Another question was: what's the difference between an abstract class and an interface. Can a class inherit both from an abstract class and an interface at the same time?

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Sigiloso · Accepted Answer

Uh, this question is as dumb as the first answer. A Java class can extend at most one class, and implement one or more interfaces. A combination of the above is allowed.

rachna · Answer

See this for differences between abstract class and interface, the first part of the question:
http://www.interview-questions-java.com/abstract-class-interface.htm

Sigiloso · Answer

I agree with the 2nd post

Hems · Answer

Yes,
In java class can`t have more than one super class but it can extend a super class and implement interface at one time.

jyo · Answer

Difference between interface and abstract is , abstract can contain both abstract and non-abstract that is concrete methods, but interface has only all abstract methods....and i agree with ans 2

Sigiloso · Answer

The answer is yes in C++ but no in Java.

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