小学生口算题卡---计应191（西）第三组马允
1， 计划
为一年级小学生设计口算题卡
2， 需求分析
2.1，用户故事
作为一个一年级小学生的家长，我希望制作一个出题软件，完成100以内的正整数的加减法题随机产生，一边减轻我的负担
2.2 技术难点
随机产生100以内的正整数
随机产生加减符号
减法负值的剔除
任务一
随机产生一组（10个）算题----产生算式剔除不够减，随机产生
任务二
显示一组算题，选择解答界面，完成按钮，同步计时（秒）
任务三
显示对错，统计正确率，统计时间
2，生成设计文档
3，设计复审
室友帮忙查看
4，代码规范
类名和方法名的定义要让其他人能看懂是什么意思，不要用a或b定义
5，具体设计
6，具体编码
package
package hnzj;
/**
* 减法运算
*/
public class Reduce extends Operation{
static String symbol="-";
public Reduce() {
super(symbol);
}
@Override
//判断第一个随机数是否大于第二个数
public void isRight() {
if(num1<num2) {
int temp=num1;
num1=num2;
num2=temp;
}
}
@Override
public void problemAnswers() {
rightAnswers=num1-num2;
}
}
package hnzj;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
/**
* 图形用户界面
*/
public class TheForm {
int[] userAnswer = new int[10];//用户答案数组
int scores;//成绩
int usedTime;//用户时间
boolean isrun = false;
Operation[] questions = new Operation[10];
JFrame f = new JFrame("口算题卡");
JPanel pshan = new JPanel();//面板上面部分
JPanel pzhong = new JPanel();//面板中间部分
JPanel pxia = new JPanel();//面板下面部分
JButton bDoOover = new JButton("重做");//重做按钮
JButton bStart = new JButton("开始做题");//开始做题按钮
JLabel lAnswer = new JLabel("请输入答案");//输入答案提示标签
JLabel jwelcome = new JLabel("欢迎来到自动出题系统");
//显示题目
JLabel[] lQuestions= new JLabel[10];
//显示正确答案
JLabel[] lAnswers = new JLabel[10];
//显示用户答案是对是错
JLabel[] lRightOrWrong = new JLabel[10];
//获取用户答案的文本框
JTextField[] tUsersAnswer = new JTextField[10];
JLabel lScores = new JLabel("你的成绩为:");
//设置时间的面板
JPanel pTime = new JPanel();
JLabel lRemainTime = new JLabel("剩余时间：");
JTextField tTime = new JTextField("300");
JLabel lTimeConsuming = new JLabel("用时：");
//构造面板
public TheForm() {
//设置主面板
f.setSize(900,700);//设置窗体大小
//点击右上角x时关闭运行的程序
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setLocationRelativeTo(null);//窗口显示在屏幕中间
f.setVisible(true);//设置窗口为可见
//设置面板上面部分
pshan.setSize(800,100);//设置面板大小
jwelcome.setFont(new Font("微软雅黑", Font.BOLD, 30));
pshan.add(jwelcome);
f.add(pshan,BorderLayout.NORTH);//边界布局
//设置中间面板部分
pzhong.setSize(800,500);
//网格布局
GridBagLayout gbl = new GridBagLayout();
GridBagConstraints gbc = new GridBagConstraints();
gbc.weightx = 2;
gbc.weighty = 2;
gbc.gridx=1;//组件的左边缘与网格左部之间的距离
gbc.gridy=0;//组件的上边缘与网格顶部之间的距离
gbc.anchor = GridBagConstraints.WEST;
gbl.setConstraints(lAnswer, gbc);//设置此布局中指定组件的约束条件
lAnswer.setFont(new Font("微软雅黑", Font.BOLD, 22));
pzhong.add(lAnswer);
//设置成绩的位置
gbc.gridx = 4;
gbc.gridwidth = 2;
gbc.anchor = GridBagConstraints.CENTER;
gbl.setConstraints(lScores, gbc);
lScores.setFont(new Font("微软雅黑", Font.BOLD, 22));
pzhong.add(lScores);
//设置打印的题目和答案
for(int i = 0;i < 5;i++){
lQuestions[i] = new JLabel("点击开始做题显示题目");
lQuestions[i].setFont(new Font("微软雅黑", Font.BOLD, 20));
tUsersAnswer[i] = new JTextField(5);
tUsersAnswer[i].setFont(new Font("微软雅黑", Font.BOLD, 20));
lAnswers[i] = new JLabel("");
lAnswers[i].setFont(new Font("微软雅黑", Font.BOLD, 20));
lRightOrWrong[i] = new JLabel("");
lRightOrWrong[i].setFont(new Font("微软雅黑", Font.BOLD, 20));
gbc.gridwidth = 1;
gbc.gridx = 0;
gbc.gridy = 2*i+1;
gbc.anchor = GridBagConstraints.EAST;
gbl.setConstraints(lQuestions[i], gbc);
pzhong.add(lQuestions[i]);
gbc.anchor = GridBagConstraints.CENTER;
gbc.gridy = 2*i+2;
gbc.gridwidth = 2;
gbl.setConstraints(lAnswers[i], gbc);
pzhong.add(lAnswers[i]);
gbc.gridwidth = 1;
gbc.gridx = 1;
gbc.gridy = 2*i+1;
gbc.anchor = GridBagConstraints.WEST;
gbl.setConstraints(tUsersAnswer[i],gbc);
pzhong.add(tUsersAnswer[i]);
gbc.gridx = 2;
gbc.gridy = 2*i+2;
gbl.setConstraints(lRightOrWrong[i], gbc);
pzhong.add(lRightOrWrong[i]);
}
for(int i = 5;i < 10;i++){
lQuestions[i] = new JLabel("点击开始做题显示题目");
lQuestions[i].setFont(new Font("微软雅黑", Font.BOLD, 20));
tUsersAnswer[i] = new JTextField(5);
tUsersAnswer[i].setFont(new Font("微软雅黑", Font.BOLD, 20));
lAnswers[i] = new JLabel("");
lAnswers[i].setFont(new Font("微软雅黑", Font.BOLD, 20));
lRightOrWrong[i] = new JLabel("");
lRightOrWrong[i].setFont(new Font("微软雅黑", Font.BOLD, 20));
gbc.gridx = 4;
gbc.gridy = 2*i-9;
gbc.anchor = GridBagConstraints.EAST;
gbl.setConstraints(lQuestions[i], gbc);
pzhong.add(lQuestions[i]);
gbc.anchor = GridBagConstraints.CENTER;
gbc.gridy = 2*i-8;
gbc.gridwidth = 2;
gbl.setConstraints(lAnswers[i], gbc);
pzhong.add(lAnswers[i]);
gbc.gridwidth = 1;
gbc.gridx = 5;
gbc.gridy = 2*i-9;
gbc.anchor = GridBagConstraints.WEST;
gbl.setConstraints(tUsersAnswer[i],gbc);
pzhong.add(tUsersAnswer[i]);
gbc.gridx = 6;
gbc.gridy = 2*i-8;
gbl.setConstraints(lRightOrWrong[i], gbc);
pzhong.add(lRightOrWrong[i]);
}
pzhong.setLayout(gbl);
//把pzhong面板添加到界面中间
f.add(pzhong,BorderLayout.CENTER);
//下面面板设置
pxia.setLayout(new FlowLayout(FlowLayout.CENTER,60,20));
lRemainTime.setFont(new Font("微软雅黑", Font.BOLD, 20));
lTimeConsuming.setFont(new Font("微软雅黑", Font.BOLD, 20));
tTime.setFont(new Font("微软雅黑", Font.BOLD, 20));
pTime.setLayout(new FlowLayout(FlowLayout.LEFT,10,20));
pTime.add(lRemainTime);
pTime.add(tTime);
pTime.add(lTimeConsuming);
pxia.add(pTime);
//开始做题
bStart.setFont(new Font("微软雅黑", Font.BOLD, 20));
pxia.add(bStart);
//重做
bDoOover.setFont(new Font("微软雅黑", Font.BOLD, 20));
pxia.add(bDoOover);
f.add(pxia,BorderLayout.SOUTH);
//使用匿名嵌套类的方式注册开始按钮的事件处理监听器对象
bStart.addActionListener(
new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if(bStart.getText().equals("开始做题")){
start(); //如果按钮上面的文字是"开始做题"，则调用start()方法出题
bStart.setText("提交答案");
//倒计时线程开始
LimitTime t = new LimitTime();
t.start();
}else{
for(int i = 0;i < 10;i++){
if(tUsersAnswer[i].getText().equals("")){
tUsersAnswer[i].setText("-1");
}
}
isrun = false;//将runFlag设置为false（线程就会不再执行while循环里的内容）
lTimeConsuming.setText("用时："+usedTime);
bStart.setText("开始做题");
}
}
}
);
//监听重做按钮
bDoOover.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
//若已提交答案 则可以进行重做
if(bStart.getText().equals("开始做题")){
for(int i = 0;i < 10;i++){
tUsersAnswer[i].setText("");
lAnswers[i].setText("");
lRightOrWrong[i].setText("");
lScores.setText("");
}
lTimeConsuming.setText("用时：");
LimitTime t = new LimitTime();
t.start();
bStart.setText("提交答案");
}else{
//答案未提交 不能重做
JFrame notSubmit = new JFrame();
JOptionPane.showMessageDialog(notSubmit,"您需要提交答案之后才能重做");
}
}
});
}
//显示成绩
public void printAnswer(){
//成绩初始值为100
scores = 100;
//对于每道题
for(int i = 0; i < 10;i++){
//给用户的答案这一数组赋值
userAnswer[i] = Integer.valueOf(tUsersAnswer[i].getText());
questions[i].setUserAnswers(userAnswer[i]);
//使正确答案显示在面板上
lAnswers[i].setText(questions[i].printrightAnswers());
//在面板上显示答案是否正确
lRightOrWrong[i].setText(questions[i].userRightOrWrong());
//如果错误则将答案和是否正确两个标签的字体颜色设置为红色
if(lRightOrWrong[i].getText().equals("回答错误")){
lAnswers[i].setForeground(Color.RED);
lRightOrWrong[i].setForeground(Color.RED);
scores-=10;
}else{
//如果正确显示为蓝色
lAnswers[i].setForeground(Color.BLUE);
lRightOrWrong[i].setForeground(Color.BLUE);
}
}
//显示成绩
lScores.setText("你的成绩为："+ scores);
}
//倒计时线程
class LimitTime extends Thread{
public void run(){
isrun = true;
int i = 300;//剩余秒数
usedTime = 0;//用户计时
while(isrun && i >= 0) {
//把整型转变为字符串类型
tTime.setText(Integer.toString(i));
try {
sleep(1000);
usedTime++;
} catch (InterruptedException e) {
JFrame jf = new JFrame();
JOptionPane.showMessageDialog(jf,"出现了未知问题，请重启程序");
}
i--;
}
//如果倒计时用户都没有输入答案则自动赋值为-1
for(int j = 0;j < 10;j++)
{
if(tUsersAnswer[j].getText().equals(""))
{
tUsersAnswer[j].setText("-1");
}
}
printAnswer();//倒计时结束打印答案并输出正确答案
bStart.setText("开始做题");
lTimeConsuming.setText("用时："+usedTime);
}
}
public void start(){
//清除TextField和答案标签的内容
for(int i = 0;i < 10;i++){
tUsersAnswer[i].setText("");
lAnswers[i].setText("");
lRightOrWrong[i].setText("");
lScores.setText("");
lTimeConsuming.setText("用时：");
}
//随机产生加减法
for(int i = 0;i < 10;i++){
int tempCh = (int)(Math.random()*2+1);
switch(tempCh)
{
case 1:
questions[i] = new Add();
lQuestions[i].setText(questions[i].printProblem());
break;
case 2:
questions[i] = new Reduce();
lQuestions[i].setText(questions[i].printProblem());
break;
}
}
}
}
package hnzj;
public class TheFormTest {
public static void main(String[] args) {
TheForm tf=new TheForm();
}
}
hnzj;
/**
* 四则运算
* @author fang
*
*/
public abstract class Operation {
protected int num1;//第一个随机数
protected int num2;//第二个随机数
protected int userAnswers;//用户答案
protected int rightAnswers;//正确答案
protected String symbol;//运算符号
public Operation(String symbol) {
this.symbol=symbol;
}
//产生随机数
public void randomNum() {
num1=(int) (Math.random()*100);
num2=(int) (Math.random()*100);
}
//打印题目
public String printProblem(){
randomNum();
isRight();
return num1+symbol+num2+"=";
}
//输出正确答案
public String printrightAnswers()
{
problemAnswers();
return "答案："+num1+" "+symbol+" "+num2+" = "+rightAnswers;
}
//获取用户答案
public void setUserAnswers(int userAnswers) {
this.userAnswers = userAnswers;
}
//判断用户回答的对错
public String userRightOrWrong() {
if(userAnswers==rightAnswers) {
return "回答正确";
}else {
return "回答错误";
}
}
//判断随机数生成是否合法
public abstract void isRight();
//生成正确答案
public abstract void problemAnswers();
}
package hnzj;
/**
* 加法运算
*/
public class Add extends Operation {
static String symbol="+";
public Add() {
super(symbol);
}
@Override
public void isRight() {
}
@Override
public void problemAnswers() {
rightAnswers=num1+num2;
}
}
