团队：蒲顺利 张志流
package com.operation;
import java.util.*;
public class Expression
{
private int a = (int)(Math.random() * Math.pow(10,2)-1);
private int b = (int)(Math.random() * Math.pow(10,2)-1);
private int op;
static int c;
int answer;
int answer1;
static Scanner in=new Scanner(System.in);
public int geta()
{
return a;
}
public void seta(int a)
{
this.a = a;
}
public int getb()
{
return b;
}
public void setb(int b)
{
this.b = b;
}
public int expressionmin()
{
answer = a-b;
return answer;
}
public int expressionchen()
{
answer = a*b;
return answer;
}
public int expressionchu()
{
b = (b == 0 ? b = 1 +(int)(Math.random() * Math.pow(10,2)-1):b);//閹烘帡娅庨梽銈嗙《鐞氼偊娅庨弫棰佽礋0閻ㄥ嫭鍎忛崘锟�
answer = a/b;
return answer;
}
public static void main(String[] args){
int answer;
Expression expression = new Expression();
}
}
package com.operation;
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Font;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import com.operation.frame;
import java.awt.EventQueue;
public class frame {
private JFrame frame;//图形界面，简单的window窗口
private JTextField textField;//文本框
private JTextField textField_1;
private JTextField textField_2;
private JTextField textField_3;
private JTextField textField_4;
private JTextField textField_5;
frame f;
int a;
int b;
char []op={'+','-','*','/'};
String Sa;
String Sb;
int result;
static int i = (int) (Math.random() * 4);//大于0小于4的随机数
Expression expression = new Expression();
private JButton btnNewButton_1;//按钮
/**
* Launch the application.
*/
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
frame window = new frame();
window.frame.setVisible(true);
System.out.print(i);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
* @throws Yichang
*/
public frame() throws Yichang {
initialize();
}
/**
* Initialize the contents of the frame.
*/
JPanel panel = new JPanel();
frame.getContentPane().add(panel, BorderLayout.CENTER);
panel.setLayout(null);
JLabel lblNewLabel = new JLabel("\u56DB\u5219\u8FD0\u7B97\u5668");//四则运算器
lblNewLabel.setFont(new Font("微软雅黑", Font.PLAIN, 30));
lblNewLabel.setBounds(141, 0, 208, 57);
panel.add(lblNewLabel);
textField = new JTextField();//用来放随机数的第一个
textField.setEditable(false);
textField.setHorizontalAlignment(SwingConstants.CENTER);//设置文本时是水平对齐方式
textField.setFont(new Font("微软雅黑", Font.PLAIN, 30));
textField.setBounds(56, 82, 88, 45);
panel.add(textField);//将组件插入到面板
textField.setColumns(10);
textField_1 = new JTextField();//用来存放随机数的第二个
textField_1.setEditable(false);
textField_1.setHorizontalAlignment(SwingConstants.CENTER);
textField_1.setFont(new Font("微软雅黑", Font.PLAIN, 30));//设置字体格式
textField_1.setColumns(10);//设置文本框长度
textField_1.setBounds(220, 82, 88, 45);
panel.add(textField_1);
textField_3 = new JTextField();//写入自己的答案
textField_3.setHorizontalAlignment(SwingConstants.CENTER);
textField_3.setFont(new Font("微软雅黑", Font.PLAIN, 30));
textField_3.setColumns(10);
textField_3.setBounds(371, 82, 88, 45);
panel.add(textField_3);
JButton btnNewButton = new JButton("\u505A\u5B8C\u4E86");//做完了
btnNewButton.setFont(new Font("微软雅黑", Font.PLAIN, 30));
btnNewButton.setBounds(188, 156, 131, 45);
panel.add(btnNewButton);
JLabel lblNewLabel_1 = new JLabel("\u8BA1\u7B97\u7ED3\u679C");//计算结果
lblNewLabel_1.setFont(new Font("微软雅黑", Font.PLAIN, 30));
lblNewLabel_1.setBounds(56, 222, 131, 35);
panel.add(lblNewLabel_1);
textField_4 = new JTextField();
textField_4.setFont(new Font("微软雅黑", Font.PLAIN, 20));
textField_4.setColumns(10);
textField_4.setBounds(188, 222, 161, 35);
panel.add(textField_4);
textField_5 = new JTextField();//运算符
textField_5.setHorizontalAlignment(SwingConstants.CENTER);
textField_5.setEditable(false);
textField_5.setFont(new Font("微软雅黑", Font.PLAIN, 30));
textField_5.setText(String.valueOf(op[i]));
textField_5.setColumns(10);
textField_5.setBounds(159, 82, 44, 45);
panel.add(textField_5);
a = expression.geta();
Sa = String.valueOf(a);
textField.setText(Sa);
b = expression.getb();
Sb = String.valueOf(b);
textField_1.setText(Sb);
btnNewButton_1 = new JButton("\u518D\u6765 ");//u518D\u6765 再来的意思
btnNewButton_1.addActionListener(new ActionListener() {//让按钮具备关闭窗口的功能
public void actionPerformed(ActionEvent e) {
try {
f = new frame();
} catch (Yichang e1) {
// TODO 自动生成catch块
e1.printStackTrace();
}
frame.dispose();
f.frame.setVisible(true);//显示窗体
}
});
btnNewButton_1.setFont(new Font("微软雅黑", Font.PLAIN, 30));
btnNewButton_1.setBounds(366, 222, 107, 36);
panel.add(btnNewButton_1);
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0){
int n3=Integer.valueOf(textField_3.getText().toString()); // 获得textField中输入的值
switch(op[i])
{
case '+':result = expression.expressionadd();break;
case '-':result = expression.expressionmin();break;
case '*':result = expression.expressionchen();break;
case '/':result = expression.expressionchu();break;
}
if(textField_3.getText()!="")
{
if(result==n3)
{
textField_4.setText("正确");
}
else
{
textField_4.setText("错误！答案为："+result);
}
}
try {
if(textField_3.getText()=="")
throw new Yichang("不能为空");
} catch (Yichang e) {
// TODO 自动生成的catch块
e.printStackTrace();
}
/*try {
if(n3<0)
throw new Yichang("不可能是负数!");
} catch (Yichang e) {
// TODO 自动生成的catch块
e.printStackTrace();
}*/
}
});
}
}
package com.operation;
import java.util.*;
public class Input {
public int a;
static Scanner in=new Scanner(System.in);
public void seta(int intput){
a = intput;
}
public Input()
{
try{
a = in.nextInt();
}
catch(InputMismatchException e)
{
System.err.println("杈撳叆");
}
}
public int getinput()
{
return a;
}
}
package com.operation;
class Yichang extends Exception
{
public Yichang(String msg)
{
super(msg);
}
}