Given that /green.txt and /colors/yellow.txt are accessible, and the code fragment: Path source = Paths.get("/green.txt); Path target = Paths.get("/colors/yellow.txt); Files.move(source, target, StandardCopyOption.ATOMIC_MOVE); Files.delete(source); Which statement is true?
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A. B. C. D.D.
The code fragment provided attempts to move the file "green.txt" to the "/colors" directory using the Files.move() method with the StandardCopyOption.ATOMIC_MOVE option. After the move operation, it tries to delete the original source file.
Let's analyze the code and its possible outcomes:
The code starts by defining the source and target paths using the Paths.get() method. The source path is set to "/green.txt" and the target path is set to "/colors/yellow.txt".
The Files.move() method is then called with the source and target paths as arguments. The StandardCopyOption.ATOMIC_MOVE option is specified. This option indicates that the move operation should be performed atomically, meaning that it should either complete successfully or not be performed at all.
If the move operation is successful, the file "green.txt" is moved to the "/colors" directory and renamed as "yellow.txt".
Now, let's consider the possible outcomes based on the answers provided:
A. The green.txt file content is replaced by the yellow.txt file content, and the yellow.txt file is deleted. This answer is incorrect. The Files.move() method does not merge the contents of the source and target files. Instead, it moves the source file to the target location.
B. The yellow.txt file content is replaced by the green.txt file content, and an exception is thrown. This answer is incorrect. The Files.move() method does not replace the content of the target file. It only moves the source file to the target location.
C. The file green.txt is moved to the /colors directory. This answer is correct. If the move operation is successful, the file "green.txt" will be moved to the "/colors" directory and renamed as "yellow.txt". The resulting file will be "/colors/yellow.txt".
D. A FileAlreadyExistsException is thrown at runtime. This answer is incorrect. Since the StandardCopyOption.ATOMIC_MOVE option is used, if the target file already exists, a FileAlreadyExistsException will be thrown before the move operation, and the source file will not be deleted. In this case, no exception will be thrown because the target file "/colors/yellow.txt" does not exist.
Therefore, the correct answer is C. The file "green.txt" is moved to the "/colors" directory.