Basic User Input & Output

Steps:

1. Prepare HTML or JSP Page to accept user input.
2. Retrive Information from the HTML or JSP page & Displaying it on to the Servlet.

Step 1 :  Prepare HTML or JSP Page to accept user input.

Enter the following code snippet in the body tag of the HTML or JSP Page.

<form action="resultservlet">//action is used to go to the servlet when user clicks OK.
       Name : <input type="text" name="username"/>
       Email ID : <input type="text" name="email"/>
       <input type="submit" value="OK"/>
</form>

Step 2 :  Retrive Information from the HTML or JSP page & Displaying it on to the Servlet..

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException,IOException
{
  //retriving & storing user input in the String Variables
  String  name = request.getParameter("username");
  String eid = request.getParameter("email") ; 

 //displaying output to the user as simple text
 response.getWriter().println("Hello" + name + ", Your Email ID is "  + eid);
}