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This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Java knowledge and support exam preparation. Choose a topic below to get started.
1. |
Which feature of java 7 allows to not explicitly close IO resource? |
A. | try catch finally |
B. | IOException |
C. | AutoCloseable |
D. | Streams |
Answer» D. Streams | |
2. |
Which jar provides FileUtils which contains methods for file operations? |
A. | file |
B. | apache commons |
C. | file commons |
D. | dir |
Answer» C. file commons | |
3. |
How can we filter lines based on content? |
A. | lines.filter() |
B. | filter(lines) |
C. | lines.contains(filter) |
D. | lines.select() |
Answer» B. filter(lines) | |
4. |
How can we create a symbolic link to file? |
A. | createLink() |
B. | createSymLink() |
C. | createSymbolicLink() |
D. | createTempLink() |
Answer» D. createTempLink() | |
5. |
How to read entire file in one line using java 8? |
A. | Files.readAllLines() |
B. | Files.read() |
C. | Files.readFile() |
D. | Files.lines() |
Answer» B. Files.read() | |
6. |
How can we get the size of specified file? |
A. | capacity(path) |
B. | size(path) |
C. | length(path) |
D. | Path.size() |
Answer» C. length(path) | |
7. |
How to copy the file from one location to other? |
A. | Files.copy(source, target) |
B. | Path.copy(source, target) |
C. | source.copy(target) |
D. | Files.createCopy(target) |
Answer» B. Path.copy(source, target) | |
8. |
Which method can be used to check fileAccessiblity? |
A. | isReadable(path) |
B. | isWritable(path) |
C. | isExecutable(path) |
D. | isReadable(path), isWritable(path), and isExecutable(path) |
Answer» E. | |
9. |
WHICH_FEATURE_OF_JAVA_7_ALLOWS_TO_NOT_EXPLICITLY_CLOSE_IO_RESOURCE??$ |
A. | try catch finally |
B. | IOException |
C. | AutoCloseable |
D. | Streams |
Answer» D. Streams | |
10. |
How can we delete all files in a directory? |
A. | Files.delete(path) |
B. | Files.deleteDir() |
C. | Directory.delete() |
D. | Directory.delete(path) |
Answer» B. Files.deleteDir() | |
11. |
Which method is used to create a directory with fileattributes? |
A. | Path.create() |
B. | Path.createDirectory() |
C. | Files.createDirectory(path, fileAttributes) |
D. | Files.create(fileAttributes) |
Answer» D. Files.create(fileAttributes) | |