Lectures
Click on a lecture to see the video if it is available. Videos are restricted to a valid Cornell netid login. However, slides and demo code may be downloaded without a Cornell netid.
Inheritance
This lecture references Lesson 22. This lecture introduces subclasses, which can add extra functionality to an existing class. Subclasses and inheritance important parts of object oriented programming. More › |
November 2, 2021 | handout | slides | demos |
Object-Oriented Design
This lecture references Videos 20.9-20.10 and Lesson 21. In the lecture on algorithm design, we talked about how to properly implement a a function definition. In this lecture we do the same for classes. More › |
October 28, 2021 | handout | slides | demos |
Classes
This lecture references Videos 20.1-20.8. Up until now, if we wanted to use objects, we imported a module that provided the class. In this lecture we finally learn how to create our own classes. More › |
October 26, 2021 | handout | slides | demos |
Nested Lists and Dictionaries
This lecture references Lesson 18 and Videos 19.1-19.7. This presentation explores the last built-in (as opposed to user-defined) types in this course. These types are often used to store data in files. More › |
October 21, 2021 | handout | slides | demos |
More Recursion
This lecture references Videos 17.6-17.11. The divide-and-conquer examples we saw in the previous session were on the easy side. In this session we look at some much more challenging examples. More › |
October 19, 2021 | handout | slides | demos |