Help me structure my classes oop way

Question

I have a combo box for color which takes it's items from a specific table from database. I don't want it to take items directly from db.
I make a Color class which holds id and name, has public methods like getName, setName and save().
I have also made 2 packages to divide GUI and other classes:
GUI
---- window.java
core
--- Color.java
So now I'm confused. Ofcourse there are lots of different ways but I'd like to know the oop way.
Where do I write the code that gets all colors from database?
I'll make a class that basically is a combobox?
I'll make a new class called Colors that extends Color?

Answer 1

That's a bit better. Depends on what they do.
If Color is a class that sub-classes java.awt.Color
(not sure why you would do that, and the description
of it does not sound like it is or would be), then it
might go in a package like com.colorapp.color.
A class called Colors that is a "collection" of Color
classes - if that's what it it, might go in a package
perhaps like com.colorapp.utils.
A class like MyColorCombo - if it's a widget, and why
do you need to subclass one of those? - might go
either in some main class package, or in something
like com.colorapp.gui ...
~Billheh. Color was my bad. Dog would have been better.
You made things clearer.
I thought if ComboBoxDogs extended Dogs, and Dogs extended Dog then they had to make up something like this visually
Dog
--- Dogs
--------ComboBoxDogs
Like package dog, dog.dogs and dog.dogs.comboboxdogs .