201421123003 黄建英 201421123004 黄美海
题目描述:
我们在个人作业1中,用各种语言实现了一个命令行的四则运算小程序。进一步,本次要求把这个程序做成GUI(可以是Windows PC 上的,也可以是Mac、Linux,web,手机上的),成为一个有基本功能、一定价值的程序。在下面的功能需求中实现两个:
1.记录用户的对错总数,程序退出再启动的时候,能把以前的对错数量保存并在此基础上增量计算;
2.有计时功能,能显示用户开始答题后的消耗时间;
3.界面支持中文简体/中文繁体/英语,用户可以选择一种。
在软件开发中,我们需要大量使用工具来辅助设计,每个环节大家都要善于学习和使用工具。设计的时候,请使用思维导图设计你的模块之间的关系。
一、需求分析
1、用户输入数量可随机产生四则运算式
2、对用户输入的答案进行正确率分析
3、GUI界面:a、有计时功能,能显示用户开始答题后的消耗时间 b、界面支持中文简体/中文繁体/英语,用户可以选择一种;
二、思维导图
三、关键代码说明
a计时功能
private void finishActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_finishActionPerformed
// TODO add your handling code here:
rightanswer.setText("");
int correct = 0;
int fault = 0;
String[] anslist = enter2.getText().split("\n");
for (int i = 0; i < Answer.size(); i++) {
if (Answer.get(i).equals(anslist[i])) {
correct++;
rightanswer.append( "正确!答案是:"+Answer.get(i)+"\n");
} else {
rightanswer.append( " 错误!正确答案是:"+Answer.get(i)+"\n");
fault++;
}
}
String toDate = simpleFormat.format(new Date());
try {
to = simpleFormat.parse(toDate).getTime();
} catch (ParseException ex) {
Logger.getLogger(sizeyunsuan.class.getName()).log(Level.SEVERE, null, ex);
}
System.out.println((float) ((to - from) / (1000 * 60 * 60)));
if (language == 1) {
resultprintf.setText("答对" + correct + "题,正确率:" + (float) correct / (correct + fault) * 100 + "%,花费时间:" + (int) ((to - from) / (1000)) + "秒");
} else if (language == 2) {
resultprintf.setText("答對" + correct + "題,正確率:" + (float) correct / (correct + fault) * 100 + "%,花費時間:" + (int) ((to - from) / (1000)) + "秒");
} else if (language == 3) {
resultprintf.setText("Answer correct " + correct + "questions, correct rate:" + (float) correct / (correct + fault) * 100 + "%,Spend time:" + (int) ((to - from) / (1000)) + "s");
}
for (int i = 0; i < Answer.size(); i++) {
Answer.remove(i);
anslist = null;
}
}//GEN-LAST:event_finishActionPerformed
b生成题目
private void startActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_startActionPerformed
// TODO add your handling code here:
String num = enter1.getText();
int n = 0;
try {
n = Integer.parseInt(num);
} catch (NumberFormatException e) {
if (language == 1) {
resultprintf.setText("输入错误!请重新输入");
} else if (language == 2) {
resultprintf.setText("輸入錯誤!請重新輸入");
} else if (language == 3) {
resultprintf.setText("input error! please enter again");
}
}
int m = (int) (Math.random() * n);//随机整数题目和分数题目的题量
for (int i = 0; i < (n - m); i++) {//先随机出整数题型
Random random = new Random();
int n1 = random.nextInt(10);
int n2 = random.nextInt(10) + 1;
int a = (int) (Math.random() * 4 + 1);//随机决定运算类型
if (a == 1) {
Question.add(n1 + "+" + n2 + "=");
Answer.add(n1 + n2 + "");
}
if (a == 2) {
Question.add(n1 + "-" + n2 + "=");
Answer.add(n1 - n2 + "");
}
if (a == 3) {
Question.add(n1 + "×" + n2 + "=");
Answer.add(n1 * n2 + "");
}
if (a == 4) {
Question.add(n1 + "÷" + n2 + "=");
String n3 = (float) n1 / n2 + "";
if (n3.indexOf(".0") != -1) {
n3 = n3.replace(".0", "");
}
Answer.add((n3));
}
}
for (int i = 0; i < m; i++) {
int[] fn1 = createFraction();
int[] fn2 = createFraction();
int a = (int) (Math.random() * 4 + 1);
if (a == 1) {//加
Question.add("(" + Reduction(fn1[0], fn1[1]) + ")+(" + Reduction(fn2[0], fn2[1]) + ")=");
Answer.add(Reduction(((fn1[0] * fn2[1]) + (fn2[0] * fn1[1])), (fn1[1] * fn2[1])));//化简结果并存储
}
if (a == 2) {//减
Question.add("(" + Reduction(fn1[0], fn1[1]) + ")-(" + Reduction(fn2[0], fn2[1]) + ")=");
Answer.add(Reduction(((fn1[0] * fn2[1]) - (fn2[0] * fn1[1])), (fn1[1] * fn2[1])));
}
if (a == 3) {//乘
Question.add("(" + Reduction(fn1[0], fn1[1]) + ")×(" + Reduction(fn2[0], fn2[1]) + ")=");
Answer.add(Reduction(fn1[0] * fn2[0], fn1[1] * fn2[1]));//
}
if (a == 4) {//除
Question.add("(" + Reduction(fn1[0], fn1[1]) + ")÷(" + Reduction(fn2[0], fn2[1]) + ")=");
Answer.add(Reduction(fn1[0] * fn2[1], fn1[1] * fn2[0]));
}
}
int qn = 0;
question.setText("");
rightanswer.setText("");
enter2.setText("");
for (String string : Question) {
qn++;
question.append("[" + qn + "]" + string + "\n");
}
for (int i = 0; i < Question.size(); i++) {
Question.remove(i);
}
String fromDate = simpleFormat.format(new Date());
try {
from = simpleFormat.parse(fromDate).getTime();
} catch (ParseException ex) {
Logger.getLogger(sizeyunsuan.class.getName()).log(Level.SEVERE, null, ex);
}
}//GEN-LAST:event_startActionPerformed
c结果判断与输出
private void finishActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_finishActionPerformed
// TODO add your handling code here:
rightanswer.setText("");
int correct = 0;
int fault = 0;
String[] anslist = enter2.getText().split("\n");
for (int i = 0; i < Answer.size(); i++) {
if (Answer.get(i).equals(anslist[i])) {
correct++;
rightanswer.append( "正确!答案是:"+Answer.get(i)+"\n");
} else {
rightanswer.append( " 错误!正确答案是:"+Answer.get(i)+"\n");
fault++;
}
}
String toDate = simpleFormat.format(new Date());
try {
to = simpleFormat.parse(toDate).getTime();
} catch (ParseException ex) {
Logger.getLogger(sizeyunsuan.class.getName()).log(Level.SEVERE, null, ex);
}
System.out.println((float) ((to - from) / (1000 * 60 * 60)));
if (language == 1) {
resultprintf.setText("答对" + correct + "题,正确率:" + (float) correct / (correct + fault) * 100 + "%,花费时间:" + (int) ((to - from) / (1000)) + "秒");
} else if (language == 2) {
resultprintf.setText("答對" + correct + "題,正確率:" + (float) correct / (correct + fault) * 100 + "%,花費時間:" + (int) ((to - from) / (1000)) + "秒");
} else if (language == 3) {
resultprintf.setText("Answer correct " + correct + "questions, correct rate:" + (float) correct / (correct + fault) * 100 + "%,Spend time:" + (int) ((to - from) / (1000)) + "s");
}
for (int i = 0; i < Answer.size(); i++) {
Answer.remove(i);
anslist = null;
}
}//GEN-LAST:event_finishActionPerformed
d中文简体/中文繁体/英语三种语言的切换
private void language1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_language1ActionPerformed
// TODO add your handling code here:
language = 1;
title1.setText("四则运算生成器");
title2.setText("请输入产生四则算式的数量:");
title3.setText("请选择语言");
title4.setText("问题显示:");
title5.setText("输入答案:");
title6.setText("正确答案:");
start.setText("生成");
finish.setText("结束");
}//GEN-LAST:event_language1ActionPerformed
private void language2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_language2ActionPerformed
// TODO add your handling code here: language = 2;
title1.setText("四則運算生成器");
title2.setText("請輸入產生四則算式的數量:");
title3.setText("請選擇語言");
title4.setText("問題顯示:");
title5.setText("輸入答案:");
title6.setText("正確答案:");
start.setText("生成");
finish.setText("結束");
}//GEN-LAST:event_language2ActionPerformed
private void language3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_language3ActionPerformed
// TODO add your handling code here:
language = 3;
title1.setText("Arithmetic");
title2.setText("enter number:");
title3.setText("language");
title4.setText("problem display:");
title5.setText("Enter answer:");
title6.setText("proofreader:");
start.setText("enter");
finish.setText("end");
}//GEN-LAST:event_language3ActionPerformed
e测试运行
简体中文:
繁体中文
英文
结对照片展示:
psp:
PSP2.1 | Personal Software Process Stages | Estimated time | actual time |
Planning | 计划 | 15min | 20min |
· Estimate | 估计这个任务需要多少时间 | 10h | 12h |
Development | 开发 | 4h | 3h |
· Analysis | 需求分析 (包括学习新技术) | 5min | 3min |
· Design Spec | 生成设计文档 | 10min | 10min |
· Design5 R20eview | 设计复审 | 5min | 5min |
· Coding Standard | 代码规范 | 30min | 40min |
· Design | 具体设计 | 2h | 2h |
· Coding | 具体编码 | 3h | 4h |
· Code Review | 代码复审 | 20min | 30min |
· Test | 测试(自我测试,修改代码,提交修改) | 5min | 10min |
Reporting | 报告 | 10min | 10min |
· | 测试报告。 | - | - |
· | 计算工作量 | 5min | 5min |
· | 并提出过程改进计划 | 5min | 6min |
码市链接:https://coding.net/u/hjyaaa/p/zuoye2/git/blob/master/sizeyunsuan.java
小结:
1、这次结对编程实验是我和黄美海同学一起完成,首先我们一起讨论了总体的需求以及该如何设计实现,然后一致决定采用我上次的实验为基础来实现四则运算的GUI界面,黄美海同学负责代码的复审以及提出我的不足;
2、以前自己编程事总会有小小的不起眼的小毛病,这次结对编程是两个人一起做,在队友的提醒下,做起实验来格外顺手。但是要在上次实验的基础上增加两个功能并用图形界面实现,着实有点吃力,还好查了资料,顺利解决了。
汉堡包式评价:
- 先来一片面包:我们两人达成结对编程的共识,采用JAVA和GUI实现
- 再把肉放上:这次编程过程中,我负责主体编程,但是期间遇到了诸多问题和不足,我们经过讨论、查资料就都顺利解决。
- 然后再来一片面包: 两人编程中有领航员和驾驶员关系时确实能使工作更加顺利,这次编程让我们对对方的编程实力有了更深的了解,也发现了自己一些编程习惯不是特别好。