Android - Quiz 12

What happen when call method startService() with the same intent 2 times?

• ARN
• onStartCommand() is called 2 times
• Nothing happen
• Service is destroyed

When to use Setter Injection in the Dependency Injection pattern?

• Provide optional dependency
• Provide mandatory dependency
• Provide run-time dependency
• All of above

Which of these type parameters is used for a generic methods to return and accept any type of object?

• K
• N
• T
• V

What is the range of short data type in Java?

• (-128 to 127)
• (-32768 to 32767)
• (-2147483648 to 2147483647)
• None of the mentioned

What is different between DataBinding and FindViewById method?

• DataBinding generate binding class at runtime and findViewById run at compile time.
• DataBinding generate binding class at compile time and findViewById run at runtime.
• DataBinding and findViewById run at compile time.
• DataBinding and findViewById run at runtime

What is different between DataBinding and FindViewById method?

• DataBinding generate binding class at runtime and findViewById run at compile time.
• DataBinding generate binding class at compile time and findViewById run at runtime.
• DataBinding and findViewById run at compile time.
• DataBinding and findViewById run at runtime

Hilt is integrated with Jetpack libraries, Android framework classes, and automatically generates and provides all of the following except ______?

• Components for Android framework classes
• Manual management of Android class lifecycles
• Scope annotations
• Predefined bindings and qualifiers

How to share viewmodel between fragment-fragment, activity-fragments?

• Init view model using "by viewmodels()" function of fragment-ktx
• Init view model using "by activityViewModels()"" function of fragment-ktx
• Init view mode by using "ViewModelProvider(fragment context).get"
• Init view model by using "ViewModelProvider(activity context).get"

Which of the following statements is correct?

• Overriding implements Runtime Polymorphism whereas Overloading implements Compile time polymorphism.
• Overriding implements Complie Polymorphism whereas Overloading implements Runtime polymorphism.
• Both Overloading and Override are compile time polymorphism
• Both Overloading and Override are Runtime polymorphism

What is true about threading?

• run() method calls start() method and runs the code
• run() method creates new thread
• run() method can be called directly without start() method being called
• start() method creates new thread and calls code written in run() method