Oracle passcert 1z0-809 Vce Exam Download by Melania q196 vce pdf

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Exam Name:	Java SE 8 Programmer II
Exam Code:	1z0-809 Dumps
Vendor:	Oracle	Certification:	Java SE
Questions:	196 Q&A's	Shared By:	melania

Question 8

Given the code fragment:

Questions 8

Which code fragment, when inserted at line 7, enables printing 100?

Options:

Function funRef = e –> e + 10;Integer result = funRef.apply(value);

IntFunction funRef = e –> e + 10;Integer result = funRef.apply (10);

ToIntFunction funRef = e –> e + 10;int result = funRef.applyAsInt (value);

ToIntFunction funRef = e –> e + 10;int result = funRef.apply (value);

Discussion

Question 9

Given the code fragment:

List list1 = Arrays.asList(10, 20);

List list2 = Arrays.asList(15, 30);

//line n1

Which code fragment, when inserted at line n1, prints 10 20 15 30?

Options:

Stream.of(list1, list2).flatMap(list -> list.stream()).forEach(s -> System.out.print(s + “ “));

Stream.of(list1, list2).flatMap(list -> list.intStream()).forEach(s -> System.out.print(s + “ “));

list1.stream().flatMap(list2.stream().flatMap(e1 -> e1.stream()).forEach(s -> System.out.println(s + “ “));

Stream.of(list1, list2).flatMapToInt(list -> list.stream()).forEach(s -> System.out.print(s + “ “));

Discussion

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Question 10

Given:

Questions 10

and

Questions 10

Which interface from the java.util.function package should you use to refactor the class Txt?

Options:

Consumer

Predicate

Supplier

Function

Discussion

Question 11

Given the code fragment:

Questions 11

You have been asked to define the ProductCode class. The definition of the ProductCode class must allow c1 instantiation to succeed and cause a compilation error on c2 instantiation.

Which definition of ProductCode meets the requirement?

Options: