This week we will be talking about the relationships between classes. Classes represent objects in the real world. We represent relationships between then using fields and methods.

In this part of the lecture, we will discuss ArrayList, a useful class from the java.util package.

ArrayLists use generic classes so you can have ArrayLists of different types of objects. In this lesson, we show you how to define your own generic classes.

This file is the tutorial you will be expected to be able to answer next week. The material covered is presented in the lecture.

This week you will show your Point and Circle classes stored on your AWS account.

Next week you will be demonstrating squares, triangles and lines.

Next week you will demo squares, triangles and lines. You may download the test files from ShapesFiles.zip on the web You will need to unzip them and add them to your project.