What are annotations and how do they actually work for frameworks like Spring?

Posted by Rachel on Stack Overflow See other posts from Stack Overflow or by Rachel
Published on 2010-05-09T15:46:55Z Indexed on 2010/05/09 16:08 UTC
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spring

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spring-framework

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spring-mvc

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java

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frameworks

I am new to Spring and now a days I hear a lot about Spring Framework. I have two sets of very specific questions:

Set No. 1:

What are annotations in general ?
How does annotations works specifically with Spring framework ?
Can annotations be used outside Spring Framework or are they Framework specific ?

Set No. 2:

What module of Spring Framework is widely used in Industry ?
I think it is Spring MVC but why it is the most used module, if am correct or correct me on this ?

I am newbie to Spring and so feel free to edit this questions to make more sense.

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