🚀 go-pugleaf

Hi Kevin,

In Java everything is a 'reference' (except for primitive types, of course).
References are just pointers (in fact, in C++ references are implemented
as pointers under the hood).  You just can't do pointer arithmetic with
references (a la C++).

So, all you would need to do is:

Object[] array1 = new Object[10000];
Object[] array2 = new Object[100];

Object obj = new Object();
array1[0] = obj;
array2[0] = obj;

and voila you have your entries from two arrays referencing a single 
object.

In article <01bd62ec$0c857a40$b2c33081@boylankl>, "Kevin B" 
<boylank@computer.org> wrote:
>Hi,
>
>I'm a C++/Delphi programmer that is fairly new to Java and I'm trying to
>makes some sense of something that is easy in either of these languages but
>not so intuitive in Java (to me).
>
>I'd like to be able to create a couple arrays of objects in Java and I'd
>like to preallocate the arrays so that I don't have the performance problem
>of creating each object separately.  This is no problem as I can just do
>something like...
>
>MyObjectType myObjects[] = new MyObjectType[ 10000 ];
>
>But what I'd like to do is create another array that will only hold a
>subset of the elements from this array.  Since the object that makes up
>each element of this array is fairly large, I'd like for the elements of
>the second array to just be able to POINT at the actual objecs of the first
>array.
>
>This is easy in C++ or Delphi as I can just make the second array be an
>array of pointers (of type MyObjectType) and do something like
>
>myObjects2[i] = &myObjects[j];
>
>But since there are no pointers in Java I'm confused as to how to do this
>or whether this is even possible.  Can somebody straigten me out on this?
>
>TIA!!
>
>Kevin
>

--
James V. Reagan                Sun Certified Java Programmer
Principal Consultant           JPartners, Inc.
mailto:jreagan@jpartners.com   http://www.jpartners.com
Java & OOA/D Consulting, Mentoring, and Development