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Associate-Android-Developer Exam Dumps : Google Developers Certification - Associate Android Developer (Kotlin and Java Exam)

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Google Developers Certification - Associate Android Developer (Kotlin and Java Exam) Questions and Answers

Question 1

What happens when you create a DAO method and annotate it with @Insert?

Example:

@Dao

public interface MyDao {

@Insert(onConflict = OnConflictStrategy.REPLACE)

public void insertUsers(User... users);

}

Options:

A.

Room generates an implementation that inserts all parameters into the database in a single transaction.

B.

Room modifies a set of entities, given as parameters, in the database. It uses a query that matches against the primary key of each entity.

C.

Room removes a set of entities, given as parameters, from the database. It uses the primary keys to find the entities to delete.

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Question 2

SharedPreferences.Editor is an interface used for modifying values in a SharedPreferences object. To mark in the editor that a preference value should be removed, which will be done in the actual preferences once commit() or apply() is called, what method in SharedPreferences.Editor should we use?

Options:

A.

delete(String key)

B.

clear()

C.

remove(String key)

D.

removeAll()

Question 3

What do you want from Room when you create a DAO method and annotate it with @Update?

Example:

@Dao

interface MyDao {

@Update

fun updateUsers(vararg users: User)

}

Options:

A.

Room generates an implementation that inserts all parameters into the database in a single transaction.

B.

Room modifies a set of entities, given as parameters, in the database. It uses a query that matches against the primary key of each entity.

C.

Room removes a set of entities, given as parameters, from the database. It uses the primary keys to find the entities to delete.