个人PSP（四则运算）
个人PSP（四则运算）
1、题目要求：能自动生成小学四则运算题目，且每一道题目的运算结果不能为负。除了支持整数运算外，还要支持真分数四则运算。
2、工具清单：
- Java
3、PSP表格
| 预计耗时（分钟） | 实际耗时（分钟） | ||
| Planning | 计划 | 20 | 20 |
| Estimate | 估计这个任务需要多少时间 | 5 | 5 |
| Development | 开发 | 80 | 90 |
| Analysis | 需求分析 | 10 | 10 |
| Design Spec | 生成设计文档 | / | / |
| Design Review | 设计复审（和同事审核设计文档） | / | / |
| Coding Standerd | 代码规范（为目前的开发制定合适的规范） | / | / |
| Design | 具体设计 | 30 | 30 |
| Coding | 具体编码 | 100 | 100 |
| Code Review | 代码复审 | 10 | 15 |
| Text | 测试（自测，修改代码，提交修改） | 20 | 20 |
| Reporting | 报告 | 20 | 20 |
| Text Report | 测试报告 | 10 | 10 |
| Size Measurement | 计算工作量 | 5 | 5 |
| Postmortem & Process Improvement Plan | 事后总结，并提出过程改进计划 | 5 | 5 |
| Sum | 合计 | 305 | 330 |
4、主要代码说明
- 生成题目
package 四则运算;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import javax.swing.*;
public class practice extends JFrame{
private ArrayList<String> user_zongti = new ArrayList<String>();
private ArrayList<String> user_zonganswer = new ArrayList<String>();
private ArrayList<String> user_answer = new ArrayList<String>();
private ArrayList<String> true_answer = new ArrayList<String>();
private ArrayList<String> jta_timu = new ArrayList<String>();
private ArrayList<String> jta_zong = new ArrayList<String>();
private ArrayList<Integer> user_fenshu = new ArrayList<Integer>();
JMenuBar jmb; //菜单条组件
JMenu menu1, menu2, menu3, menu4, menu5;//菜单
JMenuItem item1, item2, item3, item4, item5, item6;//菜单项
JMenu build; //二级菜单
JMenuItem file, project;
TextArea answer_all = new TextArea();
TextField jta = new TextField();
TextField jta_answer = new TextField();
JLabel num_answer = new JLabel();
JLabel answer1;
JToolBar jtb;//工具条
JButton jb1, jb2, jb3, jb4, jb5, jb6, jb7,jb_next;
int answer_count;
int answer_fenshu;
public practice()
{
//创建菜单
jmb = new JMenuBar();
menu1 = new JMenu("文件(F)");
menu1.setMnemonic('f'); //助记符
menu2 = new JMenu("编辑");
menu2.setMnemonic('E');
menu3 = new JMenu("格式");
menu4 = new JMenu("查看");
menu5 = new JMenu("帮助");
build = new JMenu("新建");
file = new JMenuItem("文件");
project = new JMenuItem("答题");
item1 = new JMenuItem("打开");
item2 = new JMenuItem("保存(S)");
item3 = new JMenuItem("另存为");
item4 = new JMenuItem("退出");
answer1 = new JLabel("第 1 题");
//添加菜单项至菜单上
build.add(file);
build.add(project);
menu1.add(build);
menu1.add(item1);
menu1.add(item2);
menu1.add(item3);
menu1.addSeparator();
menu1.add(item4);
//将菜单加入至菜单栏
jmb.add(menu1);
jmb.add(menu2);
jmb.add(menu3);
jmb.add(menu4);
jmb.add(menu5);
JPanel contentPanel = new JPanel();
contentPanel.setLayout(null);
JLabel daan = new JLabel("答案");
JLabel dengyu = new JLabel("=");
num_answer=answer1;
num_answer.setFont(new Font("宋体",Font.BOLD, 22));
jb_next = new JButton("下一题");
jta.setFont(new Font("宋体",Font.BOLD, 22));
jta_answer.setFont(new Font("宋体",Font.BOLD, 22));
jb_next.setFont(new Font("宋体",Font.BOLD, 22));
daan.setFont(new Font("宋体",Font.BOLD, 22));
dengyu.setFont(new Font("宋体",Font.BOLD, 22));
contentPanel.add(num_answer);
contentPanel.add(daan);
contentPanel.add(dengyu);
contentPanel.add(jta);
contentPanel.add(jta_answer);
contentPanel.add(answer_all);
contentPanel.add(jb_next);
num_answer.setBounds(90, 20, 130, 50);
daan.setBounds(250, 20, 90, 50);
jta.setBounds(50, 70, 150, 30);
dengyu.setBounds(205, 70, 20, 20);
jta_answer.setBounds(230, 70, 100, 30);
jb_next.setBounds(350, 70, 110, 30);
answer_all.setBounds(50, 120, 400, 300);
this.setJMenuBar(jmb); //添加菜单栏，不能设定位置，会自动放在最上部
this.add(contentPanel);
this.setTitle("小学生四则运算答题系统");
this.setSize(600, 500);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
item1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
JFileChooser jfc=new JFileChooser();
jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
jfc.showDialog(new JLabel(), "选择");
File file=jfc.getSelectedFile();
if(file.isDirectory()){
// System.out.println("文件夹:"+file.getAbsolutePath());
}else if(file.isFile()){
String s=file.getAbsolutePath();
}
}
});
item2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
FileOutputStream outSTr = null;
BufferedOutputStream Buff = null;
boolean flag = true;
File file;
//String test ;
do{
//test = "test"+count;
String inputValue = JOptionPane.showInputDialog("Please input file name");
file = new File(inputValue+".txt");
if (!file.exists()) {
// 创建文件
try {
flag=file.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
flag=false;
}
else{
JOptionPane.showMessageDialog(null, "该文件名已存在，请重新输入", "ERROR", JOptionPane.ERROR_MESSAGE);
flag=true;
}
}while(flag);
//写入文件
String u_answer;
try {
outSTr = new FileOutputStream(file);
Buff = new BufferedOutputStream(outSTr);
System.out.println("选择是后执行的代码"+user_zongti.size()+user_answer.size());
for (int i = 0; i < user_zongti.size(); i++)
{
try {
Buff.write(user_zongti.get(i).getBytes());
Buff.write(" ".getBytes());
u_answer = user_answer.get(i);
if(u_answer.equals(""))
u_answer ="没有作答";
Buff.write(u_answer.getBytes());
Buff.write("\r\n".getBytes());
} catch (IOException e) {
e.printStackTrace();
i--;
}
}
Buff.flush();
Buff.close();
} catch (IOException e) {
e.printStackTrace();
}
//Buff.close();
try {
outSTr.close();
} catch (IOException e) {
e.printStackTrace();
}
user_zongti.clear();
user_answer.clear();
}
});
project.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
suijishengcheng art = new suijishengcheng();
true_answer=art.list_answer;
jta_timu = art.list_timu;
jta_zong = art.list;
answer_count=1;
answer_all.setText("");
for (int i = 0; i < art.list_timu.size(); i++)
{
user_zongti.add(jta_zong.get(i));
answer_all.append(jta_timu.get(i));
answer_all.append("\r\n");
}
num_answer.setText("第 "+answer_count+" 题");
jta.setText(jta_timu.get(answer_count-1));
answer_count++;
}
});
jb_next.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
String temp;
temp = jta_answer.getText();
if(jta.getText().equals(""))
{
JOptionPane.showMessageDialog(null, "错误,请导入题库", "错误", JOptionPane.ERROR_MESSAGE);
return;
}
jta_answer.setText("");
if(answer_count<=10)
{
if(isInteger(temp))
{
user_answer.add(temp);
System.out.println("选择否后执行的代码"+temp+"user_size"+user_answer.size());
num_answer.setText("第 "+answer_count+" 题");
jta.setText(jta_timu.get(answer_count-1));
answer_count++;
}
else{
JOptionPane.showMessageDialog(null, "错误", "请输入数字", JOptionPane.ERROR_MESSAGE);
}
}
else{
user_answer.add(temp);
System.out.println("选择否后执行的代码"+temp+"user_size"+user_answer.size());
answer_fenshu=0;
for(int i=0;i<user_answer.size();i++)
{
if(user_answer.get(i).equals(true_answer.get(i)))
answer_fenshu+=10;
}
user_fenshu.add(answer_fenshu);
Object[] options = { "是", "取消" };
int res=JOptionPane.showOptionDialog(null, "点击以继续 查看成绩", "答题完毕",
JOptionPane.DEFAULT_OPTION, JOptionPane.YES_NO_OPTION,
null, options, options[0]);
if(res==JOptionPane.YES_OPTION){
answer op =new answer(user_fenshu,true_answer);
}else{
Object[] option = { "是", "取消" };
int res1=JOptionPane.showOptionDialog(null, "继续新一轮答题", "新一轮答题",
JOptionPane.DEFAULT_OPTION, JOptionPane.YES_NO_OPTION,
null, option, option[0]);
if(res1==JOptionPane.YES_OPTION){
suijishengcheng art = new suijishengcheng();
true_answer=art.list_answer;
jta_timu = art.list;
answer_count=1;
answer_all.setText("");
jta_answer.setText("");
for (int i = 0; i < art.list_timu.size(); i++)
{
user_zongti.add(jta_timu.get(i));
answer_all.append(jta_timu.get(i));
answer_all.append("\r\n");
}
num_answer.setText("第 "+answer_count+" 题");
jta.setText(jta_timu.get(answer_count-1));
answer_count++;
}else{
}
}
}
}
});
item4.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
closeFrame();
}
});
}
public static boolean isInteger(String str) {
for (int i = str.length();--i>=0;){
if (!Character.isDigit(str.charAt(i))){
return false;
}
}
return true;
}
private void closeFrame()
{
System.out.println("调用窗体关闭功能");
int result = JOptionPane.showConfirmDialog(null,"是否要退出？","退出确认", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
if(result == JOptionPane.YES_OPTION)
this.dispackage 四则运算;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import javax.swing.*;
public class practice extends JFrame{
private ArrayList<String> user_zongti = new ArrayList<String>();
private ArrayList<String> user_zonganswer = new ArrayList<String>();
private ArrayList<String> user_answer = new ArrayList<String>();
private ArrayList<String> true_answer = new ArrayList<String>();
private ArrayList<String> jta_timu = new ArrayList<String>();
private ArrayList<String> jta_zong = new ArrayList<String>();
private ArrayList<Integer> user_fenshu = new ArrayList<Integer>();
JMenuBar jmb; //菜单条组件
JMenu menu1, menu2, menu3, menu4, menu5;//菜单
JMenuItem item1, item2, item3, item4, item5, item6;//菜单项
JMenu build; //二级菜单
JMenuItem file, project;
TextArea answer_all = new TextArea();
TextField jta = new TextField();
TextField jta_answer = new TextField();
JLabel num_answer = new JLabel();
JLabel answer1;
JToolBar jtb;//工具条
JButton jb1, jb2, jb3, jb4, jb5, jb6, jb7,jb_next;
int answer_count;
int answer_fenshu;
public practice()
{
//创建菜单
jmb = new JMenuBar();
menu1 = new JMenu("文件(F)");
menu1.setMnemonic('f'); //助记符
menu2 = new JMenu("编辑");
menu2.setMnemonic('E');
menu3 = new JMenu("格式");
menu4 = new JMenu("查看");
menu5 = new JMenu("帮助");
build = new JMenu("新建");
file = new JMenuItem("文件");
project = new JMenuItem("答题");
item1 = new JMenuItem("打开");
item2 = new JMenuItem("保存(S)");
item3 = new JMenuItem("另存为");
item4 = new JMenuItem("退出");
answer1 = new JLabel("第 1 题");
//添加菜单项至菜单上
build.add(file);
build.add(project);
menu1.add(build);
menu1.add(item1);
menu1.add(item2);
menu1.add(item3);
menu1.addSeparator();
menu1.add(item4);
//将菜单加入至菜单栏
jmb.add(menu1);
jmb.add(menu2);
jmb.add(menu3);
jmb.add(menu4);
jmb.add(menu5);
JPanel contentPanel = new JPanel();
contentPanel.setLayout(null);
JLabel daan = new JLabel("答案");
JLabel dengyu = new JLabel("=");
num_answer=answer1;
num_answer.setFont(new Font("宋体",Font.BOLD, 22));
jb_next = new JButton("下一题");
jta.setFont(new Font("宋体",Font.BOLD, 22));
jta_answer.setFont(new Font("宋体",Font.BOLD, 22));
jb_next.setFont(new Font("宋体",Font.BOLD, 22));
daan.setFont(new Font("宋体",Font.BOLD, 22));
dengyu.setFont(new Font("宋体",Font.BOLD, 22));
contentPanel.add(num_answer);
contentPanel.add(daan);
contentPanel.add(dengyu);
contentPanel.add(jta);
contentPanel.add(jta_answer);
contentPanel.add(answer_all);
contentPanel.add(jb_next);
num_answer.setBounds(90, 20, 130, 50);
daan.setBounds(250, 20, 90, 50);
jta.setBounds(50, 70, 150, 30);
dengyu.setBounds(205, 70, 20, 20);
jta_answer.setBounds(230, 70, 100, 30);
jb_next.setBounds(350, 70, 110, 30);
answer_all.setBounds(50, 120, 400, 300);
this.setJMenuBar(jmb); //添加菜单栏，不能设定位置，会自动放在最上部
this.add(contentPanel);
this.setTitle("小学生四则运算答题系统");
this.setSize(600, 500);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
item1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
JFileChooser jfc=new JFileChooser();
jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES );
jfc.showDialog(new JLabel(), "选择");
File file=jfc.getSelectedFile();
if(file.isDirectory()){
// System.out.println("文件夹:"+file.getAbsolutePath());
}else if(file.isFile()){
String s=file.getAbsolutePath();
}
}
});
item2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
FileOutputStream outSTr = null;
BufferedOutputStream Buff = null;
boolean flag = true;
File file;
//String test ;
do{
//test = "test"+count;
String inputValue = JOptionPane.showInputDialog("Please input file name");
file = new File(inputValue+".txt");
if (!file.exists()) {
// 创建文件
try {
flag=file.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
flag=false;
}
else{
JOptionPane.showMessageDialog(null, "该文件名已存在，请重新输入", "ERROR", JOptionPane.ERROR_MESSAGE);
flag=true;
}
}while(flag);
//写入文件
String u_answer;
try {
outSTr = new FileOutputStream(file);
Buff = new BufferedOutputStream(outSTr);
System.out.println("选择是后执行的代码"+user_zongti.size()+user_answer.size());
for (int i = 0; i < user_zongti.size(); i++)
{
try {
Buff.write(user_zongti.get(i).getBytes());
Buff.write(" ".getBytes());
u_answer = user_answer.get(i);
if(u_answer.equals(""))
u_answer ="没有作答";
Buff.write(u_answer.getBytes());
Buff.write("\r\n".getBytes());
} catch (IOException e) {
e.printStackTrace();
i--;
}
}
Buff.flush();
Buff.close();
} catch (IOException e) {
e.printStackTrace();
}
//Buff.close();
try {
outSTr.close();
} catch (IOException e) {
e.printStackTrace();
}
user_zongti.clear();
user_answer.clear();
}
});
project.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
suijishengcheng art = new suijishengcheng();
true_answer=art.list_answer;
jta_timu = art.list_timu;
jta_zong = art.list;
answer_count=1;
answer_all.setText("");
for (int i = 0; i < art.list_timu.size(); i++)
{
user_zongti.add(jta_zong.get(i));
answer_all.append(jta_timu.get(i));
answer_all.append("\r\n");
}
num_answer.setText("第 "+answer_count+" 题");
jta.setText(jta_timu.get(answer_count-1));
answer_count++;
}
});
jb_next.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
String temp;
temp = jta_answer.getText();
if(jta.getText().equals(""))
{
JOptionPane.showMessageDialog(null, "错误,请导入题库", "错误", JOptionPane.ERROR_MESSAGE);
return;
}
jta_answer.setText("");
if(answer_count<=10)
{
if(isInteger(temp))
{
user_answer.add(temp);
System.out.println("选择否后执行的代码"+temp+"user_size"+user_answer.size());
num_answer.setText("第 "+answer_count+" 题");
jta.setText(jta_timu.get(answer_count-1));
answer_count++;
}
else{
JOptionPane.showMessageDialog(null, "错误", "请输入数字", JOptionPane.ERROR_MESSAGE);
}
}
else{
user_answer.add(temp);
System.out.println("选择否后执行的代码"+temp+"user_size"+user_answer.size());
answer_fenshu=0;
for(int i=0;i<user_answer.size();i++)
{
if(user_answer.get(i).equals(true_answer.get(i)))
answer_fenshu+=10;
}
user_fenshu.add(answer_fenshu);
Object[] options = { "是", "取消" };
int res=JOptionPane.showOptionDialog(null, "点击以继续 查看成绩", "答题完毕",
JOptionPane.DEFAULT_OPTION, JOptionPane.YES_NO_OPTION,
null, options, options[0]);
if(res==JOptionPane.YES_OPTION){
answer op =new answer(user_fenshu,true_answer);
}else{
Object[] option = { "是", "取消" };
int res1=JOptionPane.showOptionDialog(null, "继续新一轮答题", "新一轮答题",
JOptionPane.DEFAULT_OPTION, JOptionPane.YES_NO_OPTION,
null, option, option[0]);
if(res1==JOptionPane.YES_OPTION){
suijishengcheng art = new suijishengcheng();
true_answer=art.list_answer;
jta_timu = art.list;
answer_count=1;
answer_all.setText("");
jta_answer.setText("");
for (int i = 0; i < art.list_timu.size(); i++)
{
user_zongti.add(jta_timu.get(i));
answer_all.append(jta_timu.get(i));
answer_all.append("\r\n");
}
num_answer.setText("第 "+answer_count+" 题");
jta.setText(jta_timu.get(answer_count-1));
answer_count++;
}else{
}
}
}
}
});
item4.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
closeFrame();
}
});
}
public static boolean isInteger(String str) {
for (int i = str.length();--i>=0;){
if (!Character.isDigit(str.charAt(i))){
return false;
}
}
return true;
}
private void closeFrame()
{
System.out.println("调用窗体关闭功能");
int result = JOptionPane.showConfirmDialog(null,"是否要退出？","退出确认", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
if(result == JOptionPane.YES_OPTION)
this.dispose();
}
}
pose();
}
}
- 生成答案
package 四则运算;
import java.util.ArrayList;
import javax.swing.*;
public class answer extends JFrame {
//输出分数
public answer(ArrayList<Integer> scores,ArrayList<String> answers) {
super();
this.setLayout(null);
int score=0;
int j;
JLabel jlb[]=new JLabel[10];
for(int i=0;i<answers.size();i++) {
jlb[i]= new JLabel();
j=i+1;
jlb[i].setText("第"+j+"题答案:"+answers.get(i));
jlb[i].setBounds(100,50+i*25,100,20);
this.add(jlb[i]);
}
for(int i=0;i<scores.size();i++) {
score=+scores.get(i);
}
JLabel lb=new JLabel();
lb.setText("你的分数为:"+score);
this.setSize(300,400);
this.add(lb);
lb.setBounds(100,300,150,20);
this.setVisible(true);
}
}
生成答案
- 主函数
package 四则运算;
public class main {
public static void main(String[] args) {
main lg = new main();
//new MyExGUI();
}
}
主函数
- 运行结果
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