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What is data type of textbox [JSP]  RSS feed

 
Novita Sihombing
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When I wrote:
String a=request.getParameter("username");
where username is a textbox (<input type="textbox" name="username">

But when I want to know length of that string "a" by using a.length, it doesn't work.

Can somebody help me, what is the problem?
 
Manesh Kumar
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It should be
a.length()
. It is function call not a field in String class.

The length field holds good for array objects.
 
Ben Souther
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The return type for getParameter is String.

It will return null if the parameter you're looking for doesn't exist in the request.
 
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