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Is this legal in jsp:useBean...

 
mocca az
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While setting parameter username from request to name property of user bean we can do it two ways.
1) <jsp:setProperty name="user" property=="name" param=="username"/>
2) <jsp:setProperty name="user" property=="name" param==<%= request.getParameter("username") %> />
I'm ok with all this except property== .... Are two equals signs legal? Why?
Any explanation is greatly appreciated...
 
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