`class Demo(data:String)` `data` will only be acc...

# android

[leosan]

class Demo(data:String) data will only be accessible in the constructor of this class
class Demo(val data:String) you are also creating a data field with its getter and it will be accessible for the entire class
it can also be : class Demo(var data:String) if you want getter and setter or class Demo (private val data: String) if the field shouldn’t be public
A better way to understand that is, create both classes
in your Android Studio go to the menu Tools> Kotlin > Show Kotlin Bytecode and the click on the button Decompile to see the generated java source code… it will make more sense