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Oracle Java SE 8 Programmer II Sample Questions (Q105-Q110):

NEW QUESTION # 105
Which two statements are true about the Fork/Join Framework? (Choose two.)

A. The Fork/Join framework implements a work-stealing algorithm.
B. The Fork/Join solution when run on multicore hardware always performs faster than standard sequential solution.
C. The RecursiveTask subclass is used when a task does not need to return a result.
D. The Fork/Join framework can help you take advantage of multicore hardware.

Answer: A,C

NEW QUESTION # 106
Given the code fragment:

What is the result?

A. The code reads the password without echoing characters on the console.
B. A compilation error occurs at line n1.
C. A compilation error occurs because the IOException isn't declared to be thrown or caught?
D. A compilation error occurs at line n2.

Answer: C

NEW QUESTION # 107
Given:
public class product {
int id; int price;
public Product (int id, int price) {
this.id = id;
this.price = price;
}
public String toString() { return id + ":" + price; }
}
and the code fragment:
List<Product> products = Arrays.asList(new Product(1, 10),
new Product (2, 30),
new Product (2, 30));
Product p = products.stream().reduce(new Product (4, 0), (p1, p2) -> {
p1.price+=p2.price;
return new Product (p1.id, p1.price);});
products.add(p);
products.stream().parallel()
. reduce((p1, p2) - > p1.price > p2.price ? p1 : p2)
. ifPresent(System.out: :println);
What is the result?

A. 4 : 0
B. 2 : 30
C. 4 : 60
2 : 30
3 : 20
1 : 10
D. 4 : 60
E. The program prints nothing.

Answer: C

NEW QUESTION # 108
Given the code fragment:

Which is the valid definition of the Course enum?

A. Option B
B. Option D
C. Option A
D. Option C

Answer: B

NEW QUESTION # 109
Which statement best describes encapsulation?

A. Encapsulation ensures that classes can be designed with some fields and methods declared as abstract.
B. Encapsulation ensures that classes can be designed so that their methods are inheritable.
C. Encapsulation ensures that classes can be designed so that if a method has an argument MyType x, any subclass of MyType can be passed to that method.
D. Encapsulation ensures that classes can be designed so that only certain fields and methods of an object are accessible from other objects.

Answer: D

Explanation:
http://www.tutorialspoint.com/java/java_encapsulation.htm

NEW QUESTION # 110
......

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Oracle Java SE 8 Programmer II Sample Questions (Q105-Q110):

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