📄 compound.jsp
字号:
<%@ page errorPage="error.jsp" %>
<%!
public double calculate(double amount, double interest, int period) {
if(amount <= 0) {
throw new IllegalArgumentException("Amount should be greater than 0: " + amount);
}
if(interest <= 0) {
throw new IllegalArgumentException("Interest should be greater than 0: " + interest);
}
if(period <= 0) {
throw new IllegalArgumentException("Period should be greater than 0: " + period);
}
return amount*Math.pow(1 + interest/100, period);
}
%>
<html>
<head>
<title>Compound</title>
</head>
<body style="font-family:verdana;font-size:10pt;">
<%@ include file="header.html" %>
<%
double amount = Double.parseDouble(request.getParameter("amount"));
double interest = Double.parseDouble(request.getParameter("interest"));
int period = Integer.parseInt(request.getParameter("period"));
%>
<b>Pincipal using compound interest:</b>
<%= calculate(amount, interest, period) %>
<br/><br/>
<jsp:include page="footer.jsp"/>
</body>
</html>⌨️ 快捷键说明
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