The examples I do in class are always in a public directory on the cslab. The code done in class on, say, September 2, will be found at
/home/tvandrun/Public/cs235/9-2
Note that sometimes what I have planned for one day in class takes a little less or more than one class period to finish. This means occasionally a directory for a certain class date actually contains some material we had started on the previous class date or finished on the next class date.
I will also try to remember to put a copy of the handout (as a pdf) in that directory. For example, the handout for Sept 2 would be
/home/tvandrun/Public/cs235/9-2/handout9-2.pdf
If there's something that you're looking for and you can't find, then I might have forgotten to put it there. Just let me know and I'll help you find it.