Here's a short little video explaining how to use ArrayList and LinkedList. For a collection of objects, some natural things you'll want to do are : 1) put something in the collection - add() 2) check if something is in the collection - contains() 3) add a bunch of things in the collection at once - addAll() and there's more stuff you'll want to do. See the documentation here: https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html for a list of all the things you can do. You'll see that these two classes are better than using plain old arrays in certain cases. Homework is posted online, but if you're watching the video and want to criticize my teaching, tell me: After this video I'm expecting my students to be able to write a little program that uses the add(), addAll(), contains(), containsAll(), isEmpty(), toArray() and clear() functions on an ArrayList and a LinkedList. Is this an accessible homework assignment? ... https://www.youtube.com/watch?v=JeqO-f80R4k

In this video we quickly cover the following operations: 1. AND & 2. OR | 3. Left Shift 4. Right Shift (signed, next week we will cover the Unsigned Right Shift ) A small document and code related to this lecture are here: https://github.com/melvyniandrag/BitwiseOperatorsInJava (The notes are there on github in the "NotesForLecture" directory.) ... https://www.youtube.com/watch?v=XXZLLROls6w