JSTL: Format Percent
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %><%@ taglib uri="http://java.sun.com/jstl/fmt" prefix="fmt" %> <html> <head> <title>Format Percent</title> </head> <body> <form method="POST"> <table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="62%" id="AutoNumber1"> <tr> <td width="100%" colspan="2" bgcolor="#0000FF"> <p align="center"> <b> <font color="#FFFFFF" size="4">Number Formatting</font> </b> </p> </td> </tr> <tr> <td width="47%">Enter a percent to be formatted:</td> <td width="53%"> <input type="text" name="num" size="20" /> </td> </tr> <tr> <td width="100%" colspan="2"> <p align="center"> <input type="submit" value="Submit" name="submit" /> <input type="reset" value="Reset" name="reset" /> </p> </td> </tr> </table> <p> </p> </form> <c:if test="${pageContext.request.method=='POST'}"> <table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="63%" id="AutoNumber2"> <tr> <td width="100%" colspan="2" bgcolor="#0000FF"> <p align="center"> <b> <font color="#FFFFFF" size="4">Formatting: <c:out value="${param.num}" /> </font> </b> </p> </td> </tr> <tr> <td width="51%">type="percent"</td> <td width="49%"> <fmt:formatNumber type="percent" value="${param.num}" /> </td> </tr> <tr> <td>type="percent" maxIntegerDigits="3"</td> <td> <fmt:formatNumber type="percent" maxIntegerDigits="3" value="${param.num}" /> </td> </tr> <tr> <td>type="percent" minIntegerDigits="10"</td> <td> <fmt:formatNumber type="percent" minIntegerDigits="10" value="${param.num}" /> </td> </tr> <tr> <td>type="percent" maxFractionDigits="3"</td> <td> <fmt:formatNumber type="percent" maxFractionDigits="3" value="${param.num}" /> </td> </tr> <tr> <td>type="percent" minFractionDigits="10"</td> <td> <fmt:formatNumber type="percent" minFractionDigits="10" value="${param.num}" /> </td> </tr> <tr> <td>type="percent" maxFractionDigits="3" groupingUsed="false"</td> <td> <fmt:formatNumber type="percent" maxFractionDigits="3" groupingUsed="false" value="${param.num}" /> </td> </tr> </table> </c:if> </body> </html>