zoukankan html css js c++ java

简单的四则运算

初步代码：

 1 package sy11;
 2 
 3 import java.awt.*;
 4 import javax.swing.*;
 5 import java.awt.event.*;
 6 
 7 public class JiaFa {
 8     public static void main(String[] args) {
 9         new NumJframe();
10     }
11 }
12 
13 class JiafaSum {// 定义全局变量
14     public static int sum = 0;
15 }
16 
17 class NumJframe extends JFrame {
18     NumJframe() {
19         setLayout(null);
20         Container con = getContentPane();// 创建一个内容面板容器
21         bank1();// 获得题目
22         bank2();// 确认答案
23         setTitle("100以內的加法测试");
24         setBounds(200, 200, 600, 300);// 设置出现位置和窗口大小
25         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设置关闭方式
26         setVisible(true);// 设置是否展示窗口
27         con.setBackground(Color.lightGray);
28     }
29 
30     void bank1() {// 获得题目按钮区
31         JTextField jt = new JTextField();// 文本框1
32         jt.setBounds(120, 40, 200, 30);
33         JButton jb1 = new JButton();// 按钮1
34         jb1.setBounds(20, 40, 100, 30);
35         jb1.setText("获得题目");
36         jb1.addActionListener(new ActionListener() {
37 
38             public void actionPerformed(ActionEvent e) {
39 
40                 int jiashu1 = (int) (Math.random() * 100 + 1);
41                 int jiashu2 = (int) (Math.random() * 100 + 1);
42                 String js1 = "" + jiashu1;
43                 String js2 = "" + jiashu2;
44                 JiafaSum.sum = jiashu1 + jiashu2;
45                 jt.setText(js1 + "+" + js2 + "=" + "");
46             }
47         });
48         add(jt);
49         add(jb1);
50     }
51 
52     void bank2() {// 确认答案按钮区
53         JTextField jt2 = new JTextField();// 文本框2
54         jt2.setBounds(120, 75, 200, 30);
55         JButton jb2 = new JButton();// 按钮1
56         jb2.setBounds(20, 75, 100, 30);
57         jb2.setText("确认答案");
58         jb2.addActionListener(new ActionListener() {
59             public void actionPerformed(ActionEvent e) {
60                 int sum = JiafaSum.sum;
61                 String inputSum = jt2.getText();
62                 int inputsum = Integer.parseInt(inputSum);
63                 System.out.println("sum=" + sum);
64                 System.out.println("inputSum=" + inputSum);
65                 if (inputsum == sum) {
66 
67                     JOptionPane.showMessageDialog(null, "答案正确", "消息对话框", JOptionPane.INFORMATION_MESSAGE);
68                 } else {
69                     JOptionPane.showMessageDialog(null, "答案错误", "消息对话框", JOptionPane.WARNING_MESSAGE);
70                 }
71             }
72         });
73         add(jt2);
74         add(jb2);
75     }
76 }

加法

运行结果：

 1 package sy11;
 2 
 3 import java.awt.*;
 4 import javax.swing.*;
 5 import java.awt.event.*;
 6 
 7 public class JianFa {
 8     public static void main(String[] args) {
 9         new jianfaJframe();
10     }
11 }
12 
13 class jianfaDiff {// 定义全局变量
14     public static int diff = 0;
15 }
16 
17 class jianfaJframe extends JFrame {
18     jianfaJframe() {
19         setLayout(null);
20         Container con = getContentPane();// 创建一个内容面板容器
21         bank1();// 获得题目
22         bank2();// 确认答案
23         setTitle("100以內的减法测试");
24         setBounds(200, 200, 600, 300);// 设置出现位置和窗口大小
25         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设置关闭方式
26         setVisible(true);// 设置是否展示窗口
27         con.setBackground(Color.lightGray);
28     }
29 
30     void bank1() {// 获得题目按钮区
31         JTextField jt = new JTextField();// 文本框1
32         jt.setBounds(120, 40, 200, 30);
33         JButton jb1 = new JButton();// 按钮1
34         jb1.setBounds(20, 40, 100, 30);
35         jb1.setText("获得题目");
36         jb1.addActionListener(new ActionListener() {
37 
38             public void actionPerformed(ActionEvent e) {
39 
40                 int beijianshu = (int) (Math.random() * 100 + 1);
41                 int jianshu = (int) (Math.random() * beijianshu + 1);
42                 String bjs = "" + beijianshu;
43                 String js = "" + jianshu;
44                 jianfaDiff.diff = beijianshu - jianshu;
45                 jt.setText(bjs + "-" + js + "=" + "");
46             }
47         });
48         add(jt);
49         add(jb1);
50     }
51 
52     void bank2() {// 确认答案按钮区
53         JTextField jt2 = new JTextField();// 文本框2
54         jt2.setBounds(120, 75, 200, 30);
55         JButton jb2 = new JButton();// 按钮1
56         jb2.setBounds(20, 75, 100, 30);
57         jb2.setText("确认答案");
58         jb2.addActionListener(new ActionListener() {
59             public void actionPerformed(ActionEvent e) {
60                 int diff = jianfaDiff.diff;
61                 String inputDiff = jt2.getText();
62                 int inputdiff = Integer.parseInt(inputDiff);
63                 System.out.println("diff=" + diff);
64                 System.out.println("inputSum=" + inputDiff);
65                 if (inputdiff == diff) {
66 
67                     JOptionPane.showMessageDialog(null, "答案正确", "消息对话框", JOptionPane.INFORMATION_MESSAGE);
68                 } 
69                 else {
70                     JOptionPane.showMessageDialog(null, "答案错误", "消息对话框", JOptionPane.WARNING_MESSAGE);
71                 }
72             }
73         });
74         add(jt2);
75         add(jb2);
76     }
77 }

减法

结果：

 1 package sy11;
 2 
 3 import java.awt.*;
 4 import javax.swing.*;
 5 import java.awt.event.*;
 6 
 7 public class ChengFa {
 8     public static void main(String[] args) {
 9         new MulJframe();
10     }
11 }
12 
13 class ChengfaMul {// 定义全局变量
14     public static int mul = 0;
15 }
16 
17 class MulJframe extends JFrame {
18     MulJframe() {
19         setLayout(null);
20         Container con = getContentPane();// 创建一个内容面板容器
21         bank1();// 获得题目
22         bank2();// 确认答案
23         setTitle("100以內的乘法测试");
24         setBounds(200, 200, 600, 300);// 设置出现位置和窗口大小
25         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设置关闭方式
26         setVisible(true);// 设置是否展示窗口
27         con.setBackground(Color.lightGray);
28     }
29 
30     void bank1() {// 获得题目按钮区
31         JTextField jt = new JTextField();// 文本框1
32         jt.setBounds(120, 40, 200, 30);
33         JButton jb1 = new JButton();// 按钮1
34         jb1.setBounds(20, 40, 100, 30);
35         jb1.setText("获得题目");
36         jb1.addActionListener(new ActionListener() {
37 
38             public void actionPerformed(ActionEvent e) {
39 
40                 int chengshu1 = (int) (Math.random() * 100 + 1);
41                 int chengshu2 = (int) (Math.random() * 100 + 1);
42                 String cs1 = "" + chengshu1;
43                 String cs2 = "" + chengshu2;
44                 ChengfaMul.mul = chengshu1 * chengshu2;
45                 jt.setText(cs1 + "X" + cs2 + "=" + "");
46             }
47         });
48         add(jt);
49         add(jb1);
50     }
51 
52     void bank2() {// 确认答案按钮区
53         JTextField jt2 = new JTextField();// 文本框2
54         jt2.setBounds(120, 75, 200, 30);
55         JButton jb2 = new JButton();// 按钮1
56         jb2.setBounds(20, 75, 100, 30);
57         jb2.setText("确认答案");
58         jb2.addActionListener(new ActionListener() {
59             public void actionPerformed(ActionEvent e) {
60                 int mul = ChengfaMul.mul;
61                 String inputMul = jt2.getText();
62                 int inputmul = Integer.parseInt(inputMul);
63                 System.out.println("mul=" + mul);
64                 System.out.println("inputMul=" + inputMul);
65                 if (inputmul == mul) {
66 
67                     JOptionPane.showMessageDialog(null, "答案正确", "消息对话框", JOptionPane.INFORMATION_MESSAGE);
68                 } 
69                 else {
70                     JOptionPane.showMessageDialog(null, "答案错误", "消息对话框", JOptionPane.WARNING_MESSAGE);
71                 }
72             }
73         });
74         add(jt2);
75         add(jb2);
76     }
77 }

乘法

结果：

 1 package sy11;
 2 
 3 import java.awt.*;
 4 import javax.swing.*;
 5 import java.awt.event.*;
 6 
 7 public class ChuFa {
 8     public static void main(String[] args) {
 9         new ChuFaJframe();
10     }
11 }
12 
13 class ChufaDiv {// 定义全局变量
14     public static int division = 0;
15 }
16 
17 class ChuFaJframe extends JFrame {
18     ChuFaJframe() {
19         setLayout(null);
20         Container con = getContentPane();// 创建一个内容面板容器
21         bank1();// 获得题目
22         bank2();// 确认答案
23         setTitle("100以內的除法测试");
24         setBounds(200, 200, 600, 300);// 设置出现位置和窗口大小
25         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 设置关闭方式
26         setVisible(true);// 设置是否展示窗口
27         con.setBackground(Color.lightGray);
28     }
29 
30     void bank1() {// 获得题目按钮区
31         JTextField jt = new JTextField();// 文本框1
32         jt.setBounds(120, 40, 200, 30);
33         JButton jb1 = new JButton();// 按钮1
34         jb1.setBounds(20, 40, 100, 30);
35         jb1.setText("获得题目");
36         jb1.addActionListener(new ActionListener() {
37 
38             public void actionPerformed(ActionEvent e) {
39 
40                 int beichushu = (int) (Math.random() * 100 + 1);
41                 int chushu = (int) (Math.random() * beichushu + 1);
42                 String js1 = "" + beichushu;
43                 String js2 = "" + chushu;
44                 ChufaDiv.division = beichushu / chushu;
45                 jt.setText(js1 + "➗" + js2 + "=" + "");
46             }
47         });
48         add(jt);
49         add(jb1);
50     }
51 
52     void bank2() {// 确认答案按钮区
53         JTextField jt2 = new JTextField();// 文本框2
54         jt2.setBounds(120, 75, 200, 30);
55         JButton jb2 = new JButton();// 按钮1
56         jb2.setBounds(20, 75, 100, 30);
57         jb2.setText("确认答案");
58         jb2.addActionListener(new ActionListener() {
59             public void actionPerformed(ActionEvent e) {
60                 int div = ChufaDiv.division;
61                 String inputDiv = jt2.getText();
62                 int inputdiv = Integer.parseInt(inputDiv);
63                 System.out.println("division=" + div);
64                 System.out.println("inputDiv=" + inputDiv);
65                 if (inputdiv == div) {
66 
67                     JOptionPane.showMessageDialog(null, "答案正确", "消息对话框", JOptionPane.INFORMATION_MESSAGE);
68                 } 
69                 else {
70                     JOptionPane.showMessageDialog(null, "答案错误", "消息对话框", JOptionPane.WARNING_MESSAGE);
71                 }
72             }
73         });
74         add(jt2);
75         add(jb2);
76     }
77 }

除法

结果：

后续会更新完善四则运算功能~~

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原文地址：https://www.cnblogs.com/2640335699qqcom/p/15345354.html