Oracle Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions)

QUESTION NO: 1
Given the code fragment:

You have been asked to define the productcode class. The definition of the productcode class must allow c 1 instantiation co succeed and cause a compilation error on o2 instantiation.
Which definition of productcode meets the requirement?

A. class productCode<T, S< {
T c1;
S c2;
) B. class productCode<T, S extends T> {
T c1;
S c2;
) C. Class productCode<T, S super T> {
T c1;
S c2;
) D. class productCode<T, S<IntegAr>> {
T c1;
S c2;
)

Correct Answer: B

QUESTION NO: 2
Which two elements must be present in any valid pipeline?

A. a lambda expression or a method reference B. a reduction operation C. one or more Intermediate operations D. o terminal operation E. a source

Correct Answer: D,E

QUESTION NO: 3
Given:

Which two code fragments, when inserted at Line n1 independently, enable the code print TRUCKCarBike?

A. .sorted ((v1, v2) -> v1.getVid() < v2. getVid()) B. .sorted ((v1, v2) -> integer .compare(v1.getVId() , v2.getVid())) C. .sorted(comparator, comparing ((vehicle v) v. getVId())) D. .sorted (comparable. Comparing (vehicle:: getVName) . reverse() E. .map(v-> v. getVid ())
. sorted ()

Correct Answer: B,C

QUESTION NO: 4
Which is true regarding the jaa.nio.file.Path interface?

A. Paths associated with the default provider are not interoperable with the java.io.File class. B. Implementation of this Interface are nor safe for use by multiple concurrent threads. C. implementations of this interface arc immutable. D. The interface extends the watchservice Interface.

Correct Answer: C

QUESTION NO: 5
Given the code fragments:

What is the result?

A. null B. [Dog. Cat, Mouse] C. DodcatMOUSE D. A compilation error occurs.

Correct Answer: D

QUESTION NO: 6
Given the code fragment:

Which code fragment, when inserted at line n1, enables the code to print ABCD?

A. string str = sList.stream reduce () .reduce ("A", (s1, s2) -> s1.concat (s2)) ; B. string str = sList.stream reduce () .reduce ("A" , string: : concat) ; C. string str = sList.stream reduce () .reduce (" ", (s1, s2) -> s1.concat (s2)); D. string str = sList.stream reduce (). Reduce (s1, s2) ->s1, concat (82) ;

Correct Answer: C

Oracle Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions) - 1z1-813 Exam Questions