If you've never indulged in computer programming before, and you feel like
giving it a try, this free online service is probably about as simple a way
to get started as you could possibly hope for. Open up the site in your your
browser and type some source code. Choose a language from the list on the
left (there's more than 30 to select), and press the Submit button. That's
all there is to it. Your program will be compiled and run and, assuming there
are no errors, you'll see the output on the screen. As an introduction to
programming for adults and kids alike, this is a simple, free tool that's
definitely worth a try. Or if you're an experience programmer, away from your
development machine but in need of an environment in which to try out a new
idea, this free service is hard to beat.
http://www.techsupportalert.com/content/practice-your-programming-more-30-languages.htm