Read data from and write data to file using buffering technique

[MohammedElsayyed]

Using buffering can greatly increase the performance of an application. Buffering reduces the number of I/O operations by first combining smaller outputs together in memory. The number of actual physical I/O operations is small compared with the number of I/O requests issued by the program. Thus, the program that’s using buffering is more efficient.

BufferedInputStream and BufferedOutputStream should be used instead of FileInputStream and BufferedOutputStream, respectively.

[MohammedElsayyed]

While writing to file using BufferedOutputStream, don't forget to use stream object's flush before closing the stream to write the partially filled buffer to the specified file.