Why there is red line on myPhone.something1.something() ? -something1- - kotlin

Question

fun main() {
val myPhone = Myphone()
myPhone.phoneOn()
myPhone.onClick()
myPhone.onTouch()
myPhone.openApp()
myPhone.closeApp()
myPhone.brightMax()
myPhone.Something1.something()
}
interface Application {
var appName: String
var x1: Int
fun something()
fun brightMax() {
println("Brightness level is on Max!")
}
fun openApp() {
println("$appName is opening!")
}
fun phoneOn() {
println("The phone is ON")
}
fun onClick() {
println("App is running")
}
fun closeApp() {
println("${Myphone.Something1.appName} App is closed!")
}
}
interface Button {
val x: Int
var helloMessage: String
fun brightMax() {
println("Brightness is on $x")
}
fun phoneOn() {
println("Power on button was pressed!")
}
fun onClick()
fun onTouch() {
println("The screen was touched!")
}
}
class Myphone: Button, Application {
override fun something() {
println("Doing something")
}
object Something1 : Application {
override var x1: Int = 100
override var appName: String = "Instagram"
override fun something() {
println("He wants to die!")
}
}
override var x1: Int = 12
override var appName: String = "Facebook"
override var x: Int = 100
override fun phoneOn() {
super<Application>.phoneOn()
}
override fun brightMax() {
super<Application>.brightMax()
super<Button>.brightMax()
}
override var helloMessage: String = "Hello"
override fun onClick() {
super.onClick()
}
}
I created object inside the class and I can't "call" it back in main function.
Once I did and I can't remember how to solve it again.
Don't blame me because of code. I made it for presentation.
on the 9th line, there is error, why? the something1 has red line in kotlin.
something1.appName - is working perfectly?

Answer 1

You get the error because it's not recommended to access nested objects via instance references. Use Myphone.Something1.something() instead of myPhone.Something1.something().