Program 1
<!DOCTYPE html>
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<html>
<head>
<title>TODO supply a title</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
</body>
</html>
Program 2
<%--
Document : CtoF
Created on : Jan 8, 2024, 12:56:49 PM
Author : admin
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<center>
<form>
<table border="1">
<tr>
<th>Enter Celsius</th>
<td><input type="text" name="txtc"></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="Fahrenheit"></td>
</tr>
</table>
</form>
<%
String str=null;
str=request.getParameter("txtc");
if(str!=null)
{
double c,f;
c=Double.parseDouble(str);
f=((c*9)/5)+32;
out.println("<font color=red size=6>Fahrenheit=</font> " + "<font size=6>"+f + "</font>");
}
%>
</center>
</body>
</html>
Program 3
<%--
Document : CtoF
Created on : Jan 8, 2024, 12:56:49 PM
Author : admin
--%>
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<center>
<form>
<table border="1">
<tr>
<th>Enter Fahrenheit</th>
<td><input type="text" name="txtf"></td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="Celsius"></td>
</tr>
</table>
</form>
<%
String str=null;
str=request.getParameter("txtf");
if(str!=null)
{
double c,f;
f=Double.parseDouble(str);
c=((f-32)*5)/9;
out.println("<font color=red size=6>Celsius=</font> " + "<font size=6>"+ c + "</font>");
}
%>
</center>
</body>
</html>