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Inheritance: what's the output?

Leandro Coutinho
Ranch Hand

Joined: Mar 04, 2009
Posts: 417
Leandro Coutinho
Ranch Hand

Joined: Mar 04, 2009
Posts: 417
I got surprised with the result. I thought instances of the super classes were always created before the child classes, but, based on the result, it seems that it is not what happen.
It's more like the not private members of the super class are included inside the child class, and you can use "super" and "this" more like a namespace ...
Henry Wong
author
Sheriff

Joined: Sep 28, 2004
Posts: 18103
    
  39

Leandro Coutinho wrote:I got surprised with the result. I thought instances of the super classes were always created before the child classes, but, based on the result, it seems that it is not what happen.
It's more like the not private members of the super class are included inside the child class, and you can use "super" and "this" more like a namespace ...


Well... yeah. That's how it works. When you create an instance (with the new operator), there is only one instance. Large inheritance trees don't generate lots of objects..... And the private members of the super class are included too.

Henry


Books: Java Threads, 3rd Edition, Jini in a Nutshell, and Java Gems (contributor)
 
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