How do I use an arraylist<object> ?

[AlarV]

I've created a class by using UML, and I have as objects Houses and Owners. I wanted an owner to have more than one houses, so I set navigable association and multiplicity 1...*.

So in the class an arraylist<house > Houses; has been created. How do I create this array in Main.java?

I know how to do this with 1 object, e.g.

    Owner X=new Owner();
    House myhouse=new House();
    X.setHouses(myhouse);

but I don't know how to use it with an array.

Thanks in advance for the replies!

[sukatoa]

use HashMap<Owner,ArrayLis t<House>>

[Frinavale]

I'm not sure how a HashMap is going to help out here.
Then again, I'm not sure what the problem is exactly...

In your Owners class you have a method "setHouses" that takes a House object as a parameter. The "setHouses" method should add the House to the arraylist (or if you like a HashMap) of Houses.

-Frinny