使用JavaSwing要求：显示5道算式，并允许用户填入结果，单击检查按钮后，显示分数。请直接给出完整的代码

### 回答1：
在这里给出一个使用 Java Swing 实现的代码示例。请注意，这只是一个简单的示例，您可能需要根据自己的需要进行修改和扩展。

首先，我们需要导入所需的包：

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

然后，我们需要定义一个类来实现我们的程序。这里我们假设类名为 `MathQuiz`，并在其中定义了五道算式，以及两个文本框和一个检查按钮。

public class MathQuiz extends JFrame implements ActionListener {
  // 定义五道算式
  private String[] questions = {
    "3 + 5 = ",
    "2 * 8 = ",
    "10 / 2 = ",
    "4 - 1 = ",
    "6 + 3 = "
  };

  // 定义五道算式的正确答案
  private int[] answers = {8, 16, 5, 3, 9};

  // 定义五个文本框
  private JTextField[] answerFields = new JTextField[5];

  // 定义检查按钮
  private JButton checkButton = new JButton("检查");

  public MathQuiz() {
    // 设置窗口的标题
    setTitle("数学测验");

    // 设置窗口的大小
    setSize(400, 300);

    // 设置窗口的布局
    setLayout(new GridLayout(6, 2));

    // 将五道算式和五个文本框添加到窗口中
    for (int i = 0; i < 5; i++) {
      add(new JLabel(questions[i]));
      answerFields[i] = new JTextField();
      add(answerFields[i]);
    }

    // 将检查按钮添加到窗口中
     

### 回答2：
下面是一个使用Java Swing实现的程序代码示例，可以实现显示5道算式并允许用户填入结果。用户填入结果后，点击“检查”按钮，程序会计算答案，并显示分数。

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class EquationCheckApp extends JFrame {
private JLabel[] equations;
private JTextField[] resultFields;
private JLabel scoreLabel;

public EquationCheckApp() {
setTitle("算式检查");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(new GridLayout(7, 1));

equations = new JLabel[5];
resultFields = new JTextField[5];

for (int i = 0; i < 5; i++) {
equations[i] = new JLabel(generateEquation());
add(equations[i]);

resultFields[i] = new JTextField();
add(resultFields[i]);
}

JButton checkButton = new JButton("检查");
add(checkButton);
scoreLabel = new JLabel("");
add(scoreLabel);

checkButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int correctCount = 0;
for (int i = 0; i < 5; i++) {
String result = resultFields[i].getText().trim();
if (result.equals(calculateResult(i))) {
correctCount++;
}
}
double score = (double) correctCount / 5 * 100;
scoreLabel.setText("得分: " + score + "%");
}
});

pack();
setVisible(true);
}

public String generateEquation() {
int num1 = (int) (Math.random() * 10);
int num2 = (int) (Math.random() * 10);
int operator = (int) (Math.random() * 4); // 0: +, 1: -, 2: *, 3: /
String equation = "";

switch (operator) {
case 0:
equation = num1 + " + " + num2 + " = ";
break;
case 1:
equation = num1 + " - " + num2 + " = ";
break;
case 2:
equation = num1 + " * " + num2 + " = ";
break;
case 3:
equation = num1 + " / " + num2 + " = ";
break;
}

return equation;
}

public String calculateResult(int equationIndex) {
String equation = equations[equationIndex].getText();
String[] parts = equation.split(" ");
int num1 = Integer.parseInt(parts[0]);
int num2 = Integer.parseInt(parts[2]);
int operatorIndex = equation.indexOf(parts[1]);
char operator = equation.charAt(operatorIndex);

int result = 0;
switch (operator) {
case '+':
result = num1 + num2;
break;
case '-':
result = num1 - num2;
break;
case '*':
result = num1 * num2;
break;
case '/':
result = num1 / num2;
break;
}

return String.valueOf(result);
}

public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new EquationCheckApp();
}
});
}
}

希望这个程序能满足你的需求！如果有其他问题，请随时提问。  

### 回答3：
以下是一个使用Java Swing实现的程序，实现了显示5道算式，允许用户填入结果，并在点击检查按钮后显示分数的功能：

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class MathQuiz extends JFrame {
private JLabel[] labels;
private JTextField[] inputs;
private JButton checkButton;
private JLabel resultLabel;

public MathQuiz() {
setTitle("数学测验");
setSize(400, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(new GridLayout(7, 2));

labels = new JLabel[5];
inputs = new JTextField[5];

for (int i = 0; i < 5; i++) {
labels[i] = new JLabel(generateMathQuestion());
inputs[i] = new JTextField();
add(labels[i]);
add(inputs[i]);
}

checkButton = new JButton("检查");
checkButton.addActionListener(new CheckButtonListener());
add(checkButton);

resultLabel = new JLabel();
add(resultLabel);
}

private String generateMathQuestion() {
int operand1 = (int) (Math.random() * 10);
int operand2 = (int) (Math.random() * 10);
int operator = (int) (Math.random() * 4);

String operatorSymbol;
int result;

switch (operator) {
case 0:
operatorSymbol = "+";
result = operand1 + operand2;
break;
case 1:
operatorSymbol = "-";
result = operand1 - operand2;
break;
case 2:
operatorSymbol = "*";
result = operand1 * operand2;
break;
case 3:
operatorSymbol = "/";
result = operand1 / operand2;
break;
default:
operatorSymbol = "";
result = 0;
break;
}

return operand1 + " " + operatorSymbol + " " + operand2 + " = ";
}

private class CheckButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
int correctAnswers = 0;

for (int i = 0; i < 5; i++) {
String userInput = inputs[i].getText().trim();
int userResult;

try {
userResult = Integer.parseInt(userInput);
} catch (NumberFormatException ex) {
JOptionPane.showMessageDialog(MathQuiz.this, "请在第 " + (i + 1) + " 题中填入一个整数！");
return;
}

int expectedAnswer = Integer.parseInt(labels[i].getText().substring(labels[i].getText().indexOf("=") + 1).trim());
if (userResult == expectedAnswer) {
correctAnswers++;
}
}

double score = (double) correctAnswers / 5 * 100;
resultLabel.setText("分数: " + score + "分");
}
}

public static void main(String[] args) {
MathQuiz mathQuiz = new MathQuiz();
mathQuiz.setVisible(true);
}
}

该程序创建了一个名为MathQuiz的类，继承了JFrame，并在构造函数中实现了程序的界面和逻辑。在构造函数中，我们使用了GridLayout布局管理器，将界面划分为7行2列的网格。我们使用了JLabel和JTextField来显示算式和接收用户的输入，使用了JButton来触发检查操作，并使用了JLabel来显示分数。通过为JButton添加一个ActionListener，我们可以在按钮被点击时执行检查操作，在检查操作中，我们遍历所有的题目和用户输入，计算出正确的题目数量，并根据这个数量计算分数，最后在JLabel中显示出来。最后，我们在main方法中创建MathQuiz的实例并设置为可见。