Java IO Streams

Which class is used for reading bytes from a file in Java?

• FileInputStream

• BufferedReader

• FileReader

• DataInputStream

What is the difference between byte streams and character streams in Java?

• Byte streams can only handle images; character streams are for audio files.

• Byte streams are used for text data; character streams are for binary data.

• Character streams are faster than byte streams for all types of data.

• Byte streams are for binary data; character streams are for text data.

What is the role of BufferedInputStream in Java?

• BufferedInputStream is a class for handling network connections.

• BufferedInputStream improves I/O performance by buffering input data.

• BufferedInputStream encrypts data for secure transmission.

• BufferedInputStream is used for writing data to files.

Which method is used to read a single character from a FileReader?

• read()

• getChar()

• readChar()

• fetch()

What is the main difference between InputStream and Reader in Java?

• InputStream reads bytes, while Reader reads characters.

• InputStream reads characters, while Reader reads bytes.

• InputStream is used for text files, while Reader is for binary files.

• Both InputStream and Reader read bytes.

Which of these methods is used to close an input or output stream in Java?

• end()

• finish()

• stop()

• close()

What does the flush() method do in an output stream?

• Clears any bytes from the input buffer

• Forces any buffered output bytes to be written out

• Closes the stream

• Ends the output session

Which of the following is a character stream class?

• FileInputStream

• FileReader

• ObjectInputStream

• DataInputStream

What exception is thrown if an I/O operation fails?

• IOException

• InputMismatchException

• FileNotFoundException

• ArrayIndexOutOfBoundsException

Which method in the File class checks if a file exists?

• isPresent()

• exists()

• isFile()

• isAvailable()