Author: Anonymous

What is the purpose of an annotation in Kotlin?

Which item below contains the correct annotations for a function that allows the app to be previewed in Android Studio design pane?

Like Java, Kotlin supports the += and -= operators. Unlike Java, Kotlin does not support the ++ and — operators.

According to Google, what does it mean that Android development is “Kotlin-first”?

What does this output? var cars = 10 cars += 5 println(“There are $cars cars”)  

In Kotlin, the following function call is valid fun calculateTax(price: Double, rate: Double, includeLocal: Boolean ): Double { … } calculateTax(9.99, includeLocal = true, rate = 0.08)

What is wrong with this code? var size: Int = 3.14

Kotlin is _____________ compatible with Java.

Which of the following best describes the UI hierarchy in Android’s Jetpack Compose?

In the code below, what is the purpose of onCreate()? class MainActivity : ComponentActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContent { … } } }