Java FAQ: Top Questions
25. How does file I/O work in Java?
File I/O
in Java handles reading from and writing to files using classes in
java.io
and
java.nio.file
. Common approaches include byte streams, character streams, and NIO.
-
Byte Streams:
FileInputStream,FileOutputStreamfor binary data. -
Character Streams:
FileReader,FileWriter, or buffered versions for text. -
NIO:
Filesclass for modern file operations. - Try-with-Resources: Ensures automatic resource closure.