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Quick ArrayList Question

Ben Jass
Ranch Hand

Joined: Sep 25, 2010
Posts: 76
Hey guys, Let's say I have three classes: Polygon, Rectangle, and Oval. Both Oval and Rectangle extend Polygon. So now I'm creating a new ArrayList that I want to hold Polygons and anything that is-a polygon (Rectangle, Oval, etc.).

How can I make an ArrayList take Polygon objects, and any object that is a subclass of Polygon?

Just simply doing this:

Does not work.
Jeanne Boyarsky
author & internet detective

Joined: May 26, 2003
Posts: 32088

What error do you get? The following compiles and runs.

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Ben Jass
Ranch Hand

Joined: Sep 25, 2010
Posts: 76
Pointless thread, I guess it works now heh.
I agree. Here's the link:
subject: Quick ArrayList Question