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From: Lew <lewbloch@gmail.com>
Newsgroups: comp.lang.java.help
Subject: Re: Enum basics
Date: Sat, 5 Nov 2011 00:51:50 -0700 (PDT)
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John B. Matthews wrote:
> Lew wrote:

...
>> Boom.  Second question answered.  No, an enum cannot access an=20
>> enclosing class's instance members.  What's the big mystery?
>=20
> D'oh, I misread the question, thinking of _static_ members of the=20
> enclosing class; Roedy clearly said _instance_.

Yeah, I had to reread the post a couple of times to make sure I had the sen=
se of it right way 'round.

As for my post upthread, the "you" there was the generalized "you, the read=
er", not you the poster.  I was writing a post, not an email, so what I sai=
d was not meant for anyone to take personally but in the spirit of an essay=
.

Just in case, you know.

As for the distinction between "nested" (i.e., static) and "inner" (instanc=
e) classes, I have been much more sensitive to the fine distinction after e=
ncountering the interesting edge case of an inner class that inherits from =
its containing class and accesses the latter's private members.


package eegee;
public class Outer
{
  private String foo()
  {
    return "Outer.foo() ";
  }

  protected String bar()
  {
    return "Outer.bar() ";
  }

  class Inner extends Outer
  {
    public String foo()
    {
      return "Inner.foo() ";
    }

    public String bar()
    {
      return "Inner.bar() ";
    }
  }

  public static void main(String [] args)
  {
    Outer encloser =3D new Outer();
    Inner inner =3D encloser.new Inner();
    Outer outer =3D inner;
    System.out.println("encloser: " + encloser.foo() + encloser.bar());
    System.out.println("   outer: " + outer.foo() + outer.bar());
    System.out.println("   inner: " + inner.foo() + inner.bar());
  }
}

Of course, @Override helps here.

--=20
Lew