Bob...
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The Interface of Person is the methods and properties. So... using VFP lets pretend we only get an Interface inherited when you create a subclass (implment and interface)

Define Class Employee as Person

EndDefine
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This is not a good way to illustrate how interfaces are implemented. You can have a situation where you can implement MULTIPLE interfaces. For example, if I have a print class and a entity class, I could create an implementing class that implements both the print and entity interfaces. Using the Define Class metaphor does not address this...