JavaWorld on OO: Getters/Setters vs Builder

Question

Background:

I found this article on JavaWorld, where Allen Holub explains an alternative to Getters/Setters that maintains the principle that the implementation of

Answer 1

When you require a constructor (consider factories in a similar way) for an object, you force the code using your object to pass the essential requirements to the constructor. The more explicit the better. You can leave the optional fields to be set later (injected) using a setter.