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Re: Interface Vs Abstract classes
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Posted: Nov 29, 2004 12:46 AM
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Of course not.
A Interface providec certain functionality without specifying a super class.
A simple example:
I wrote an Interface called Multilangual. It just contains the method setLanguage(String id).
All of my formulas and dialogs and self-made panels implement this method.
So if I change the language during runtime, I know for certain that the method is supported becaucse the objects implement the interface, I don't need to know the class of the objects.
Another Interface I use is the DataHandler for formulas wich have to handle DB data. The methods are gotoNext(), gotoPrevious, restoreData(), saveToDB(), ...
I access the forms through the interface, I can exchange one form with another very easily, because they all implement the same interface.
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