Accessing class functions in a list..

Hello,

I created a custom class called Rooms with all the appropriate setters and getters.

I iterated through a csv file and input all of the data into my custom object class and then put that object into a list by using list.add().

Now I want to access the class methods through the use of the list.. how can I do so?

-ET

Code:

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for(int i = 0; i < list.size(); i ++) {
  Room r = (Room).list.get(i);
  r.doWhatever();
}

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I'm getting a minor error.. probably because of Syntax?

How I declared my list:
List list = new ArrayList<Rooms>(); // List implemented as growable array

Rooms xxx = (Rooms).list.get(20);

Says illegal start of type error..

If you're going to use generics, don't use them half-way. Make your list a List<Rooms> :

Code:

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List<Rooms> list = new ArrayList<Rooms>();
//....
Rooms myRoom = list.get(20);

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Then no need to cast at all.

Otherwise, if you absolutely must cast, you'll need change this:

Code:

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Rooms xxx = (Rooms).list.get(20);

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to this:

Code:

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Rooms xxx = (Rooms)list.get(20); // no period after the cast.

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Cross-post: New To Java - Accessing class functions in a list

OP, keep cross-posting without telling us and no one is going to want to answer your question on this or other fora. Just FYI.

Sorry about that, I didn't know that it was frowned upon to do so. It's my first time posting for help and I didn't know which forums would get me a speedier reply. Thanks for the heads up.

Quote:

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Originally Posted by ruerric

Sorry about that, I didn't know that it was frowned upon to do so. It's my first time posting for help and I didn't know which forums would get me a speedier reply. Thanks for the heads up.

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Thanks for the understanding. To know more about why this bugs many, please look here: JavaRanch - Be Forthright When Cross Posting To Other Sites