JavaBean的代码
package cn.edu.jxau;
public class Rect {
private double sideA;
private double sideB;
private double area;
public double getSideA() {
return sideA;
}
public void setSideA(double sideA) {
this.sideA = sideA;
}
public double getSideB() {
return sideB;
}
public void setSideB(double sideB) {
this.sideB = sideB;
}
public double getArea() {
if(sideA>=0&&sideB>=0)
area=sideA*sideB;
else
area=-1;
return area;
}
}
a.Jsp代码：
<%@page contentType="text/html;charset=gb2312"%>
b.jsp代码
<%@page contentType="text/html;charset=gb2312"%>
边A是:
边B是:
面积是:
