier

The preferred private modifier is the most restrictive modifier. When the properties are declared with private access, they are not accessible from outside the class:

private var name : String  

Let's take an example of the Person class and apply the private visibility modifier:

class Person(pName: String, pAge: Int, pHeight : Double ) {      private var name : String = pName     private var age : Int = pAge     private var height : Double = pHeight      init {         require(name.trim().isNotEmpty()) {"Name should not empty"}         require(age > 0 ) {"Age is not correct"}         require(height > 0) {"Height is not correct"}     } }  fun main(args: Array<String>) {     val person = Person("bob",40,6.1) println("Name ${person.name}, Age ${person.age} Height ${person.height}" ...