Whats the different between regular strems and buffered streams?

Hum , Hey.
Whats the different between regular streams(un buffered) and buffered streams?
When should I use buffered streams and when should I use buffered streams?
Thanks in advance !

Gonen wrote:
CeciNEstPasUnProgrammeur wrote:
Heck, I often asked myself that, too. If only there were any documentation for those classes one could read...
The buffer allows the stream to read a whole chunk of data, even though your program requests it one byte at a time. Reading larger chunks from a file e.g. is much faster than trying to read single bytes. Especially considering that usually, a whole cluster is read and you'd discard all but one byte, and then repeat the same...so if the buffered is faster . why there is un buffered streams?Lots of reasons. Maybe you're sure you're going to send or receive all the data in one transaction, so you don't want to waste memory on another buffer. Maybe you're sending data to a device that requires real-time input, like a robotic arm.

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