JetPack Compose

Which of the following is not a data type in Kotlin?

• String

• Decimal

• Int

• Boolean

In Kotlin, the entrypoint of a program is the _

• println()

• val()

• main()

• return statement

Which of the following variable declarations is valid?

• var hello: Int? = ""

• String "hello" = hello

• val hello = "hello"

• hello: String = "hello"

What does IDE stand for?

• Integrated Development Environment

• Independent Design Environment

• Ideal Developer Environment

• Intelligent Design Environment

What is the purpose of using a virtual device, or emulator, in Android Studio?

• To show a variety of error messages to users

• To experiment with app code safely

• To test your app on a device without having that physical device

• To see what your app looks like in a web browser

___ is a function that is used to define a layout in your app using Composable functions.

• ComponentActivity()

• onCreate()

• DefaultPreview()

• setContent()

Which of the following is false about Compose?

• The Empty Compose Activity template is used to create a simple app.

• Layouts can be viewed in the Preview window, without actually running your app.

• All elements and themes in a Compose app are contained in a Surface.

• Themes, such as GreetingCardTheme allow you to style Composables.

It is considered best practice to declare a variable that will not change using var instead of val.

• True

• False

What is Jetpack Compose?

• A Modern toolkit to develop Android UI

• Toolkit to design libraries

• Database Interface

• Plugin to build APK

What annotation is used to annotate a Composable function?

• @Annotation

• @ComposableFunction

• @Composable

• @Preview