Question

Whenever I have to work with topics like file-handling or socket-programming, I have to look for sample code on the internet to see how the xxStreamxx,xxReader,xxWriter classes are used.
I want to be able to use them on my own and know how they work.

How do I go about learning that?

Answer 1

First of all, you have to learn and understand what streams are. If you don’t understand the concepts behind them, you will be always copying code. So read the “Basic I/O lesson of the java tutorial”: http://docs.oracle.com/javase/tutorial/essential/io/streams.html. A comprehensive presentation about this topic is this one from javapassion.com: http://www.javapassion.com/javase/javaiostream.pdf.

While reading, as I usually told my students: “write code and make mistakes” 🙂