Regular Expression for multiple emails

Hi! I have a jsp page that has an inputTextArea so the user can enter multiple email addresses. In the backing bean (after they submit) I tokenize thru it and add email addresses to an arraylist. I want to validate that they are correct format before adding to arraylist, but how do I do that in the backing bean? All regular expression examples I have seen are in jsp page and javascript. Any sample code / suggestions would be greatly appreciated - as I have not had much experience with regular expressions. Thanks!

Hi,
this could be a solution for your problem; I've created two regular expressions to find valid email- and http-addresses in fulltext or xml-text fields ;-)
HTTP:
(\\s|>|^)(?!(@|/|\\.))(http://|https://|ftp://|sftp://|www\\.)([A-Za-z0-9_-]{2,}\\.)+[A-Za-z]{2,4}[:]?(/|\\?|\\&|\\;|\\%|=|\\.|\\#|_|-|[A-Za-z0-9])*(?!(@))(?<=([A-Za-z0-9=]+))(\\s|\\W|_|<|$)
eMail:
(\\s|>|^)(?!(:|www\\.|\\.))[A-Za-z0-9_.-]+@([A-Za-z0-9_-]+\\.)+[A-Za-z]{2,4}(\\s|\\W|_|<|$)
sincerely
Hans Georg Filipp

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Oh ok. If domain names can begin with numbers and its valid, then I'do like to incorporate it. Thanks for the info.
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