CSC152 2005F, Class 21: PAUSE

Admin
* Exams due
* No reading
* New homework: Build more TextBlock thingys and clean up the ones that exist

Overview:
* Any review needed?
* More about polymorphism
* Lab

/Things not quite understood/

* Exceptions
  * And do they always stop the run of a program?
* Template classes
* For loops ***
  * And when should you use for loops vs. while loops
* Writing test clases ***
* Input and output outside of a main class