Why Android dominates mobile market share in Android Kotlin - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the Android market share percentage.

Android Kotlin

val marketShare = 72.2
println("Android market share is $[1]%")

Drag options to blanks, or click blank then click option'

AandroidShare

BmarketShare

C72.2

D"marketShare"

Attempts:

3 left

💡 Hint

Common Mistakes

Using quotes around the variable name prints the name, not the value.

Using an undefined variable name causes an error.

Use the variable marketShare to print the actual value, not a string literal.

2fill in blank

medium

Complete the code to create a list of Android advantages.

Android Kotlin

val advantages = listOf("Open Source", [1], "Wide Device Range")

Drag options to blanks, or click blank then click option'

A"Limited Apps"

BCustomizable

C"Customizable"

D"Expensive"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around string elements.

Using invalid variable names instead of strings.

List elements must be strings with quotes.

3fill in blank

hard

Fix the error in the code that checks if Android is dominant.

Android Kotlin

val marketShare = 72.2
val isDominant = marketShare [1] 50
println("Is Android dominant? $isDominant")

Drag options to blanks, or click blank then click option'

A>

B==

C<

D=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=' instead of '==' or comparison operators.

Using '<' which checks the opposite condition.

Use '>' to check if marketShare is greater than 50.

4fill in blank

hard

Fill both blanks to create a map of Android features and their benefits.

Android Kotlin

val features = mapOf("Open Source" to [1], "Customizable" to [2])

Drag options to blanks, or click blank then click option'

A"Free to use"

B"Limited"

C"Flexible UI"

D"Expensive"

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up benefits with negative words.

Using incorrect syntax for mapOf values.

Open Source means free to use; Customizable means flexible UI.

5fill in blank

hard

Fill all three blanks to filter Android devices with screen size over 6 inches.

Android Kotlin

val devices = listOf(5.5, 6.1, 6.5, 5.8)
val largeScreens = devices.filter { it [1] [2] } // inches
println("Large screens: $[3]")

Drag options to blanks, or click blank then click option'

A>

B6

ClargeScreens

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' for filtering.

Printing the wrong variable name.

Filter devices where size > 6 and print the filtered list.