I am a Java beginner. This time, I will output about the getParameter method.

Q1: What is the getParameter method?

A: It is a method ** to get the data sent from the form on the client side from the objects of the "HttpServletRequest" interface **. The part in bold above is called the request parameter

How to use getParameter method?

** Request parameters are sent in "name" and "value" pairs **

`sample.java`


request.getParameter("HTML name attribute value");

By setting the HTML name attribute value, you can get the value of the value attribute written as a set with the name attribute.

Notes on getParameter ()

All the values obtained by getParameter will be ** String **.

What if you want an int type or someone else? You may think that. If you want to make it int type You can make it a number with ʻInteger.parseInt () . (Example) Integer.parseInt (request.getParameter ("HTML name attribute value "));` As mentioned above, it is possible to convert to other types, so please convert to the required type according to the situation.

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