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Abstract class & Interface

Max White
Ranch Hand

Joined: Jun 28, 2008
Posts: 85
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
Java Cowboy
Saloon Keeper

Joined: Aug 16, 2005
Posts: 15084

This is a frequently asked question, see Interface vs. abstract class in our FAQ.

Java Beginners FAQ - JavaRanch SCJP FAQ - The Java Tutorial - Java SE 8 API documentation
I agree. Here's the link:
subject: Abstract class & Interface
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