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Java Quiz Day 50
Question 1
What is the purpose of the Java I/O (Input/Output) system?
- A
To handle network communication
- B
To handle file and console input and output
- C
To manage database connections
- D
To manage memory and CPU usage
Question 2
Which of the following classes is used to read data from a file in Java?
- A
Writer
- B
Reader
- C
OutputStream
- D
FileInputStream
Question 3
What does the Writer class in Java primarily handle?
- A
Reading binary data from a file
- B
Writing text data to a file
- C
Writing binary data to a file
- D
Reading text data from a file
Question 4
Which of the following classes is a direct subclass of InputStream in Java?
- A
Reader
- B
FileReader
- C
BufferedReader
- D
FileInputStream
Question 5
What is the primary function of the read() method in the Reader class?
- A
To read text data one character at a time
- B
To read text data line by line
- C
To read binary data
- D
To convert data into a byte array
Question 6
Which of the following is true about Writer and Reader classes in Java I/O?
- A
Writer handles character streams, while Reader handles byte streams
- B
Writer and Reader are used for handling character streams
- C
Writer handles byte streams, while Reader handles character streams
- D
Both handle binary data
Question 7
Which of the following is a subclass of Writer in Java?
- A
FileReader
- B
OutputStreamWriter
- C
BufferedReader
- D
FileInputStream
Question 8
Which method of the Reader class is used to read a single character?
- A
readByte()
- B
readChar()
- C
read()
- D
readLine()
Question 9
Which of the following I/O streams does not require closing after use?
- A
Reader and Writer
- B
FileInputStream and FileOutputStream
- C
BufferedReader and BufferedWriter
- D
None of the above
Question 10
What does the close() method do in the context of Java I/O streams?
- A
Releases any system resources used by the stream
- B
Reads data from the stream
- C
Writes data to the stream
- D
None of the above
There are 10 questions to complete.