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Abstract class & Interface

 
Max White
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What is the difference(technical,implementation wise,design scenario ... any) between an abstract class with all abstract methods and an interface?
Also, an abstract class with all non-abstract methods and a concrete class?
Thanks for replying..
 
Jesper de Jong
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This is a frequently asked question, see Interface vs. abstract class in our FAQ.
 
Consider Paul's rocket mass heater.
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