ebbillform.html
<html>
<body>
<form action="ebbillcalc.jsp" method="post">
<h2><div style="text-align:center">TAMILNADU ELECTRICITY BOARD</div></h2>
<table BORDER="1" >
<CAPTION><EM> ELECTRICITY BILL</EM></CAPTION>
<tr rowspan="2">
<th> Consumer Name:</th>
<td><input type="text" name="conname"></td>
</tr>
<tr>
<th> Connection no:</th>
<td><input type="text" name="conno"></td>
</tr>
<tr>
<th> Date:</th>
<td><input type="text" name="condate"></td>
</tr>
<tr>
<th> Zone Name:</th>
<td><input type="text" name="conzn"></td>
</tr>
<tr>
<th>Previous meter reading :</th>
<td><input type="text" name="conpmr"></td>
</tr>
<tr>
<th> Current meter reading:</th>
<td><input type="text" name="concmr"></td>
</tr>
</table>
</br></br></br>
<input type="submit" value="Submit" />
</form>
</body>
</html>
ebbillcalc.jsp
<%@ page import="java.io.*"%>
<%@ page import="java.lang.*"%>
<%@ page import="java.lang.util.*"%>
<%@ page import="javax.servlet.ServletException"%>
<%@ page import="javax.servlet.http.HttpServletRequest"%>
<html>
<body>
<%
try{
String cname=request.getParameter("conname");
String cno=request.getParameter("conno");
String cndate=request.getParameter("condate");
String cnzn=request.getParameter("conzn");
String cnpmr=request.getParameter("conpmr");
String cncmr=request.getParameter("concmr");
int cnpmr1=Integer.parseInt(cnpmr);
int cncmr1=Integer.parseInt(cncmr);
int units=cncmr1-cnpmr1;
int runits=units-100;
double tamt=0.0;
if (runits > 100){
if (runits >= 200){
tamt=tamt+(100.0*2.00);
}else{
tamt=tamt+(runits*2.00);
}}
if (runits > 201){
if (runits > 400){
tamt=tamt+(200.0*4.00);
}else{
runits=runits-100;
tamt=tamt+(runits*4.00);
}
}
if (runits > 400){
if(runits > 600){
tamt=tamt+(runits*6.00);
} else{
runits=runits-400;
tamt=tamt+(runits*6.00);
}
}
%>
<form target="_blank">
<h2><div style="text-align:center">TAMILNADU ELECTRICITY BOARD</div></h2>
<table BORDER="1" >
<CAPTION><EM> ELECTRICITY BILL</EM></CAPTION>
<tr rowspan="2">
<th> Consumer Name:</th>
<td><input type="text" name="conname" value=<%=cname%>></td>
</tr>
<tr>
<th> Connection no:</th>
<td><input type="text" name="conno" value=<%=cno%>></td>
</tr>
<tr>
<th> Date:</th>
<td><input type="text" name="condate" value=<%=cndate%>></td>
</tr>
<tr>
<th> Zone Name:</th>
<td><input type="text" name="conzn" value=<%=cnzn%>></td>
</tr>
<tr>
<th>Previous meter reading :</th>
<td><input type="text" name="conpmr"value=<%=cnpmr%>></td>
</tr>
<tr>
<th> Current meter reading:</th>
<td><input type="text" name="concmr" value=<%=cncmr%>></td>
</tr>
<tr>
<th> Units consumed:</th>
<td><input type="text" name="conunits" value=<%=units%>></td>
</tr>
<tr>
<th> Amount to be paid:</th>
<td><input type="text" name="conamt" value=<%=tamt%>></td>
</tr>
</table>
</form>
<%
}
catch(NumberFormatException exp){
out.println("There is something wrong:"+exp);
}
%>
</body>
</html>
OUTPUT:
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