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Question about Abstract classes...

 
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Can you have a class that is inherited from another class and the descendant
class be abstract and the parent is not?
 
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Barry,
Yes. Any class in the hierarchy can introduce abstract methods. In fact many abstract classes extend java.lang.Object - a concrete class.
 
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And note that you are free to label any class abstract, whether or not it contains any abstract methods.

Bill
 
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