每日总结-23.11.22

package kousuanti;


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

public class ArithmeticProgram extends JFrame {
    private JPanel contentPanel;
    private JLabel[] questionLabels;
    private JTextField[] answerFields;
    private JButton regenerateButton;
    private JButton submitButton;
    private JLabel resultLabel;

    public ArithmeticProgram() {
        contentPanel = new JPanel();
        contentPanel.setLayout(new GridLayout(10, 2)); // 一行两个元素，题目和作答区域

        questionLabels = new JLabel[10];
        answerFields = new JTextField[10];

        for (int i = 0; i < 10; i++) {
            int num1 = generateRandomNumber();
            int num2 = generateRandomNumber();
            char operator = generateRandomOperator();
            int result = calculateResult(num1, num2, operator);

            JLabel questionLabel = new JLabel("第" + (i+1) + "题: " + num1 + " " + operator + " " + num2 + " = ");
            questionLabels[i] = questionLabel;
            JTextField answerField = new JTextField();
            answerFields[i] = answerField;
            contentPanel.add(questionLabel);
            contentPanel.add(answerField);
        }

        regenerateButton = new JButton("重置");
        submitButton = new JButton("提交");

        regenerateButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                regenerateQuestions();
            }
        });

        submitButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                checkAnswers();
            }
        });

        resultLabel = new JLabel();

        JPanel buttonPanel = new JPanel();
        buttonPanel.add(regenerateButton);
        buttonPanel.add(submitButton);

        add(contentPanel, BorderLayout.CENTER);
        add(resultLabel, BorderLayout.SOUTH);
        add(buttonPanel, BorderLayout.NORTH);

        setTitle("口算");
        setSize(800, 600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }

    private int generateRandomNumber() {
        Random random = new Random();
        return random.nextInt(60) + 1; // 生成1到10的随机数
    }

    private char generateRandomOperator() {
        Random random = new Random();
        int op = random.nextInt(2);
        return (op == 0) ? '+' : '-';
    }

    private int calculateResult(int num1, int num2, char operator) {
        if (operator == '+') {
            return num1 + num2;
        } else {
            return num1 - num2;
        }
    }

    private void regenerateQuestions() {
        for (int i = 0; i < 10; i++) {
            int num1 = generateRandomNumber();
            int num2 = generateRandomNumber();
            char operator = generateRandomOperator();
            questionLabels[i].setText("Question " + (i+1) + ": " + num1 + " " + operator + " " + num2 + " = ");
            answerFields[i].setText("");
        }
        resultLabel.setText("");
    }

    private void checkAnswers() {
        StringBuilder wrongAnswers = new StringBuilder();
        for (int i = 0; i < 10; i++) {
            String userAnswer = answerFields[i].getText().trim();
            int num1 = Integer.parseInt(questionLabels[i].getText().split("\\s+")[1]);
            char operator = questionLabels[i].getText().charAt(questionLabels[i].getText().length()-5);
            int num2 = Integer.parseInt(questionLabels[i].getText().split("\\s+")[3]);
            int correctResult = calculateResult(num1, num2, operator);
            if (!userAnswer.isEmpty() && Integer.parseInt(userAnswer) != correctResult) {
                wrongAnswers.append("Question ").append(i + 1).append(", ");
            }
        }
        if (wrongAnswers.length() == 0) {
            resultLabel.setText("All answers are correct!");
        } else {
            resultLabel.setText("Wrong answers: " + wrongAnswers.toString());
        }
    }

    public static void main(String[] args) {
        new ArithmeticProgram();
    }
}