accessing multiple variables with i

Question

If I have variable1, variable2 and variable 3. Is there anyway to get that variable with i?

Such as getting variablei , where i = 1.

Following code I think illustrates what I am talking about.

    ArrayList networkSetupData = new ArrayList(count);
    for(int i =0 ; i != count ; count--)
    {
        networkSetupData.add(dropDown[i]);
    }

Thank you in advance.

It's amazing how you solved your own problem in that code sample. — Perception
– Perception, Commented Nov 22, 2011 at 18:51
in this for loop you continuously add the same value while count != 0. Why do you need such a lot of code. There is a method Collections.nCopies(int n, Object o) which return List of n objects — maks
– maks, Commented Nov 22, 2011 at 19:02
> new ArrayList(count); This set a capacity of List, but not its size. Be careful. — Zernike
– Zernike, Commented Nov 22, 2011 at 19:11

Jon Skeet · Accepted Answer · 2011-11-22 18:50:46Z

4

You should basically restructure your code to have a single array or collection variable instead. You've got three variables which are clearly related, and which you want to access by index: you want a collection.

Instead of declaring dropDown1, dropDown2, dropDown3, you should declare dropDowns either as a List<DropDown> or possibly a DropDown[]. Then you can access them by index at any time.

answered Nov 22, 2011 at 18:50

Jon Skeet

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1 Comment

Halfwarr Over a year ago

Yes, you are correct I can rewrite that section to use an array. Thanks.

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