四则运算迭代改进（一）
初步完成的java编写的四则运算！
代码：
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
public class arithmetic implements ActionListener {
JFrame f;
JLabel title,title1;
JTextField jfirst1, jfirst2, jfirst3, jfirst4, jfirst5, jfirst6, jfirst7,
jfirst8, jfirst9, jfirst10;// 10道题的分别的第一个数据
JLabel jsymbol1, jsymbol2, jsymbol3, jsymbol4, jsymbol5, jsymbol6,
jsymbol7, jsymbol8, jsymbol9, jsymbol10;// 10道题的分别的符号
JTextField jsecond1, jsecond2, jsecond3, jsecond4, jsecond5, jsecond6,
jsecond7, jsecond8, jsecond9, jsecond10;// 10道题的分别的第二个数据
JTextField janswer1, janswer2, janswer3, janswer4, janswer5, janswer6,
janswer7, janswer8, janswer9, janswer10;// 10道题分别的结果
JLabel jjudge1, jjudge2, jjudge3, jjudge4, jjudge5, jjudge6, jjudge7,
jjudge8, jjudge9, jjudge10;// 判断10道题输入答案的对错
JTextField jjresult1, jjresult2, jjresult3, jjresult4, jjresult5,
jjresult6, jjresult7, jjresult8, jjresult9, jjresult10;// 10道题分别的
// 正确答案
JButton SubmitBtn;// 提交答案按钮
JButton AddBtn, SubBtn, MulBtn, DivBtn, ExitBtn;// 加法测试，减法测试，乘法测试，除法测试，退出系统
JLabel jtotle, jright, jjright;// 总共题数，提示：“正确题数：”，正确的题数
float first1, first2, first3, first4, first5, first6, first7, first8, first9,
first10;
float second1, second2, second3, second4, second5, second6, second7, second8,
second9, second10;
int flag;
public arithmetic() {
f = new JFrame(" 小学四则运算系统");
f.setBounds(100, 100, 1150, 520);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container c = f.getContentPane();
// 添加提示：“请选择”，添加加法测试按钮、减法测试按钮、乘法测试按钮、除法测试按钮、退出测试按钮
JLabel Choose = new JLabel("请选择:");
Choose.setFont(new Font("黑体", Font.BOLD, 18));
AddBtn = new JButton("加法运算");
AddBtn.setFont(new Font("黑体", Font.BOLD, 18));
AddBtn.addActionListener(this);
SubBtn = new JButton("减法运算");
SubBtn.setFont(new Font("黑体", Font.BOLD, 18));
SubBtn.addActionListener(this);
MulBtn = new JButton("乘法运算");
MulBtn.setFont(new Font("黑体", Font.BOLD, 18));
MulBtn.addActionListener(this);
DivBtn = new JButton("除法运算");
DivBtn.setFont(new Font("黑体", Font.BOLD, 18));
DivBtn.addActionListener(this);
ExitBtn = new JButton("退出系统");
ExitBtn.setFont(new Font("黑体", Font.BOLD, 18));
ExitBtn.addActionListener(this);
Box box11 = Box.createVerticalBox();
box11.add(Box.createHorizontalStrut(73));
box11.add(Choose);
box11.add(Box.createVerticalStrut(44));
box11.add(AddBtn);
box11.add(Box.createVerticalStrut(44));
box11.add(SubBtn);
box11.add(Box.createVerticalStrut(44));
box11.add(MulBtn);
box11.add(Box.createVerticalStrut(44));
box11.add(DivBtn);
box11.add(Box.createVerticalStrut(44));
box11.add(ExitBtn);
box11.add(Box.createVerticalStrut(35));
// 添加标签：“您已进入加法测试，现在开始答题："”
title = new JLabel("您好，欢迎进入小学四则运算系统！");
title.setFont(new Font("黑体", Font.BOLD, 18));
Box box = Box.createHorizontalBox();
box.add(Box.createHorizontalGlue());
box.add(title);
box.add(Box.createHorizontalGlue());
//添加提示标签
title1 = new JLabel("注：请在左边栏内选择运算后开始答题，除法运算结果保留两位小数，其余运算保留一位小数。");
title1.setFont(new Font("黑体", Font.BOLD, 14));
Box box12 = Box.createHorizontalBox();
box12.add(Box.createHorizontalGlue());
box12.add(title1);
box12.add(Box.createHorizontalGlue());
// 添加每道题的符号标签
jsymbol1 = new JLabel("?");
jsymbol2 = new JLabel("?");
jsymbol3 = new JLabel("?");
jsymbol4 = new JLabel("?");
jsymbol5 = new JLabel("?");
jsymbol6 = new JLabel("?");
jsymbol7 = new JLabel("?");
jsymbol8 = new JLabel("?");
jsymbol9 = new JLabel("?");
jsymbol10 = new JLabel("?");
// 设置答案对错的标签
jjudge1 = new JLabel("?");
jjudge2 = new JLabel("?");
jjudge3 = new JLabel("?");
jjudge4 = new JLabel("?");
jjudge5 = new JLabel("?");
jjudge6 = new JLabel("?");
jjudge7 = new JLabel("?");
jjudge8 = new JLabel("?");
jjudge9 = new JLabel("?");
jjudge10 = new JLabel("?");
// 为每道题的结果设置为不可更改
jjresult1 = new JTextField(8);
jjresult1.setEditable(false);
jjresult2 = new JTextField(8);
jjresult2.setEditable(false);
jjresult3 = new JTextField(8);
jjresult3.setEditable(false);
jjresult4 = new JTextField(8);
jjresult4.setEditable(false);
jjresult5 = new JTextField(8);
jjresult5.setEditable(false);
jjresult6 = new JTextField(8);
jjresult6.setEditable(false);
jjresult7 = new JTextField(8);
jjresult7.setEditable(false);
jjresult8 = new JTextField(8);
jjresult8.setEditable(false);
jjresult9 = new JTextField(8);
jjresult9.setEditable(false);
jjresult10 = new JTextField(8);
jjresult10.setEditable(false);
// 设置第一个数据和第二个数据为不可见
jfirst1 = new JTextField(6);
jfirst1.setEditable(false);
jfirst2 = new JTextField(6);
jfirst2.setEditable(false);
jsecond1 = new JTextField(6);
jsecond1.setEditable(false);
jsecond2 = new JTextField(6);
jsecond2.setEditable(false);
janswer1 = new JTextField(6);
janswer2 = new JTextField(6);
// 把标签加入盒子box1中
Box box1 = Box.createHorizontalBox();
box1.add(Box.createHorizontalStrut(50));
box1.add(jfirst1);
box1.add(Box.createHorizontalStrut(3));
box1.add(jsymbol1);
box1.add(Box.createHorizontalStrut(3));
box1.add(jsecond1);
box1.add(Box.createHorizontalStrut(5));
box1.add(new JLabel("="));
box1.add(Box.createHorizontalStrut(5));
box1.add(janswer1);
box1.add(Box.createHorizontalStrut(5));
box1.add(new JLabel("对/错："));
box1.add(jjudge1);
box1.add(Box.createHorizontalStrut(20));
box1.add(new JLabel("正确答案："));
box1.add(jjresult1);
box1.add(Box.createHorizontalStrut(73));
box1.add(jfirst2);
box1.add(Box.createHorizontalStrut(3));
box1.add(jsymbol2);
box1.add(Box.createHorizontalStrut(3));
box1.add(jsecond2);
box1.add(Box.createHorizontalStrut(5));
box1.add(new JLabel("="));
box1.add(Box.createHorizontalStrut(5));
box1.add(janswer2);
box1.add(Box.createHorizontalStrut(5));
box1.add(new JLabel("对/错："));
box1.add(jjudge2);
box1.add(Box.createHorizontalStrut(20));
box1.add(new JLabel("正确答案："));
box1.add(jjresult2);
box1.add(Box.createHorizontalStrut(50));
jfirst3 = new JTextField(6);
jfirst3.setEditable(false);
jfirst4 = new JTextField(6);
jfirst4.setEditable(false);
jsecond3 = new JTextField(6);
jsecond3.setEditable(false);
jsecond4 = new JTextField(6);
jsecond4.setEditable(false);
janswer3 = new JTextField(6);
janswer4 = new JTextField(6);
Box box2 = Box.createHorizontalBox();
box2.add(Box.createHorizontalStrut(50));
box2.add(jfirst3);
box2.add(Box.createHorizontalStrut(3));
box2.add(jsymbol3);
box2.add(Box.createHorizontalStrut(3));
box2.add(jsecond3);
box2.add(Box.createHorizontalStrut(5));
box2.add(new JLabel("="));
box2.add(Box.createHorizontalStrut(5));
box2.add(janswer3);
box2.add(Box.createHorizontalStrut(5));
box2.add(new JLabel("对/错："));
box2.add(jjudge3);
box2.add(Box.createHorizontalStrut(20));
box2.add(new JLabel("正确答案："));
box2.add(jjresult3);
box2.add(Box.createHorizontalStrut(73));
box2.add(jfirst4);
box2.add(Box.createHorizontalStrut(3));
box2.add(jsymbol4);
box2.add(Box.createHorizontalStrut(3));
box2.add(jsecond4);
box2.add(Box.createHorizontalStrut(5));
box2.add(new JLabel("="));
box2.add(Box.createHorizontalStrut(5));
box2.add(janswer4);
box2.add(Box.createHorizontalStrut(5));
box2.add(new JLabel("对/错："));
box2.add(jjudge4);
box2.add(Box.createHorizontalStrut(20));
box2.add(new JLabel("正确答案："));
box2.add(jjresult4);
box2.add(Box.createHorizontalStrut(50));
jfirst5 = new JTextField(6);
jfirst5.setEditable(false);
jfirst6 = new JTextField(6);
jfirst6.setEditable(false);
jsecond5 = new JTextField(6);
jsecond5.setEditable(false);
jsecond6 = new JTextField(6);
jsecond6.setEditable(false);
janswer5 = new JTextField(6);
janswer6 = new JTextField(6);
Box box3 = Box.createHorizontalBox();
box3.add(Box.createHorizontalStrut(50));
box3.add(jfirst5);
box3.add(Box.createHorizontalStrut(3));
box3.add(jsymbol5);
box3.add(Box.createHorizontalStrut(3));
box3.add(jsecond5);
box3.add(Box.createHorizontalStrut(5));
box3.add(new JLabel("="));
box3.add(Box.createHorizontalStrut(5));
box3.add(janswer5);
box3.add(Box.createHorizontalStrut(5));
box3.add(new JLabel("对/错："));
box3.add(jjudge5);
box3.add(Box.createHorizontalStrut(20));
box3.add(new JLabel("正确答案："));
box3.add(jjresult5);
box3.add(Box.createHorizontalStrut(73));
box3.add(jfirst6);
box3.add(Box.createHorizontalStrut(3));
box3.add(jsymbol6);
box3.add(Box.createHorizontalStrut(3));
box3.add(jsecond6);
box3.add(Box.createHorizontalStrut(5));
box3.add(new JLabel("="));
box3.add(Box.createHorizontalStrut(5));
box3.add(janswer6);
box3.add(Box.createHorizontalStrut(5));
box3.add(new JLabel("对/错："));
box3.add(jjudge6);
box3.add(Box.createHorizontalStrut(20));
box3.add(new JLabel("正确答案："));
box3.add(jjresult6);
box3.add(Box.createHorizontalStrut(50));
jfirst7 = new JTextField(6);
jfirst7.setEditable(false);
jfirst8 = new JTextField(6);
jfirst8.setEditable(false);
jsecond7 = new JTextField(6);
jsecond7.setEditable(false);
jsecond8 = new JTextField(6);
jsecond8.setEditable(false);
janswer7 = new JTextField(6);
janswer8 = new JTextField(6);
Box box4 = Box.createHorizontalBox();
box4.add(Box.createHorizontalStrut(50));
box4.add(jfirst7);
box4.add(Box.createHorizontalStrut(3));
box4.add(jsymbol7);
box4.add(Box.createHorizontalStrut(3));
box4.add(jsecond7);
box4.add(Box.createHorizontalStrut(5));
box4.add(new JLabel("="));
box4.add(Box.createHorizontalStrut(5));
box4.add(janswer7);
box4.add(Box.createHorizontalStrut(5));
box4.add(new JLabel("对/错："));
box4.add(jjudge7);
box4.add(Box.createHorizontalStrut(20));
box4.add(new JLabel("正确答案："));
box4.add(jjresult7);
box4.add(Box.createHorizontalStrut(73));
box4.add(jfirst8);
box4.add(Box.createHorizontalStrut(3));
box4.add(jsymbol8);
box4.add(Box.createHorizontalStrut(3));
box4.add(jsecond8);
box4.add(Box.createHorizontalStrut(5));
box4.add(new JLabel("="));
box4.add(Box.createHorizontalStrut(5));
box4.add(janswer8);
box4.add(Box.createHorizontalStrut(5));
box4.add(new JLabel("对/错："));
box4.add(jjudge8);
box4.add(Box.createHorizontalStrut(20));
box4.add(new JLabel("正确答案："));
box4.add(jjresult8);
box4.add(Box.createHorizontalStrut(50));
jfirst9 = new JTextField(6);
jfirst9.setEditable(false);
jfirst10 = new JTextField(6);
jfirst10.setEditable(false);
jsecond9 = new JTextField(6);
jsecond9.setEditable(false);
jsecond10 = new JTextField(6);
jsecond10.setEditable(false);
janswer9 = new JTextField(6);
janswer10 = new JTextField(6);
Box box5 = Box.createHorizontalBox();
box5.add(Box.createHorizontalStrut(50));
box5.add(jfirst9);
box5.add(Box.createHorizontalStrut(3));
box5.add(jsymbol9);
box5.add(Box.createHorizontalStrut(3));
box5.add(jsecond9);
box5.add(Box.createHorizontalStrut(5));
box5.add(new JLabel("="));
box5.add(Box.createHorizontalStrut(5));
box5.add(janswer9);
box5.add(Box.createHorizontalStrut(5));
box5.add(new JLabel("对/错："));
box5.add(jjudge9);
box5.add(Box.createHorizontalStrut(20));
box5.add(new JLabel("正确答案："));
box5.add(jjresult9);
box5.add(Box.createHorizontalStrut(73));
box5.add(jfirst10);
box5.add(Box.createHorizontalStrut(3));
box5.add(jsymbol10);
box5.add(Box.createHorizontalStrut(3));
box5.add(jsecond10);
box5.add(Box.createHorizontalStrut(5));
box5.add(new JLabel("="));
box5.add(Box.createHorizontalStrut(5));
box5.add(janswer10);
box5.add(Box.createHorizontalStrut(5));
box5.add(new JLabel("对/错："));
box5.add(jjudge10);
box5.add(Box.createHorizontalStrut(20));
box5.add(new JLabel("正确答案："));
box5.add(jjresult10);
box5.add(Box.createHorizontalStrut(50));
//设置提交答案按钮
SubmitBtn = new JButton("提交答案");
SubmitBtn.setFont(new Font("黑体", Font.BOLD, 18));
SubmitBtn.addActionListener(this);
//添加总题数标签
jtotle = new JLabel("总题数：10 题");
jtotle.setFont(new Font("黑体", Font.BOLD, 18));
//添加答对题数标签
jright = new JLabel("答对题数：");
jright.setFont(new Font("黑体", Font.BOLD, 18));
jjright = new JLabel("0");
jjright.setFont(new Font("黑体", Font.BOLD, 18));
Box box6 = Box.createHorizontalBox();
box6.add(Box.createHorizontalStrut(50));
box6.add(SubmitBtn);
box6.add(Box.createHorizontalStrut(50));
box6.add(jtotle);
box6.add(Box.createHorizontalStrut(50));
box6.add(jright);
box6.add(Box.createHorizontalStrut(20));
box6.add(jjright);
box6.add(Box.createHorizontalStrut(50));
//创建一个容器
Box box7 = Box.createVerticalBox();
box7.add(Box.createVerticalStrut(30));
box7.add(box);
box7.add(Box.createVerticalStrut(30));
box7.add(box12);
box7.add(Box.createVerticalStrut(30));
box7.add(box1);
box7.add(Box.createVerticalStrut(30));
box7.add(box2);
box7.add(Box.createVerticalStrut(30));
box7.add(box3);
box7.add(Box.createVerticalStrut(30));
box7.add(box4);
box7.add(Box.createVerticalStrut(30));
box7.add(box5);
box7.add(Box.createVerticalStrut(30));
box7.add(box6);
box7.add(Box.createVerticalStrut(30));
//创建一个容器
Box box8 = Box.createHorizontalBox();
box8.add(box11);
box8.add(Box.createHorizontalStrut(40));
box8.add(new JSeparator(JSeparator.VERTICAL));
box8.add(box7);
c.add(box8);
f.setVisible(true);
}
public static void main(String args[]) {
new arithmetic();
}
@Override
public void actionPerformed(ActionEvent e) {
/* 加法计算 */
if (e.getSource() == AddBtn) {
flag=1;
jsymbol1.setText("+");
jsymbol2.setText("+");
jsymbol3.setText("+");
jsymbol4.setText("+");
jsymbol5.setText("+");
jsymbol6.setText("+");
jsymbol7.setText("+");
jsymbol8.setText("+");
jsymbol9.setText("+");
jsymbol10.setText("+");
fun();
random();
}
//提交答案并判断
if (e.getSource() == SubmitBtn && flag==1) {
double a1, a2, a3, a4, a5, a6, a7, a8, a9, a10;
int true1 = 0;
// 计算第一道题
String answer1 = null;
a1 = first1 + second1;
answer1 = Double.toString(a1);
String result1 = janswer1.getText();
if (result1.equals(answer1)) {
jjudge1.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));//显示答对题数
} else {
jjudge1.setText("错");
jjresult1.setText(answer1);//显示正确结果
}
// 计算第二道题
String answer2 = null;
a2 = first2 + second2;
answer2 = Double.toString(a2);
String result2 = janswer2.getText();
if (result2.equals(answer2)) {
jjudge2.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge2.setText("错");
jjresult2.setText(answer2);
}
// 计算第三道题
String answer3 = null;
a3 = first3 + second3;
answer3 = Double.toString(a3);
String result3 = janswer3.getText();
if (result3.equals(answer3)) {
jjudge3.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge3.setText("错");
jjresult3.setText(answer3);
}
// 计算第四道题
String answer4 = null;
a4 = first4 + second4;
answer4 = Double.toString(a4);
String result4 = janswer4.getText();
if (result4.equals(answer4)) {
jjudge4.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge4.setText("错");
jjresult4.setText(answer4);
}
// 计算第五道题
String answer5 = null;
a5 = first5 + second5;
answer5 = Double.toString(a5);
String result5 = janswer5.getText();
if (result5.equals(answer5)) {
jjudge5.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge5.setText("错");
jjresult5.setText(answer5);
}
// 计算第六道题
String answer6 = null;
a6 = first6 + second6;
answer6 = Double.toString(a6);
String result6 = janswer6.getText();
if (result6.equals(answer6)) {
jjudge6.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge6.setText("错");
jjresult6.setText(answer6);
}
// 计算第七道题
String answer7 = null;
a7 = first7 + second7;
answer7 = Double.toString(a7);
String result7 = janswer7.getText();
if (result7.equals(answer7)) {
jjudge7.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge7.setText("错");
jjresult7.setText(answer7);
}
// 计算第八道题
String answer8 = null;
a8 = first8 + second8;
answer8 = Double.toString(a8);
String result8 = janswer8.getText();
if (result8.equals(answer8)) {
jjudge8.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge8.setText("错");
jjresult8.setText(answer8);
}
// 计算第九道题
String answer9 = null;
a9 = first9 + second9;
answer9 = Double.toString(a9);
String result9 = janswer9.getText();
if (result9.equals(answer9)) {
jjudge9.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge9.setText("错");
jjresult9.setText(answer9);
}
// 计算第十道题
String answer10 = null;
a10 = first10 + second10;
answer10 = Double.toString(a10);
String result10 = janswer10.getText();
if (result10.equals(answer10)) {
jjudge10.setText("对");
true1 = true1 + 1;
jjright.setText(Integer.toString(true1));
} else {
jjudge10.setText("错");
jjresult10.setText(answer10);
}
}
/* 减法计算 */
else if (e.getSource() == SubBtn) {
flag=2;
jsymbol1.setText("-");
jsymbol2.setText("-");
jsymbol3.setText("-");
jsymbol4.setText("-");
jsymbol5.setText("-");
jsymbol6.setText("-");
jsymbol7.setText("-");
jsymbol8.setText("-");
jsymbol9.setText("-");
jsymbol10.setText("-");
fun();
random();
}
if (e.getSource() == SubmitBtn && flag==2) {
double a1_1, a2_1, a3_1, a4_1, a5_1, a6_1, a7_1, a8_1, a9_1, a10_1;
int true2 = 0;
// 计算第一道题
String answer1_1 = null;
a1_1 = first1 - second1;
answer1_1 = Double.toString(a1_1);
String result1_1 = janswer1.getText();
if (result1_1.equals(answer1_1)) {
jjudge1.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge1.setText("错");
jjresult1.setText(answer1_1);
}
// 计算第二道题
String answer2_1 = null;
a2_1 = first2 - second2;
answer2_1 = Double.toString(a2_1);
String result2_1 = janswer2.getText();
if (result2_1.equals(answer2_1)) {
jjudge2.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge2.setText("错");
jjresult2.setText(answer2_1);
}
// 计算第三道题
String answer3_1 = null;
a3_1 = first3 - second3;
answer3_1 = Double.toString(a3_1);
String result3_1 = janswer3.getText();
if (result3_1.equals(answer3_1)) {
jjudge3.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge3.setText("错");
jjresult3.setText(answer3_1);
}
// 计算第四道题
String answer4_1 = null;
a4_1 = first4 - second4;
answer4_1 = Double.toString(a4_1);
String result4_1 = janswer4.getText();
if (result4_1.equals(answer4_1)) {
jjudge4.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge4.setText("错");
jjresult4.setText(answer4_1);
}
// 计算第五道题
String answer5_1 = null;
a5_1 = first5 - second5;
answer5_1 = Double.toString(a5_1);
String result5_1 = janswer5.getText();
if (result5_1.equals(answer5_1)) {
jjudge5.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge5.setText("错");
jjresult5.setText(answer5_1);
}
// 计算第六道题
String answer6_1 = null;
a6_1 = first6 - second6;
answer6_1 = Double.toString(a6_1);
String result6_1 = janswer6.getText();
if (result6_1.equals(answer6_1)) {
jjudge6.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge6.setText("错");
jjresult6.setText(answer6_1);
}
// 计算第七道题
String answer7_1 = null;
a7_1 = first7 - second7;
answer7_1 = Double.toString(a7_1);
String result7_1 = janswer7.getText();
if (result7_1.equals(answer7_1)) {
jjudge7.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge7.setText("错");
jjresult7.setText(answer7_1);
}
// 计算第八道题
String answer8_1 = null;
a8_1 = first8 - second8;
answer8_1 = Double.toString(a8_1);
String result8_1 = janswer8.getText();
if (result8_1.equals(answer8_1)) {
jjudge8.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge8.setText("错");
jjresult8.setText(answer8_1);
}
// 计算第九道题
String answer9_1 = null;
a9_1 = first9 - second9;
answer9_1 = Double.toString(a9_1);
String result9_1 = janswer9.getText();
if (result9_1.equals(answer9_1)) {
jjudge9.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge9.setText("错");
jjresult9.setText(answer9_1);
}
// 计算第十道题
String answer10_1 = null;
a10_1 = first10 - second10;
answer10_1 = Double.toString(a10_1);
String result10_1 = janswer10.getText();
if (result10_1.equals(answer10_1)) {
jjudge10.setText("对");
true2 = true2 + 1;
jjright.setText(Integer.toString(true2));
} else {
jjudge10.setText("错");
jjresult10.setText(answer10_1);
}
}
/* 乘法计算 */
else if (e.getSource() == MulBtn) {
flag=3;
jsymbol1.setText("*");
jsymbol2.setText("*");
jsymbol3.setText("*");
jsymbol4.setText("*");
jsymbol5.setText("*");
jsymbol6.setText("*");
jsymbol7.setText("*");
jsymbol8.setText("*");
jsymbol9.setText("*");
jsymbol10.setText("*");
fun();
random();
}
if (e.getSource() == SubmitBtn && flag==3) {
double a1_2, a2_2, a3_2, a4_2, a5_2, a6_2, a7_2, a8_2, a9_2, a10_2;
int true3 = 0;
// 计算第一道题
String answer1_2 = null;
a1_2 = first1 * second1;
answer1_2 = Double.toString(a1_2);
String result1_2 = janswer1.getText();
if (result1_2.equals(answer1_2)) {
jjudge1.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge1.setText("错");
jjresult1.setText(answer1_2);
}
// 计算第二道题
String answer2_2 = null;
a2_2 = first2 * second2;
answer2_2 = Double.toString(a2_2);
String result2_2 = janswer2.getText();
if (result2_2.equals(answer2_2)) {
jjudge2.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge2.setText("错");
jjresult2.setText(answer2_2);
}
// 计算第三道题
String answer3_2 = null;
a3_2 = first3 * second3;
answer3_2 = Double.toString(a3_2);
String result3_2 = janswer3.getText();
if (result3_2.equals(answer3_2)) {
jjudge3.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge3.setText("错");
jjresult3.setText(answer3_2);
}
// 计算第四道题
String answer4_2 = null;
a4_2 = first4 * second4;
answer4_2 = Double.toString(a4_2);
String result4_2 = janswer4.getText();
if (result4_2.equals(answer4_2)) {
jjudge4.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge4.setText("错");
jjresult4.setText(answer4_2);
}
// 计算第五道题
String answer5_2 = null;
a5_2 = first5 * second5;
answer5_2 = Double.toString(a5_2);
String result5_2 = janswer5.getText();
if (result5_2.equals(answer5_2)) {
jjudge5.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge5.setText("错");
jjresult5.setText(answer5_2);
}
// 计算第六道题
String answer6_2 = null;
a6_2 = first6 * second6;
answer6_2 = Double.toString(a6_2);
String result6_2 = janswer6.getText();
if (result6_2.equals(answer6_2)) {
jjudge6.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge6.setText("错");
jjresult6.setText(answer6_2);
}
// 计算第七道题
String answer7_2 = null;
a7_2 = first7 * second7;
answer7_2 = Double.toString(a7_2);
String result7_2 = janswer7.getText();
if (result7_2.equals(answer7_2)) {
jjudge7.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge7.setText("错");
jjresult7.setText(answer7_2);
}
// 计算第八道题
String answer8_2 = null;
a8_2 = first8 * second8;
answer8_2 = Double.toString(a8_2);
String result8_2 = janswer8.getText();
if (result8_2.equals(answer8_2)) {
jjudge8.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge8.setText("错");
jjresult8.setText(answer8_2);
}
// 计算第九道题
String answer9_2 = null;
a9_2 = first9 * second9;
answer9_2 = Double.toString(a9_2);
String result9_2 = janswer9.getText();
if (result9_2.equals(answer9_2)) {
jjudge9.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge9.setText("错");
jjresult9.setText(answer9_2);
}
// 计算第十道题
String answer10_2 = null;
a10_2 = first10 * second10;
answer10_2 = Double.toString(a10_2);
String result10_2 = janswer10.getText();
if (result10_2.equals(answer10_2)) {
jjudge10.setText("对");
true3 = true3 + 1;
jjright.setText(Integer.toString(true3));
} else {
jjudge10.setText("错");
jjresult10.setText(answer10_2);
}
}
/* 除法计算 */
else if (e.getSource() == DivBtn) {
flag=4;
jsymbol1.setText("/");
jsymbol2.setText("/");
jsymbol3.setText("/");
jsymbol4.setText("/");
jsymbol5.setText("/");
jsymbol6.setText("/");
jsymbol7.setText("/");
jsymbol8.setText("/");
jsymbol9.setText("/");
jsymbol10.setText("/");
fun();
random();
}
if (e.getSource() == SubmitBtn && flag==4) {
double a1_3, a2_3, a3_3, a4_3, a5_3, a6_3, a7_3, a8_3, a9_3, a10_3;
int true4 = 0;
// 计算第一道题
String answer1_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}//除数为0时的操作
a1_3 = first1 / second1;
answer1_3 = String.format("%.2f", a1_3);//除法结果保留小数点后两位
String result1_3 = janswer1.getText();
if (result1_3.equals(answer1_3)) {//判断输入结果与正确结果是否相等
jjudge1.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge1.setText("错");
jjresult1.setText(answer1_3);
}
// 计算第二道题
String answer2_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a2_3 = first2 / second2;
answer2_3 = String.format("%.2f", a2_3);
String result2_3 = janswer2.getText();
if (result2_3.equals(answer2_3)) {
jjudge2.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge2.setText("错");
jjresult2.setText(answer2_3);
}
// 计算第三道题
String answer3_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a3_3 = first3 / second3;
answer3_3 = String.format("%.2f", a3_3);
String result3_3 = janswer3.getText();
if (result3_3.equals(answer3_3)) {
jjudge3.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge3.setText("错");
jjresult3.setText(answer3_3);
}
// 计算第四道题
String answer4_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a4_3 = first4 / second4;
answer4_3 = String.format("%.2f", a4_3);
String result4_3 = janswer4.getText();
if (result4_3.equals(answer4_3)) {
jjudge4.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge4.setText("错");
jjresult4.setText(answer4_3);
}
// 计算第五道题
String answer5_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a5_3 = first5 / second5;
answer5_3 = String.format("%.2f", a5_3);
String result5_3 = janswer5.getText();
if (result5_3.equals(answer5_3)) {
jjudge5.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge5.setText("错");
jjresult5.setText(answer5_3);
}
// 计算第六道题
String answer6_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a6_3 = first6 / second6;
answer6_3 = String.format("%.2f", a6_3);
String result6_3 = janswer6.getText();
if (result6_3.equals(answer6_3)) {
jjudge6.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge6.setText("错");
jjresult6.setText(answer6_3);
}
// 计算第七道题
String answer7_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a7_3 = first7 / second7;
answer7_3 = String.format("%.2f", a7_3);
String result7_3 = janswer7.getText();
if (result7_3.equals(answer7_3)) {
jjudge7.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge7.setText("错");
jjresult7.setText(answer7_3);
}
// 计算第八道题
String answer8_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a8_3 = first8 / second8;
answer8_3 = String.format("%.2f", a8_3);
String result8_3 = janswer8.getText();
if (result8_3.equals(answer8_3)) {
jjudge8.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge8.setText("错");
jjresult8.setText(answer8_3);
}
// 计算第九道题
String answer9_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a9_3 = first9 / second9;
answer9_3 = String.format("%.2f", a9_3);
String result9_3 = janswer9.getText();
if (result9_3.equals(answer9_3)) {
jjudge9.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge9.setText("错");
jjresult9.setText(answer9_3);
}
// 计算第十道题
String answer10_3 = null;
if(second1==0){
do{
random();
}while(second1!=0);
}
a10_3 = first10 / second10;
answer10_3 = String.format("%.2f", a10_3);
String result10_3 = janswer10.getText();
if (result10_3.equals(answer10_3)) {
jjudge10.setText("对");
true4 = true4 + 1;
jjright.setText(Integer.toString(true4));
} else {
jjudge10.setText("错");
jjresult10.setText(answer10_3);
}
}
else if (e.getSource() == ExitBtn) {
System.exit(0);
}
}
/*将十个题分别的第一个数和第二个数置为空，将答对题数置为“？”*/
public void fun(){
janswer1.setText("");
janswer2.setText("");
janswer3.setText("");
janswer4.setText("");
janswer5.setText("");
janswer6.setText("");
janswer7.setText("");
janswer8.setText("");
janswer9.setText("");
janswer10.setText("");
jjresult1.setText("");
jjresult2.setText("");
jjresult3.setText("");
jjresult4.setText("");
jjresult5.setText("");
jjresult6.setText("");
jjresult7.setText("");
jjresult8.setText("");
jjresult9.setText("");
jjresult10.setText("");
jjright.setText("0");
}
/*产生十道题分别第一个数和第二个数的随机数*/
public void random(){
Random rand = new Random();
first1 = rand.nextInt(200);
first1 = first1 - 100;
second1 = rand.nextInt(200);
second1 = second1 - 100;
if (first1 < 0) {
String f1 = Float.toString(first1);
jfirst1.setText("(" + f1 + ")");
} else {
String f1 = Float.toString(first1);
jfirst1.setText(f1);
}
if (second1 < 0) {
String s1 = Float.toString(second1);
jsecond1.setText("(" + s1 + ")");
} else {
String s1 = Float.toString(second1);
jsecond1.setText(s1);
}
first2 = rand.nextInt(200);
first2 = first2 - 100;
second2 = rand.nextInt(200);
second2 = second2 - 100;
if (first2 < 0) {
String f2 = Float.toString(first2);
jfirst2.setText("(" + f2 + ")");
} else {
String f2 = Float.toString(first2);
jfirst2.setText(f2);
}
if (second2 < 0) {
String s2 = Float.toString(second2);
jsecond2.setText("(" + s2 + ")");
} else {
String s2 = Float.toString(second2);
jsecond2.setText(s2);
}
first3 = rand.nextInt(200);
first3 = first3 - 100;
second3 = rand.nextInt(200);
second3 = second3 - 100;
if (first3 < 0) {
String f3 = Float.toString(first3);
jfirst3.setText("(" + f3 + ")");
} else {
String f3 = Float.toString(first3);
jfirst3.setText(f3);
}
if (second3 < 0) {
String s3 = Float.toString(second3);
jsecond3.setText("(" + s3 + ")");
} else {
String s3 = Float.toString(second3);
jsecond3.setText(s3);
}
first4 = rand.nextInt(200);
first4 = first4 - 100;
second4 = rand.nextInt(200);
second4 = second4 - 100;
if (first4 < 0) {
String f4 = Float.toString(first4);
jfirst4.setText("(" + f4 + ")");
} else {
String f4 = Float.toString(first4);
jfirst4.setText(f4);
}
if (second4 < 0) {
String s4 = Float.toString(second4);
jsecond4.setText("(" + s4 + ")");
} else {
String s4 = Float.toString(second4);
jsecond4.setText(s4);
}
first5 = rand.nextInt(200);
first5 = first5 - 100;
second5 = rand.nextInt(200);
second5 = second5 - 100;
if (first5 < 0) {
String f5 = Float.toString(first5);
jfirst5.setText("(" + f5 + ")");
} else {
String f5 = Float.toString(first5);
jfirst5.setText(f5);
}
if (second5 < 0) {
String s5 = Float.toString(second5);
jsecond5.setText("(" + s5 + ")");
} else {
String s5 = Float.toString(second5);
jsecond5.setText(s5);
}
first6 = rand.nextInt(200);
first6 = first6 - 100;
second6 = rand.nextInt(200);
second6 = second6 - 100;
if (first6 < 0) {
String f6 = Float.toString(first6);
jfirst6.setText("(" + f6 + ")");
} else {
String f6 = Float.toString(first6);
jfirst6.setText(f6);
}
if (second6 < 0) {
String s6 = Float.toString(second6);
jsecond6.setText("(" + s6 + ")");
} else {
String s6 = Float.toString(second6);
jsecond6.setText(s6);
}
first7 = rand.nextInt(200);
first7 = first7 - 100;
second7 = rand.nextInt(200);
second7 = second7 - 100;
if (first7 < 0) {
String f7 = Float.toString(first7);
jfirst7.setText("(" + f7 + ")");
} else {
String f7 = Float.toString(first7);
jfirst7.setText(f7);
}
if (second7 < 0) {
String s7 = Float.toString(second7);
jsecond7.setText("(" + s7 + ")");
} else {
String s7 = Float.toString(second7);
jsecond7.setText(s7);
}
first8 = rand.nextInt(200);
first8 = first8 - 100;
second8 = rand.nextInt(200);
second8 = second8 - 100;
if (first8 < 0) {
String f8 = Float.toString(first8);
jfirst8.setText("(" + f8 + ")");
} else {
String f8 = Float.toString(first8);
jfirst8.setText(f8);
}
if (second8 < 0) {
String s8 = Float.toString(second8);
jsecond8.setText("(" + s8 + ")");
} else {
String s8 = Float.toString(second8);
jsecond8.setText(s8);
}
first9 = rand.nextInt(200);
first9 = first9 - 100;
second9 = rand.nextInt(200);
second9 = second9 - 100;
if (first9 < 0) {
String f9 = Float.toString(first9);
jfirst9.setText("(" + f9 + ")");
} else {
String f9 = Float.toString(first9);
jfirst9.setText(f9);
}
if (second9 < 0) {
String s9 = Float.toString(second9);
jsecond9.setText("(" + s9 + ")");
} else {
String s9 = Float.toString(second9);
jsecond9.setText(s9);
}
first10 = rand.nextInt(200);
first10 = first10 - 100;
second10 = rand.nextInt(200);
second10 = second10 - 100;
if (first10 < 0) {
String f10 = Float.toString(first10);
jfirst10.setText("(" + f10 + ")");
} else {
String f10 = Float.toString(first10);
jfirst10.setText(f10);
}
if (second10 < 0) {
String s10 = Float.toString(second10);
jsecond10.setText("(" + s10 + ")");
} else {
String s10 = Float.toString(second10);
jsecond10.setText(s10);
}
}
}
截图：
