Get parameters value from the users

 // Get parameters value from the users

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class Servlet2_getparameter extends HttpServlet
{
    public void doGet(HttpServletRequest req, HttpServletResponse res)
    throws ServletException, IOException
    {
        res.setContentType("text/html");
        PrintWriter out = res.getWriter();

        out.println("<h1>" + req.getParameter("first_name") + "</h1>"
            + "\n" +
            "<h1>" + req.getParameter("last_name") + "</h1>");
    }
}

//HTML FILE.

<form action="http://localhost/servlet/Servlet2_getparameter" method="get">
        First Name : <input type="Text" name="first_name"><br><br>
        Last Name : <input type="Text" name="last_name"><br><br>

                    <input type="submit" name="sb" value="submit">       
    </form>