There are seven popular structural design patterns which you are liable to encounter. In this module, we are going to concentrate on the Flyweight pattern, and incorporate it into the course project. The other six common structural patterns are described in the SlideShow below:

These patterns use the same basic techniques to form their structures, so they look somewhat similar on the face of it. However, most of these patterns solve different problems, and in general the problem you face determines which pattern you choose.

Here is a short quiz on the material we have just covered.
Common Structural Patterns - Quiz