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Oracle Updated 1z0-809 Exam Questions and Answers by gloria

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Oracle 1z0-809 Exam Overview :

Exam Name: Java SE 8 Programmer II
Exam Code: 1z0-809 Dumps
Vendor: Oracle Certification: Java SE
Questions: 208 Q&A's Shared By: gloria
Question 60

Given the code fragment:

UnaryOperator uo1 = s -> s*2;//line n1

List loanValues = Arrays.asList(1000.0, 2000.0);

loanValues.stream()

.filter(lv -> lv >= 1500)

.map(lv -> uo1.apply(lv))//line n2

.forEach(s -> System.out.print(s + “ “));

What is the result?

Options:

A.

4000.0

B.

4000

C.

A compilation error occurs at line n1.

D.

A compilation error occurs at line n2.

Discussion
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Question 61

Given:

Questions 61

Which option fails?

Options:

A.

Foo mark = new Foo (“Steve”, 100);

B.

Foo pair = Foo.twice (“Hello World!”);

C.

Foo percentage = new Foo(“Steve”, 100);

D.

Foo grade = new Foo <> (“John”, “A”);

Discussion
Question 62

Given the code fragment:

List str = Arrays.asList (“my”, “pen”, “is”, “your’, “pen”);

Predicate test = s -> {

int i = 0;

boolean result = s.contains (“pen”);

System.out.print(i++) + “:”);

return result;

};

str.stream()

.filter(test)

.findFirst()

.ifPresent(System.out ::print);

What is the result?

Options:

A.

0 : 0 : pen

B.

0 : 1 : pen

C.

0 : 0 : 0 : 0 : 0 : pen

D.

0 : 1 : 2 : 3 : 4 :

E.

A compilation error occurs.

Discussion
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