Filter Streams

InputFilterStream and OutputFilterStream are
base classes for other streams capable to transform or buffering the data.
 
BufferedInputStream and BufferedOutputStream provide I/O buffering

DataInputStream and DataOutputStream provide reading/writing the
primitive Java datatypes (int, double, ...) as well as text lines and UTF
(byte-encoded Unicode) strings. The data streams read/write these objects
in a binary format and provide portability across platforms.

LineNumberInputStream keeps track of line numbers from which text is read
 
PushBackInputStream is a regular input stream with one-byte buffer,
that you can push back onto the stream after reading it.
 
PrintStream implements an output stream that has 
additional methods for printing.

Back to I/O Classes Overview