Servlets are rarely accessed by typing their URL directly into the browser. The most common use for servlets is to process data entered by users in an HTML form. In this section, we illustrate this process.
The HTML file containing the form for our application looks like this:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Data Entry Page</title>
</head>
<body>
<form method="post" action="formhandlerservlet">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td>Please enter some text:</td>
<td> <input type="text" name="enteredValue" /> </td>
</tr>
<tr>
<td></td>
<td><input ...
