What are Abstract classes, Abstract Methods, Abstract Schema, Interfaces And Concrete Classes?
Published by: Rinku (3/4/2009 12:56:36 AM)
What are Abstract classes, Abstract Methods, Abstract Schema, Interfaces And Concrete Classes? What is the difference between each one of them? Give examples of, in which real time situation we use Interfaces, Abstract and concrete classes. Which one is better?
Can we have abstract classes without concrete methods?
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