1. Week 9 Recap CSE 115 Spring 2007

2. Collections “Buckets” that can help us carry around large numbers of objects. “Buckets” that can help us carry around large numbers of objects. Main functionality: Main functionality: –Insert –Delete –Find

3. Collections in Java java.util.Collection interface java.util.Collection interface Many pre-built collections that implement this interface Many pre-built collections that implement this interface

4. Generics in Java  When we use a collection, we need to tell Java what type of thing is contained in the collection  java.util.Collection bagOfCats;

5. Applications Stand alone applications. Stand alone applications. Execution begins in a method named main. Execution begins in a method named main. Applications need to create a JFrame so that we can have a window on the screen. Applications need to create a JFrame so that we can have a window on the screen.

6. Timers for Animation Can use a Timer to help us control animation of all the elements on the screen. Can use a Timer to help us control animation of all the elements on the screen.