Saturday, January 26, 2013

Why THIS has to be THIS only ??

This post is a placeholder of references to certain questions for which there is no definitive answer, but always good to know.

1. Why do we need abstract classes in Java? In other words whats the difference between an abstract class and a concrete class?

Check out here :

2. Why NULL isn't nothing or empty string in Oracle?

A lot of time and lot of effort has been spent on this. Well that's how Oracle behaves. However there are ways in which this can be handled.

Check out here :

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