Problem Set 4 is here.
In addition to the textbook reading, there is an additional reading for PS4: Static Typing and Other Mysteries of Life by Bertrand Meyer. I will distributed printed copies of this at class today.
Problem Set 4 is due by 5pm on Monday, October 11. You should drop off a paper submission at my office, as well as emailing me a zip file of your code and posting your favorite image on the course site.