Question: What's the difference between an interface and a complete abstract class with only abstract methods? There is no difference between the two. Interfaces are preferable

What's the difference between an interface and a complete abstract class with only abstract methods?
There is no difference between the two.
Interfaces are preferable because interfaces support multi-inheritance.
An abstract class must have at least one abstract method while an interface may have no abstract methods at all.
As long as they are not used in an inheritance relationship, both can be used to create objects of it and those objects would work the same way.
What's the difference between an interface and a

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