Comparators allow you to sort based on however many columns you want.
See the docs for Comparator, from
http://java.sun.com/j2se/1.3/docs/api/index.html for more information. If
you still need help after checking the API, send another email and I'll see
what time I can find to write an example.
>From: Jerson Chua <[EMAIL PROTECTED]>
>Reply-To: A mailing list about Java Server Pages specification and
> reference <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Sorting line items in a ShoppingCart
>Date: Mon, 12 Feb 2001 18:48:13 +0800
>
>Hi...
>For example, if I have a ShoppingCart object which contains an ArrayList of
>lineItem objects. Each lineitem object contains the attribute productName,
>productPrice, productCode, and quantity.
>
>Here's the expected behavior.
>
>For example... initially it's sorted by
>productCode, productName, productPrice, and quantity.
>
>If the user clicks productName then it will be sorted by
>productName, productCode, productPrice, and quantity.
>
>If the user clicks productPrice then it will be sorted by
>productPrice, productName, productCode, and quantity.
>
>and so on...
>
>Initially I planned to use Comparator but this can only be used for sorting
>a single column.
>
>How do I implement such functionality?
>
>thank you very much your help will be very much appreciated.
>
>Jerson
>
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>Some relevant FAQs on JSP/Servlets can be found at:
>
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Some relevant FAQs on JSP/Servlets can be found at:
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