1z0-813最も有効な質問と解答で勉強

仕事や学業の合間にOracle Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions)の合格を目指す方にとって、限られた時間をどう使うかが最大の課題です。Tech4Examの1z0-813練習問題は、要点を押さえた60問の問題集で、短い準備期間でも効率よく実力を磨けます。

Oracle 1z0-813 試験概要:

Oracle 1z0-813 試験シラバストピック:

Oracle Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions)に関するよくあるご質問

Oracle Upgrade to Java SE 8 OCP ( Java SE 6 and all prior versions) 認定 1z0-813 試験問題：

問題 #1

Which two states are valid for a watch key?

A. Runnable
B. Signalled
C. Not Runnable
D. Ready
E. Does not Exist

問題 #2

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

問題 #3

Given the code fragment:

Which two changes, taken together, enable the use of this class in a try with resources statement?

A. public class CustomRecource extend Closeable implements AutoCloseable {
B. Add a mothod:
Public void close {) ToException {
)
C. public class customResource extends AutoCloseable {
D. Add a meth
Public Boolean close() throws Toxception {
)
E. Add a mothod:
Public void autoClose () throws ToException {
)
F. public calss customResource implements closeable (

問題 #4

Which two codes correctly represent a standard language local code?

A. EE
B. UB
C. eB
D. uB
E. FR
F. ff

問題 #5

Which two statements are true about the walKfileTrac method of the files class?

A. If the file is a directory, and If that directory could not be opened, the poatVisitDirectory method is Invoked with the I/O exception.
B. By default, symbolic links are not automatically followed by this method.
C. If the file attributes cannot be lead due to on I/O exception, the visitFileFailed method is invoked With the I/O exception.
D. The maxDepth parameter's value is the maximum number of directories to visit.
E. The file tree traversal Is breadth first with the given filevisitor Invoked for each file encountered.

解説：