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Expedia Interview Question for Software Engineer / Developers






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0
of 0 vote

An abstract class may have data members.

- kulang November 30, 2008 | Flag Reply
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-1
of 1 vote

Can anyone tell me the difference between the interface and abstract classes. I dont see any difference between them. What is VTBL?

I dont see any purpose of interface. Is it an alias of abstract class.

- Noname January 04, 2007 | Flag Reply
Comment hidden because of low score. Click to expand.
-1
of 1 vote

No, there are a few differences between an interface and an abstract class.
1. In an interface all the methods should be abstract but in an abstract class it is not necessary to have abstract methods.
2. Any class can implement an interface but to extend the methods of an abstract class, it should be a subclass of that class.
3. By default all the methods in an interface are public

- rags September 11, 2008 | Flag Reply


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