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Oracle Java SE 11 Developer Sample Questions (Q270-Q275):

NEW QUESTION # 270
Assuming the Widget class has a getPrice method, this code does not compile:

Which two statements, independently, would allow this code to compile? (Choose two.)

A. Replace line 1 with List<Widget> widgetStream = widgets.stream();.
B. Replace line 5 with widgetStream.filter((Widget a) > a.getPrice() > 20.00).
C. Replace line 5 with widgetStream.filter(a > ((Widget)a).getPrice() > 20.00).
D. Replace line 4 with Stream<Widget> widgetStream = widgets.stream();.

Answer: C,D

NEW QUESTION # 271
Given the code fragment:

What is the result?

A. 0
B. 1
C. 2
D. 3

Answer: D

Explanation:

NEW QUESTION # 272
Given:

What must be added in line 1 to compile this class?

A. catch(IOException e) { }
B. catch(FileNotFoundException | IOException e) { }
C. catch(IndexOutOfBoundsException e) { }catch(FileNotFoundException e) { }
D. catch(FileNotFoundException e) { }catch(IndexOutOfBoundsException e) { }
E. catch(FileNotFoundException | IndexOutOfBoundsException e) { }

Answer: A

NEW QUESTION # 273
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. The program throws a FileaAlreadyExistsException.
D. /scratch/exam/new.txt and /scratch/new.txt are deleted.

Answer: A

Explanation:

NEW QUESTION # 274
Which code fragment compiles?

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

Answer: A

Explanation:

NEW QUESTION # 275
......

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