Certification in Beginning C Sharp

WooHOO! I finished my online course to be rewarded with a certification! It clearly states "C# for the Absolute Beginner", but it's a step and a certification in something!  I knew a good portion already from studying Goldstone's book, but did things ever change about half way in.  I still need to practice a few things to memory, like: loops, lists, arrays, classes and constructors, using external files, and GUI! That does seem a lot to work on now that I type it all out, but baby steps are stil...