Implement a complete Builder pattern

- [Instructor] In this section,…I will refactor the example application…to create a more complete builder pattern.…Currently, it uses a simple builder…to create bedroom objects.…The Architect class creates bedroom objects…by specifying the characteristics…of the bedrooms that are needed,…however, it would be useful if it was possible…to create different kinds of rooms,…such as kitchens, bathrooms and so on.…In the classic builder pattern,…the Builder class is actually an abstract interface.…In this example, there could be an interface…that defines methods for building rooms in general,…and there could be different concrete builders…for different types of rooms.…

This would be useful because building a bedroom…has some of the same requirements for building a kitchen,…but in some respects, is very different.…To achieve this, the first thing we need to do…is to create the abstract interface.…In NetBeans, it is easy to create an interface…from an existing class.…On the left of the screen, there is a menu called Projects.…