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variable conventions in ruby

 
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I was reading a tutorial on Ruby which talks about variable name conventions such a class name variable must start with "@@". Why is this required .. why not let the developer to take the decision?
 
author and iconoclast
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In Java, you always declare variables, and you use "static" to make something a class variable. In Ruby, you don't declare things, and you use naming conventions to tell Ruby what kind of a thing it is. Just how it works.
 
Pradeep bhatt
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Thanks
 
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I think Ruby's name convention is better than Java
 
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