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结对编程1——四则运算-GUI
码市链接:https://coding.net/u/hmhhh/p/hmh-homework/git/tree/master/
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
|
小结:
1、两人结对编程对于作业的纠错和细节处理是有明显帮助的。首先我们一起讨论了总体的需求以及该如何设计实现,然后一致决定采用黄建英同学的基础代码进行改进,实现四则运算的GUI界面。因为是基于她上次的代码,所以由黄建英同学负责代码的编写,而我则是负责提醒和审查。
2、虽然两个人的合作会使作业的时间变长,但是可以找出更多的不足之处,毕竟当局者迷。所以这一次通过合作,我们各自都有进步,也觉得这次的作业应该是比较精致的。
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,我负责提醒和审查。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: 搭档的默契合作是一个好作品的完美助力。
结对编程1——四则运算-GUI