Which class is used to read primitive data types and strings from a binary stream?
Q.42Medium
Which of the following best describes the relationship between InputStream and Reader classes?
Q.43Medium
In a scenario where you need to write formatted output (like printf), which class should be used?
Q.44Medium
What is the difference between read() and read(byte[] b) methods in InputStream?
Q.45Medium
Which exception is thrown when you try to serialize an object that contains non-serializable fields?
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Q.46Medium
What is the purpose of the serialVersionUID field in a serializable class?
Q.47Medium
You need to read a file line by line efficiently. Which approach is best?
Q.48Medium
What happens if you try to read from a closed stream?
Q.49Medium
Which class wraps a byte stream to handle character encoding/decoding?
Q.50Medium
In the try-with-resources statement, what happens to resources automatically?
Q.51Medium
In a file I/O operation, you need to write objects to a file and later retrieve them. Which approach is most appropriate?
Q.52Medium
What will happen if you attempt to serialize a class that contains a non-serializable instance variable without declaring it as transient?
Q.53Medium
Consider a scenario where you're processing a 5GB log file and need to count specific error messages. Which I/O strategy would be most memory-efficient?
