MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Object Oriented Programming knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which among the following is a serialization descriptor for any class? |
| A. | StreamClass |
| B. | ObjectStreamClass |
| C. | ObjectStream |
| D. | StreamObjectClass |
| Answer» C. ObjectStream | |
| 2. |
RandomAccessFile can be used to _______________________ |
| A. | Read from a random access file |
| B. | Write to a random access file |
| C. | Read and write to a random access file |
| D. | Restricts read and write to a random access file |
| Answer» D. Restricts read and write to a random access file | |
| 3. |
Which exception handler can be used when character encoding is not supported? |
| A. | UnsupportedException |
| B. | UnsupportedEncodingException |
| C. | SupportException |
| D. | EncodingException |
| Answer» C. SupportException | |
| 4. |
StringReader handles _____________________ |
| A. | Any character stream |
| B. | A character stream whose source is an array |
| C. | A character stream whose source is character array |
| D. | A character stream whose source is String only |
| Answer» E. | |
| 5. |
Which class can handle IO class interrupt? |
| A. | ExceptionIO |
| B. | InteruptedIO |
| C. | InteruptedIOException |
| D. | IOInteruptException |
| Answer» D. IOInteruptException | |
| 6. |
Reader class is _________________ |
| A. | Used to read from files |
| B. | Abstract class to read character streams |
| C. | Abstract class to input character streams |
| D. | Used to take input from standard input stream |
| Answer» C. Abstract class to input character streams | |
| 7. |
Which class among the following makes incorrect assumptions? |
| A. | LineNumberInputStream |
| B. | LineNumberReader |
| C. | LineReader |
| D. | LineBuffer |
| Answer» B. LineNumberReader | |
| 8. |
What does FilePermission class do? |
| A. | This class is used to give permission rights to a file |
| B. | This class is used to restrict the use of permissions |
| C. | This class is used to represent device access permissions |
| D. | This class is used to represent file access permissions |
| Answer» E. | |
| 9. |
FileInputStream _________________________ |
| A. | Gets the input stream from any device file |
| B. | Gets the input stream from any open socket |
| C. | Gets the input stream from any cache |
| D. | Gets the input stream from any open file only |
| Answer» E. | |
| 10. |
What is a FileDescriptor? |
| A. | A handle for machine specific structure of an open file |
| B. | A handle for program specific structure of an open file |
| C. | A handle for compiler specific structure of an open file |
| D. | A handle for representing device files structure |
| Answer» B. A handle for program specific structure of an open file | |
| 11. |
File class is ____________________________ |
| A. | An abstract of file representation only |
| B. | An abstract of path names only |
| C. | An abstract which can be used to represent path names or file |
| D. | An abstract which can represent a file in any format |
| Answer» D. An abstract which can represent a file in any format | |
| 12. |
Which among the following class contains the methods to access character based console device? |
| A. | Console |
| B. | File |
| C. | Device |
| D. | Pipe |
| Answer» B. File | |
| 13. |
IO class provides input and output through ______________________ |
| A. | Data streams |
| B. | Serialization |
| C. | File system |
| D. | Data streams, serialization and file system |
| Answer» E. | |
| 14. |
What is the use of IO class? |
| A. | To handle all the input operations |
| B. | To handle all the output operations |
| C. | To handle all the input and output operations |
| D. | To handle all the input and output to the standard input |
| Answer» D. To handle all the input and output to the standard input | |
| 15. |
WHICH_CLASS_CAN_HANDLE_IO_CLASS_INTERRUPT??$ |
| A. | ExceptionIO |
| B. | InteruptedIO |
| C. | InteruptedIOException |
| D. | IOInteruptException |
| Answer» D. IOInteruptException | |
| 16. |
Which exception handler can be used when character encoding is not supported?$ |
| A. | UnsupportedException |
| B. | UnsupportedEncodingException |
| C. | SupportException |
| D. | EncodingException |
| Answer» C. SupportException | |
| 17. |
StringReader handles _____________________$ |
| A. | Any character stream |
| B. | A character stream whose source is an array |
| C. | A character stream whose source is character array |
| D. | A character stream whose source is String only |
| Answer» E. | |
| 18. |
PushBackReader allows the streams to be pushed back to the stream. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 19. |
Reader class is ________________? |
| A. | Used to read from files |
| B. | Abstract class to read character streams |
| C. | Abstract class to input character streams |
| D. | Used to take input from standard input stream |
| Answer» C. Abstract class to input character streams | |