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Surprising Reserch Topic questions - Question:What is the difference between an Interface and an Abstract class?

An abstract class can have instance methods that implement a default behavior. An Interface can only declare constants and instance methods, but cannot implement default behavior and all methods are implicitly abstract. An interface has all public members and no implementation. An abstract class is a class which may have the usual flavors of class members (private, protected, etc.), but has some abstract methods.

asked Sep 13, 2013 in Java Interview Questions by rajesh
edited Sep 12, 2013
0 votes

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