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Answer to Question #25591 in Java | JSP | JSF for Ikanor Lika

Question #25591
please, explain these to me using simple english.


String name = session.getAttribute("name"),

String prodID=request.getParameter("productID");
//int no=Interger.parseInt(prodID);
int sumcount=0;,
Expert's answer
Going line after line =) if(name.matches(userId),
String name =session.getAttribute("name"),

in case String variable called name matches regex pattern(regex is a regular expressions language) stored in userId variable
String name will get value, stored in the session (session is a personaldata store for any user, visiting the page, you can put anything there and
retrieve things you've stored there.) by the key 'name'


Left part is similar to the previous line.'request.getParameter("productID")' retrieving info stored in the
HTTPRequest sent by user to the server. (both POST and GET requests) with
attribute name='productID'

//int no=Interger.parseInt(prodID);
commented code. will do nothing. uncomment it and it willtransform info from prodID to integer, or will crash if non0numeric data is
stored or null int sumcount=0; - variable declaration

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