Java SE 11 Programmer II: 1Z0-816

var numbers = List.of(0,1,2,3,4,5,6,7,8,9);

You want to calculate the average of numbers.

Which two codes will accomplish this? (Choose two.)

A. double avg = numbers.stream().parallel().averagingDouble(a -> a);

B. double avg = numbers.parallelStream().mapToInt (m -> m).average().getAsDouble();

C. double avg = numbers.stream().mapToInt (i -> i).average().parallel();

D. double avg = numbers.stream().average().getAsDouble();

E. double avg = numbers.stream().collect(Collectors.averagingDouble(n -> n));

Given the contents:

MessageBundle.properties file:

message=Hello

MessageBundle_en.properties file:

message=Hello (en)

MessageBundle_US.properties file:

message=Hello (US)

MessageBundle_en_US.properties file:

message=Hello (en_US)

MessageBundle_fr_FR.properties file:

message=Bonjour

and the code fragment:

Locale.setDefault(Locale.FRANCE);

Locale currentLocale = new Locale.Builder().setLanguage("en").build();

ResourceBundle messages = ResourceBundle.getBundle("MessageBundle", currentLocale);

System.out. println(messages.getString("message"));

Which file will display the content on executing the code fragment?

A. MessageBundle_en_US.properties

B. MessageBundle_en.properties

C. MessageBundle_fr_FR.properties

D. MessageBundle_US.properties

E. MessageBundle.properties

Which interface in the java.util.function package can return a primitive type?

A. ToDoubleFunction

B. Supplier

C. BiFunction

D. LongConsumer