<%@ page contentType="text/html;charset=GB2312" %>
<%@ page import="Circle"%>
<html>
<body bgcolor=pink><font size="3">
<jsp:useBean id="girl" class="Cirlce" scope="page"></jsp:useBean>
<%
girl.setRadius(100);
%>
<p>圆的半径是:
<%=girl.getRadius()%>
<p>圆的周长是:
<%=girl.circlLength()%>
<p>圆的面积是：
<%=girl.circleArea()%>
</font>
</body>
</html>
import java.io.*;
public class Circle
{ int radius;
public Circle()
{ radius=1;
}
public int getRadius()
{ return radius;
}
public void setRadius(int newRadius)
{ radius=newRadius;
}
public double circleArea()
{ return Math.PI*radius*radius;
}
public double circlLength()
{re
