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请教高手

chuliang

发贴: 19

于 2004-10-10 15:02

<%@ page contentType="text/html; charset=GBK" %>
<html>
<head>
<title>汇率转换示例</title>
</head>
<body>
<h3>转换后的结果如下所示：</h3>
<%
//取得被转换的货币
int currencyFrom=Integer.parseInt(request.getParameter("currencyFrom"));
//取得转换的货币
int currencyTo=Integer.parseInt(request.getParameter("currencyTo"));
//声明金额变量
double amount=0;
String amountStr="";
//声明转换后金额的变量
double amountRes=0;
//声明货币字符数组
String[] currencies={"人民币","英镑","美元"};
//声明汇率数组
1:double exchangeRates[][]={{1,0.083,0.125},{12,1,1.5},{8,0.667,1}};
//取得金额字符串
amoutStr=request.getParameter("amount");
try{
//将金额字符串转换为数字
amount=Double.parseDouble(amountStr);
//进行货币转换操作
amountRes=amount*exchangeRates[currencyFrom][currencyTo];
//进行四舍五入操作,保留3位小数
amountRes=Math.round(amountRes*1000);
amountRes/=1000;
out.println("<p>"+amount+currencies[currencyFrom]+"="+amountRes+currencies[currencyTo]+"</p>");
}catch(Exception ex){
//当输入的不是数字时,产生异常
out.println("<p>金额输入框内应该输入数字.</p>");
}
%>
<p><a href="ExchangeRateDemo1.jsp">重新进行汇率转换操作</a></p>
</body>
</html>

为什么会出现这样的问题，问题如下所示：
Generated servlet error:
[javac] Since fork is true, ignoring compiler setting.
[javac] Compiling 1 source file
[javac] Since fork is true, ignoring compiler setting.
[javac] D:\Tomcat4.1\work\Standalone\localhost\myweb\ExchangeRateDemo2_jsp.java:63: not a statement
[javac] 1:double exchangeRates[][]={{1,0.083,0.125},{12,1,1.5},{8,0.667,1}};
[javac] ^
[javac] D:\Tomcat4.1\work\Standalone\localhost\myweb\ExchangeRateDemo2_jsp.java:63: ';' expected
[javac] 1:double exchangeRates[][]={{1,0.083,0.125},{12,1,1.5},{8,0.667,1}};
[javac] ^
[javac] 2 errors

• 我有一点感想和初学者们同享(原创)

话题树型展开

人气	标题	作者	字数	发贴时间
1755	请教高手	chuliang	1695	2004-10-10 15:02
1369	Re:请教高手	nothing	10	2004-10-10 15:40
1534	Re:请教高手	chuliang	26	2004-10-11 08:18
1451	Re:请教高手	nothing	46	2004-10-11 08:52

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