软件工程作业02

一代码：suanshi.java：

package p1;

public class Suanshi {

final int MAX=1000;

double[] e= new double[MAX];

String[] f=new String[MAX];

private int num;

public int getNum() {

return num;

}

public void setNum(int num) {

this.num = num;

}

public Suanshi(){}

public Suanshi(int n)

{

creatSuanshi(n);

this.num=n;

}

public void creatSuanshi(int n)

{

int a;

int c;

int d;

int h;

for(int i=0;i<n;i++)

{

a=(int)(Math.random()*100+1);

d=(int)(Math.random()*8+1);

c=(int)(Math.random()*100+1);

h=(int)(Math.random()*100+1);

switch(d){

case 1:

if(a+c>100)

{

i--;

break;

}

e[i]=a+c;

f[i]=""+a+"+"+c;

break;

case 2:

if(a-c<0)

{

i--;

break;

}

e[i]=a-c;

f[i]=""+a+"-"+c;

break;

case 3:

while(a*c>100)

{

a=(int)(Math.random()*10);

c=(int)(Math.random()*10);

}

e[i]=a*c;

f[i]=""+a+"*"+c;

break;

case 4:

e[i]= (int)(Math.random()*10+1);

c= (int)(Math.random()*10+1);

a=(int)(c*e[i]);

f[i]=""+a+"/"+c;

if((c==0)&&(a>100))

{

i--;

break;

}

case 5:

if(a+c+h>100)

{

i--;

break;

}

e[i]=a+c+h;

f[i]=""+a+"+"+c+"+"+h;

break;

case 6:

if(a+c-h>100||a+c-h<0)

{

i--;

break;

}

e[i]=a+c-h;

f[i]=""+a+"+"+c+"-"+h;

break;

case 7:

if(a-c+h>100||a-c+h<0)

{

i--;

break;

}

e[i]=a-c+h;

f[i]=""+a+"-"+c+"+"+h;

break;

case 8:

if(a-c-h>100||a-c-h<0)

{

i--;

break;

}

e[i]=a-c-h;

f[i]=""+a+"-"+c+"-"+h;

break;

}

public String getSuanshi(int i)

{

return f[i];

}

public double getDaan(int i)

{

return e[i];

}

add.jsp：

<%@page import="p1.Suanshi"%>

<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

var cTime=100;

function TimeClose()

{

window.setTimeout('TimeClose()',1000);

if(cTime<=0)

CloseWindow_Click();

this.ShowTime.innerHTML="倒计时"+cTime+"秒后结束答题";

cTime--;

}

function CloseWindow_Click()

{

window.close();

}

</script>

//获取客户端传递过来的参数

if("".equals(request.getParameter("number").trim()))

{

request.setAttribute("loginError","不能为空");

<jsp:forward page="index.jsp"></jsp:forward>

}

else

{

if(Integer.parseInt(request.getParameter("number").trim())==0)

{

request.setAttribute("loginError","不能为0");

<jsp:forward page="index.jsp"></jsp:forward>

}

int number=Integer.parseInt(request.getParameter("number").trim());

Suanshi suanshi=new Suanshi(number);

session.setAttribute("suanshi", suanshi);

<div align="right" id="ShowTime">倒计时100秒后结束答题</div>

<hr>

<tr>

</tr>

for(int i=0;i<number;i++)

{

<tr>

</tr>

}

</table><br>

</form>

</body>

</html>

Index.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>输入数量页面</title>

</head>

String loginError = (String)request.getAttribute("loginError");

if(loginError == null)

{

loginError = "";

}

数量：<input type="text" name="number"/><%=loginError %><br><br>

时间一共为<font color="red">100</font>秒<br><br>

</form>

</body>

</html>

Judge.jsp：

<%@page import="p1.Suanshi"%>

<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<title>Insert title here</title>

</head>

Suanshi suanshi = (Suanshi)session.getAttribute("suanshi") ;

int dui=0;

int cuo=0;

int meizuo=0;

int[] flag=new int[suanshi.getNum()];

String daan[]=new String[suanshi.getNum()];

double daan1[]=new double[suanshi.getNum()];

for(int i=0;i<suanshi.getNum();i++)

{

daan[i]=request.getParameter("daan"+i).trim();

if((daan[i]==null)||("".equals(daan[i].trim())))

{

flag[i]=0;

meizuo++;

}

else

{

daan1[i] =Double.parseDouble(daan[i]);

if(Math.abs(daan1[i]-suanshi.getDaan(i))<0.01)

{

flag[i]=1;

dui++;

}

else

{

flag[i]=0;

cuo++;

}

<body>

一共：<%=suanshi.getNum()%>道<br>

没做的：<%=meizuo %>道<br>

做错的：<%=cuo %>道<br>

作对的：<%=dui %>道<br></center>

<tr>

</tr>

for(int i=0;i<suanshi.getNum();i++)

if(flag[i]==0)

{

<tr>

</tr>

}

</table>

</body>

</html>

NewFile。Jsp：

<%@ page language="java" contentType="text/html; charset=UTF-8"

pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<title>倒计时关闭网页</title>

<head>

var cTime=100;

function TimeClose()

{

window.setTimeout('TimeClose()',1000);

if(cTime<=0)

CloseWindow_Click();

this.ShowTime.innerHTML="倒计时"+cTime+"秒后关闭当前窗口";

cTime--;

}

function CloseWindow_Click()

{

window.close();

}

</script>

</head>

<div id="ShowTime">倒计时100秒后关闭当前窗口</div>

</body>

</html>

二结果截图

PSP2.1	Personal Software Process Stages
Planning	计划
· Estimate	· 估计这个任务需要多少时间 20小时
Development	开发
· Analysis	· 需求分析 (包括学习新技术) 5小时
· Design Spec	· 生成设计文档 1小时
· Design Review	· 设计复审 (和同事审核设计文档) 10分钟
· Coding Standard	· 代码规范 (为目前的开发制定合适的规范) 无
· Design	· 具体设计无
· Coding	· 具体编码 10小时
· Code Review	· 代码复审 1小时
· Test	· 测试（自我测试，修改代码，提交修改） 1小时
Reporting	报告 1小时
· Test Report	· 测试报告无
· Size Measurement	· 计算工作量无
· Postmortem & Process Improvement Plan	· 事后总结, 并提出过程改进计划 1小时
	合计20小时10分钟