-----数据运算-----

操作数 操作数

选择运算符

加法运算 减法运算 乘法运算 除法运算

========================================================

运算

result:

package hall;
public class Yun{

private double data1=0;
private double data2=0;
private int sign=0;
private double result=0;

public Yun(){
}
public void setData1(double data1)
{
this.data1 = data1;
}
public double getData1(){
return this.data1;
}
public void setData2(double data2)
{
this.data2 = data2;
}
public double getData2(){
return this.data2;
}
public void setSign(int sign){
this.sign = sign;
}
public int getSign(){
return this.sign;
}

public double getResult{
swich(sign)
{
case 0:result=data1+data2;break;
case 1:result=data1-data2;break;
case 2:result=data1*data2;break;
case 3:result=data1/data2;break;
return rusult;
}

}

我没调试，不知行不行

你写的JAVA程度根本就不对呀!

-----数据运算-----

操作数 操作数

选择运算符

加法运算 减法运算 乘法运算 除法运算

这是一个动态的UseBean动作:

运算

result:
<%
int data1=Integer.parseInt(request.getParameter("data1"));
int data2=Integer.parseInt(request.getParameter("data2"));
int sign=Integer.parseInt(request.getParameter("sign"));
double result=0.0;
swich(sign)
{
case 0: result=data1+data2;break;
case 1: result=data1-data2;break;
case 2: result=data1*data2;break;
case 3: result=data1/data2;break;
}
out.println(result);
%>