Oracle Exam 1Z0-809 Topic 5 Question 67 Discussion

Actual exam question for Oracle's 1Z0-809 exam

Question #: 67
Topic #: 5

[All 1Z0-809 Questions]

Given the code fragments:

interface CourseFilter extends Predicate {

public default boolean test (String str) {

return str.equals (''Java'');

}

and

List strs = Arrays.asList(''Java'', ''Java EE'', ''Java ME'');

Predicate cf1 = s - > s.length() > 3;

Predicate cf2 = new CourseFilter() { //line n1

public boolean test (String s) {

return s.contains (''Java'');

}

};

long c = strs.stream()

.filter(cf1)

.filter(cf2//line n2

.count();

System.out.println(c);

What is the result?

CA compilation error occurs at line n1.

DA compilation error occurs at line n2.

Show Suggested Answer

Suggested Answer: B, C

by Aliza at Jul 10, 2024, 08:08 PM

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Jamey

11 days ago

The correct answer is B) 3. The first filter (cf1) checks for strings with length greater than 3, and the second filter (cf2) checks for strings containing 'Java'. The resulting stream will contain 'Java', 'Java EE', and 'Java ME', so the count is 3.

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