Milan Bakotra

//HTML FILE <form action="http://localhost/servlet/Servlet3_insert_db" method="get">         ID : <input type="Text" name="id"><br><br>         Username : <input type="Text" name="unm"><br><br>         Password : <input type="Text" name="pass"><br><br>                     <input type="submit" name="sb" value="submit">             </form>  //Servlet Databse Insert Operation import javax.servlet.*; import javax.servlet.http.*; import java.io.*; import java.sql.*; import pack.database_connection; public class Servlet3_insert_db extends HttpServlet {     public void doGet(HttpServletRequest req, HttpServletResponse res)     throws ServletException, IOException     ...

 // 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>...

 // Simple HelloWorld Program import javax.servlet.*; //Servlet Hello World Program import javax.servlet.http.*; import java.io.*; public class Servlet1 extends HttpServlet {     private String str;     public void init() throws ServletException     {         str = "Hello World";     }     public void doGet(HttpServletRequest req, HttpServletResponse res)     throws ServletException, IOException     {         res.setContentType("text/html");         PrintWriter out = res.getWriter();         out.println("<h1>" + str + "<h1>");     }     public void destroy()     {         //do Nothing.     } }