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Arraylist catastrophe

1 reply on 1 page. Most recent reply: Nov 24, 2002 7:06 AM by Don Hill

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Nick

Posts: 1
Nickname: unclerory
Registered: Nov, 2002

Arraylist catastrophe

Posted: Nov 23, 2002 3:46 PM

Help! Help!

I know how to place objects into an arraylist ie

myArrayList.add(new myObject());

but when I try to use these objects and their methods I fall over. What am I doing wrong.
The way I have tried doing it is thus:

myArrayList.get(1).myObjectsMethod()

Why does it not work?

any help would be appreciated
Nick

Don Hill

Posts: 70
Nickname: ssswdon
Registered: Jul, 2002

Re: Arraylist catastrophe

Posted: Nov 24, 2002 7:06 AM

When dealing with arraylist you should use the iterator or turn to a array. I think you could do what you are but how does a Object ( this is what is returned by the get()) know of your method, you need to cast to your class type.

like
((myObject)myArrayList.get(1)).myObjectsMethod()

HTH

> Help! Help!
>
> I know how to place objects into an arraylist ie
>
> myArrayList.add(new myObject());
>
> but when I try to use these objects and their methods I
> fall over. What am I doing wrong.
> The way I have tried doing it is thus:
>
> myArrayList.get(1).myObjectsMethod()
>
> Why does it not work?
>
> any help would be appreciated
> Nick

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