Android Development with Kotlin

Property access syntax between Kotlin and Java

Another big improvement introduced by Kotlin is the way to access properties. In Java, we access a property using the corresponding method (setSpeed/getSpeed). Kotlin promotes property access syntax, which is a more expressive way of accessing properties. Let's compare both approaches, assuming we have a simple Car class that has a single speed property:

    class Car (var speed: Double) 
 
    //Java access properties using method access syntax 
    Car car = new Car(7.4) 
    car.setSpeed(9.2) 
    Double speed = car.getSpeed(); 
 
    //Kotlin access properties using property access syntax 
    val car: Car = Car(7.4) 
    car.speed = 9.2 
    val speed = car.speed 

As we can see, in Kotlin there is no need to add get or set prefixes and ...