<div>
Best to validate with regex<br />
<br />
<a href="http://www.codetoad.com/asp_email_reg_exp.asp" rel="ugc">http://www.codetoad.com/asp_email_reg_exp.asp</a>
</div>


Best to validate with regex

http://www.codetoad.com/asp_email_reg_exp.asp [http://www.codetoad.com/asp_email_reg_exp.asp]

<div>
In Java those escape character \ need to be doubled
</div>


In Java those escape character \ need to be doubled

<div>
Thanks<br />
<br />
Can we use Regex in java servlet classes?
</div>


Thanks

Can we use Regex in java servlet classes?

<div>
Yes, sure. You need to import the correct package.
</div>


Yes, sure. You need to import the correct package.

<div>
<a href="http://java.sun.com/j2se/1.5.0/docs/api/java/util/regex/package-summary.html" rel="ugc">http://java.sun.com/j2se/1.5.0/docs/api/java/util/regex/package-summary.html</a>
</div>


http://java.sun.com/j2se/1.5.0/docs/api/java/util/regex/package-summary.html [http://java.sun.com/j2se/1.5.0/docs/api/java/util/regex/package-summary.html]

<div>
some discussion here for you:<br />
<br />
<a href="http://forum.java.sun.com/thread.jspa?threadID=596011&messageID=3361160" rel="ugc">http://forum.java.sun.com/thread.jspa?threadID=596011&messageID=3361160</a><br />
<a href="http://forum.java.sun.com/thread.jspa?threadID=609480&messageID=3338604" rel="ugc">http://forum.java.sun.com/thread.jspa?threadID=609480&messageID=3338604</a><br />

</div>


some discussion here for you:

http://forum.java.sun.com/thread.jspa?threadID=596011&messageID=3361160 [http://forum.java.sun.com/thread.jspa?threadID=596011&messageID=3361160]
http://forum.java.sun.com/thread.jspa?threadID=609480&messageID=3338604 [http://forum.java.sun.com/thread.jspa?threadID=609480&messageID=3338604]


<div>
This shows how to do it for e-mail in Java:<br />
<br />
<a href="http://java.sun.com/developer/technicalArticles/releases/1.4regex/" rel="ugc">http://java.sun.com/developer/technicalArticles/releases/1.4regex/</a>
</div>


This shows how to do it for e-mail in Java:

http://java.sun.com/developer/technicalArticles/releases/1.4regex/ [http://java.sun.com/developer/technicalArticles/releases/1.4regex/]

<div>
Thanks<br />
<br />
Each of these links seem to recommend a different pattern. <br />
<br />
I thought as the email address format can take many forms.<br />
<br />
If I just tested these was a single @ and atleast 1 (.) symbol after the @. This was really all I could test for.<br />
<br />
Does this seem correct? 
</div>


Thanks

Each of these links seem to recommend a different pattern.

I thought as the email address format can take many forms.

If I just tested these was a single @ and atleast 1 (.) symbol after the @. This was really all I could test for.

Does this seem correct?

<div>
Patterns can be different and there are different ways to achieve the same thing
</div>


Patterns can be different and there are different ways to achieve the same thing

<div>
Apparently, the expression that validates email addresses per RFC 822 is 6343 characters long ;-)<br />
<br />
<a href="http://www.regular-expressions.info/email.html" rel="ugc">http://www.regular-expressions.info/email.html</a>
</div>


Apparently, the expression that validates email addresses per RFC 822 is 6343 characters long ;-)

http://www.regular-expressions.info/email.html [http://www.regular-expressions.info/email.html]

<div>
Try the one posted on Sun's web-site, for a start.
</div>


Try the one posted on Sun's web-site, for a start.

<div>
Simplest algorithm:<br />
<br />
Use java built in validator, then apply the folloiwng:<br />
<br />
Check indexOf(@) &gt;&nbsp;-1 and indexOf(.) &gt;&nbsp;indexOf(@)<br />
Split(@) - you should have an array length 2<br />
spli(.) - you should have an array AT LEAST length 2<br />
<br />
colr__
</div>


Simplest algorithm:

Use java built in validator, then apply the folloiwng:

Check indexOf(@) > -1 and indexOf(.) > indexOf(@)
Split(@) - you should have an array length 2
spli(.) - you should have an array AT LEAST length 2

colr__

<div>
<div class="content wysiwyg-content">
Hello,<br />
<br />
I am trying to require a basic validation rule to check an email address.<br />
<br />
My plan was to use indexOf to test for the @ symbol.<br />
<br />
I also wanted to check there was somewhere after the @ symbol an (.)<br />
<br />
Does anyone know if I could use the indexOf method to test for the . after the @?<br />
<br />
Thank you
</div>
</div>


Hello,

I am trying to require a basic validation rule to check an email address.

My plan was to use indexOf to test for the @ symbol.

I also wanted to check there was somewhere after the @ symbol an (.)

Does anyone know if I could use the indexOf method to test for the . after the @?

Thank you

Validating string email?

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