Undersøge hvilke instanser man har oprettet.

Bjarne:
If you have an static int counter in your class, and you type in constructors body counter++, any time you make a new object you can have the amount of all of them.
Jose.

Thanks.. But that wasn't quite what I was trying to do. I was looking for a way to get a list of the names of the instance variables created from a certain class (eg. in an array). However, I think I've worked my way around the problem - but if anyone have the golden answer, please reply! :)

Sorry, i didn´t get the point...
but if you make a Vector in your class (or an array of the objects of your class), you can allways write in the constructors body:
nameOfTheVector.add(this);
So, anytime you make an instance, you can save it in the vector or array,
Sounds it better?
Jose.

Actually I was looking for something else.. but your sollution will work just fine, so I'll give you your points anyway.. Thanks :)