It depends on whether or not you are planning to use catID for something else.
If your concern is that a new string object will be made in the while loop,
don't worry about it. That's going to happen either way. I think the issue is
going to come down to reusing catID. If you aren't going to reuse it (you
aren't in your examples), then I say go with the first snippet. Because whether
you are going to make a new string object either way.
--- Sushil Singh <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I am having a basic object reference question. Consider the following
> code snippet:
> while (rootRs.next())
> {
>
> categories.addElement(getCategory(rootRs.getString("cat_id")));
> }
>
> Another code snippet:
> String catID = "";
> while (rootRs.next())
> {
> catID = rootRs.getString("cat_id");
> categories.addElement(getCategory(catID));
> }
>
> Now my question is which one is better? When we say
>
> categories.addElement(getCategory(rootRs.getString("cat_id")));
>
> then we are getting a reference to the resultset string object or its
> new object. If its a new String object, then the while loop will be
> creating n no of objects throughout the loop!!!
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