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

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?

Given:

Which option fails?

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?