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What Does it Mean to Pass a Generic Class Itself as a Parameter?

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From	KevinSimonson <kvnsmnsn@hotmail.com>
Newsgroups	comp.lang.java.programmer
Subject	What Does it Mean to Pass a Generic Class Itself as a Parameter?
Date	Mon, 10 Oct 2011 08:01:34 -0700 (PDT)
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I'm currently taking a class pretty much each week to prepare for the
SCJP exam.  In the classes we usually go over practice exams and try
to figure out what the right answer is to a number of the questions.
After the chapter on Generics, one of the questions involved a class
like the one I call {Wierd} here.  It was kind of of the form:

public class Wierd< T extends Wierd>
{
  public Wierd ()
  {
  }
}

and then we had a class of the form:

public class Hmm
{
  public static void main ( String[] arguments)
  {
    Wierd< Wierd> wow = new Wierd< Wierd>();
  }
}

Can anyone tell me what's going on here?  In {Wierd} itself is the
{Wierd} that's being extended in the angle brackets the same {Wierd}
that's being defined in this file?  And what exactly is happening in
{main()} when I declare {wow} to be a {Wierd< Wierd>} object?  I'd
really appreciate it if someone could explain this to me.

Kevin Simonson

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What Does it Mean to Pass a Generic Class Itself as a Parameter? KevinSimonson <kvnsmnsn@hotmail.com> - 2011-10-10 08:01 -0700
  Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Jeff Higgins <jeff@invalid.invalid> - 2011-10-10 12:11 -0400
    Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Jeff Higgins <jeff@invalid.invalid> - 2011-10-10 12:56 -0400
  Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? markspace <-@.> - 2011-10-10 09:12 -0700
    Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Patricia Shanahan <pats@acm.org> - 2011-10-10 09:31 -0700
      Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Lew <lewbloch@gmail.com> - 2011-10-10 12:12 -0700
        Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2011-10-10 13:32 -0700
          Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Jeff Higgins <jeff@invalid.invalid> - 2011-10-10 16:40 -0400
          Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Lew <lewbloch@gmail.com> - 2011-10-10 14:29 -0700
  Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Screamin Lord Byron <scre@min.dot> - 2011-10-10 19:07 +0200
  Re: What Does it Mean to Pass a Generic Class Itself as a Parameter? Jeff Higgins <jeff@invalid.invalid> - 2011-10-11 02:08 -0400

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