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Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes and ...

Java’s built-in access control won’t let you expose fields and methods (members) to some classes in a package, while hiding them from other classes in that same package. In this article, I’ll show you ...

I recently returned from JavaOne 2005 in San Francisco. The show was impressive for a number of reasons. The attendance seemed to be about 30% larger than last year's. The same could be said for the ...