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From: Popping mad <rainbow@colition.gov>
Newsgroups: comp.lang.java.programmer
Subject: Re: Why does Java argue about making a class instance
Date: Mon, 28 Mar 2016 13:19:35 +0000 (UTC)
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On Sat, 26 Mar 2016 21:01:58 +0100, Joerg Meier wrote:

> In case you are unaware of what is happening: CollectVarsVisitor is a
> non-static nested class, also called an "inner class". If you want to do
> "new CollectVarsVisitor()", you need an instance of Main - you could do
> "new Main().new CollectVarsVisitor()" (that would be solution b).

why is that the case?
Because it is in the curly braces of Main, or because it is in the file 
itself?