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Android Kotlin for Java Developers Hello Kotlin! The Card Class: Kollector's Edition

Posted by Sourabh Pal
Sourabh Pal
210 Points

Property

The property in Kotlin is always just getters and setters? Or the property means all functions in a class?

1 Answer

Ben Deitch
STAFF
Ben Deitch
Treehouse Teacher
Ben Deitch
Ben Deitch
Treehouse Teacher

It's just the getters and setters. For example, here I'm creating a property named 'x':

var x: Int = 100

However, behind that code is literally this:

var x: Int = 100
        get() {
            return field
        }
        set(value) {
            field = value
        }

So when you create a property in Kotlin, typically it'll have a backing field named 'field'. You don't have to create this field; in fact you can't even really access it. But it's there, and it's used to store the value of the property.

Sourabh Pal
Sourabh Pal
210 Points

Thank you for clearing that up Ben.