grep code


I was checking below link on grep code

What is grep code what kind of information is provided in grepcode site. I never used it before. please advise
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CPColinSenior Java ArchitectCommented:
Have you read their FAQ?

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mccarlIT Business Systems Analyst / Software DeveloperCommented:
Was it not obvious when you went to that link that it was the actual java code for the DecimalFormat class?
gudii9Author Commented:
so grepcode has info about all java class files like their actual source code(which usually bundled with jdk8 that we download and install)?
mccarlIT Business Systems Analyst / Software DeveloperCommented:
which usually bundled with jdk8 that we download and install
Well, that depends on which one you download and install. If you download and install OpenJDK then yes, it is the actual source code. However you're more likely talking about Oracle's JDK and in that case there could be some slight differences. But for intents and purposes you should think of it being the same.

But also, grepcode keeps source code for other libraries too, such as Spring, etc.
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