27. You want to reduce the amount of Java coding in your JSP using a JavaBean component. (Hint: Use with the name of your bean).
Simple Interest Calculation Using Java Beans (Form Beans)
index.jsp
<html>
<head>
<title>EX-23</title>
<style>
.abc
{
background:#ababff;
position:absolute;
top:2in;
hieght:200px;
width:400px;
left:5in;
border-style:solid;
}
</style>
</head>
<body>
<div class="abc" id="f1">
<br>
<form method="POST" action="result.jsp">
<table align="center">
<tr>
<td colspan=2 align=center><h3>Simple Interest</h3><hr>
</td>
</tr>
<tr>
<td>Amount : </td>
<td><input type="text" name="p"></td>
</tr>
<tr>
<td>Rate :</td>
<td><input type="text" name="r"></td>
</tr>
<tr>
<td>Time :</td>
<td><input type="text" name="n"></td>
</tr>
<tr>
<td colspan=2 align=center>
<hr>
<input type="submit" value="Calculate">
<input type="reset" value="Clear">
</td>
</tr>
</table>
</form>
</div>
</body>
</html>
result.jsp
<html>
<head>
<title>EX-23</title>
<style>
.abc
{
background:#ababff;
position:absolute;
top:2in;
hieght:200px;
width:400px;
left:5in;
border-style:solid;
}
</style>
</head>
<BODY>
<CENTER>
<jsp:useBean id="si" class="bsr.SimpleIntrest" />
<jsp:setProperty name="si" property="*" />
<div class="abc" id="f1">
<br>
<table width="50%" align="center">
<tr>
<th colspan=2><h3> Simple Interest</h3><hr></th>
</tr>
<tr>
<td>Amount : </td>
<td><jsp:getProperty name="si" property="p" /></td>
</tr>
<tr>
<td>Rate :</td>
<td><jsp:getProperty name="si" property="r" /></td>
</tr>
<tr>
<td>Time :</td>
<td><jsp:getProperty name="si" property="n" /></td>
</tr>
<tr>
<td>Interest :</td>
<td><jsp:getProperty name="si" property="intrest" /></td>
</tr>
<tr>
<th colspan=2> <hr><a href="index.jsp">Home</a></th>
</tr>
</table>
</form>
</div>
</body>
</html>
SimpleIntrest.java
package bsr;
public class SimpleIntrest
{
private float p=1;
private float r=1;
private float n=1;
// Principal Amount
public float getP()
{
return(p);
}
public void setP(float v)
{
this.p = v;
}
// Rate of Interest
public float getR()
{
return(r);
}
public void setR(float v)
{
this.r = v;
}
// Number of Years
public float getN()
{
return(n);
}
public void setN(float v)
{
this.n = v;
}
//Calculate Interest
public float getIntrest()
{
return((p*r*n)/100);
}
}
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