What is the Commons Lang and how do I use it? (Java)

I was trying to find a way to do some string manipulation and ran across the Commons Lang in a response to another question posted here on stackoverflow. From what I can tell it's a collection of libraries, do I have to download and somehow im开发者_如何学运维port this to eclipse?

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Commons Lang as you put it is just a general purpose common library that provides a number of useful features.

To use it you need to download the JAR and add it to the Java Build path in Eclipse. See:

http://www.informit.com/articles/article.aspx?p=367962

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Commons Lang is a library from Apache that you can download and include in your project like any other 3rd party jar.