This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
Both are higher level input streams and can be created to add functionality to another InputStream. (Including each other) DataInputStream allows you to read the data off the inputstream as Java types including int, double, byte, byte. It does have a method to read in a String but, it's deprecated in favor of readLine in the BufferedInputStream. BufferedInputStream buffers the input (reads ahead basically) and when you make a read off the stream, you are actually reading it off the buffer. This provides a performance enhancement to your Input operations. Hope this helps