Oracle 1z0-813日本語 問題集

質問 1：



A. public Class Generator implement IdGenerator (
Private int id =0;
Public int getNextId { ) {
Synchronized (id) ;
return ++id
}
}
B. public Class Generator implement IdGenerator (
privateAtcmicinInteger id - new AtomaticIntegger (0);
public int getNextId{} {
return id. Increaseincrasement AndSet{) ;
}
}
C. public class Generator implements IdGenerator (
Private volatile int Id -0;
Public int getNExt Td() |
Synchronized (new generator()) {
return ++id;
}
}
}
D. public Class Generator implement IdGenerator (
Private int id =0;
Public int getNextId { ) {
Synchronized (id) ;
return ++id
}
}
}
Return ++id;
E. public class Generator implements IdGeneretor (
Private int id =0;
Public int getNExtId {) {
Synchronized (new generator()) {
return ++id;
}
}
}
正解：B

質問 2：



A. Option A
B. Option C
C. Option D
D. Option B
正解：D

質問 3：



A. Replication line 27 with:
Throw e;
B. Replace line 26 with:
) catch (ArituretcExeption | NumberFormException e) {
C. Comment the lines 28, 29, and 30.
D. Replication line 26 with:
) catch (Exception | ArithmetiExeception | numberFormate Exception e) {
正解：C

質問 4：

A. DoubleFunction
B. DoubleSuppLier
C. ToDoubleFunction
D. DoubleConsumer
正解：C

質問 5：



A. public interface greater {
Public String greet(String name) ;
)
B. public interface greater <T> {
Public static String greep (T , name) ;
)
C. public interface greater {
Private string greet {string name};
)
D. public interface greater {
Public default String greet{ String name} {
Return name;
}
Public String greet (String name, String salute);
)
正解：A

質問 6：


A. France
Optional [Not Found]
B. Optional (France)
Not Found
C. optional [France]
Optional [Not Found]
D. France
Not Found
正解：D