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From: Wojtek <nowhere@a.com>
Newsgroups: comp.lang.java.help
Subject: Re: Instantiate an abstract class
Date: Wed, 06 Apr 2011 12:41:58 -0700
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.java.help:562

Rob McDonald wrote :
> abstract class AFoo {
>   void doStuff() {

      AFoo a = getNewInstance();

>   }

public absract AFoo getNewInstance();

> }
>
> class Bar extends AFoo {

@Overrides
public Bar getNewInstance()
{
  return new Bar();
}


> }
>
> class Fred extends AFoo {

@Overrides
public Fred getNewInstance()
{
  return new Fred();
}


> }

So "AFoo a" will hold an instance of whatever class extends AFoo, yet 
it can be cast into the subclass.

-- 
Wojtek :-)