Exam 1z0-809 topic 1 question 87 discussion

Actual exam question from Oracle's 1z0-809

Question #: 87
Topic #: 1

[All 1z0-809 Questions]

Given:
and the code fragment:

Which modification enables the code fragment to print Speaker?

A. Implement Predicate in the Product.ProductFilter class and replace line n2 with .filter (p -> p.ProductFilter.test (p))
B. Replace line n1 with: public static boolean isAvailable (Product p) {
C. Replace line n2 with: .filter (p -> p.ProductFilter: :isAvailable (p))
D. Replace line n2 with: .filter (p -> Product: :ProductFilter: :isAvailable ())

Show Suggested Answer

Suggested Answer: B 🗳️

by Svetleto13 at April 21, 2021, 11:57 p.m.

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asdfjhfgjuaDCV

4 months, 3 weeks ago

B is the correct answer

upvoted 1 times

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steefaand

5 months, 3 weeks ago

Selected Answer: B

B, since you can't call nonstatic method from static context

upvoted 1 times

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import java.util.Arrays; import java.util.List; class Product { String name; int qty; public String toString(){ return name; } public Product(String name, int qty) { this.name = name; this.qty = qty; } static class ProductFilter { public static boolean isAvailable(Product p) { // line nl return p.qty >= 10; } public static void main (String [] args) { List<Product> products = Arrays.asList( new Product("MotherBoard", 5), new Product("Speaker", 20)) ; products.stream() .filter(Product.ProductFilter::isAvailable) // line n2 .forEach(p -> System.out.println(p)); } } }

upvoted 1 times

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Svetleto13

3 years, 3 months ago

B,tested

upvoted 4 times

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Exam 1z0-809 topic 1 question 87 discussion

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asdfjhfgjuaDCV

steefaand

push05

Svetleto13

SY0-701