1Z1-816 試験問題を無料オンラインアクセス

Given:

When run and all three files exist, what is the state of each reader on Line 1?

• A.The compilation fails.
• B.Only reader1 has been closed.
• C.All three readers have been closed.
• D.All three readers are still open.

Given:

Which statement is equivalent to line 1?

• A.double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).sum;
• B.double totalSalary = list.stream().map(e -> e.getSalary() * ratio).reduce (bo).ifPresent (p -> p.doubleValue());
• C.double totalSalary = list.stream().mapToDouble(e -> e.getSalary() * ratio).reduce(starts, bo);
• D.double totalSalary = list.stream().map(Employee::getSalary * ratio).reduce (bo).orElse(0.0);

Given the code fragment:
Path currentFile = Paths.get("/scratch/exam/temp.txt");
Path outputFile = Paths get("/scratch/exam/new.txt");
Path directory = Paths.get("/scratch/");
Files.copy(currentFile, outputFile);
Files.copy(outputFile, directory);
Files.delete (outputFile);
The /scratch/exam/temp.txt file exists. The /scratch/exam/new.txt and /scratch/new.txt files do not exist.
What is the result?

• A.The program throws a NoSuchFileException.
• B.A copy of /scratch/exam/new.txt exists in the /scratch directory and /scratch/exam/new.txt is deleted.
• C./scratch/exam/new.txt and /scratch/new.txt are deleted.
• D.The program throws a FileaAlreadyExistsException.

Given:

What action ensures successful compilation?

• A.Replace enum Color implements Serializable with public enum Color.
• B.Replace enum Color with public enum Color.
• C.Replace int c; with private final int c;.
• D.Replace public Color(int c) with private Color(int c).
• E.Replace int c; with private int c;.

Examine these module declarations:

Which two statements are correct? (Choose two.)

• A.The placement of the com.example.api API in a separate module, ServiceAPI, makes it easy to install multiple provider modules.
• B.The ServiceProvider module does not know the identity of a module (such as Consumer) that uses the com.example.api API.
• C.The ServiceProvider module should export the com.myimpl package.
• D.The ServiceProvider module is the only module that, at run time, can provide the com.example.api API.
• E.The Consumer module should require the ServiceProvider module.