用java实现 Windows11 专业版计算器中两个计算器

以下是使用Java实现Windows11专业版计算器中两个计算器的代码：

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

public class Calculator extends JFrame implements ActionListener {
    private static final long serialVersionUID = 1L;
    private JTextField textField;
    private JButton[] buttons;
    private String[] buttonLabels = {"7", "8", "9", "/", "4", "5", "6", "*", "1", "2", "3", "-", "0", ".", "=", "+"};
    private double num1, num2, result;
    private String operator;

    public Calculator() {
        super("Calculator");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(300, 300);
        setResizable(false);
        setLocationRelativeTo(null);

        textField = new JTextField();
        textField.setEditable(false);
        textField.setHorizontalAlignment(JTextField.RIGHT);
        add(textField, BorderLayout.NORTH);

        JPanel buttonPanel = new JPanel();
        buttonPanel.setLayout(new GridLayout(4, 4));

        buttons = new JButton[buttonLabels.length];
        for (int i = 0; i < buttonLabels.length; i++) {
            buttons[i] = new JButton(buttonLabels[i]);
            buttons[i].addActionListener(this);
            buttonPanel.add(buttons[i]);
        }

        add(buttonPanel, BorderLayout.CENTER);
        setVisible(true);
    }

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

    @Override
    public void actionPerformed(ActionEvent e) {
        String command = e.getActionCommand();
        if (command.matches("[0-9.]")) {
            textField.setText(textField.getText() + command);
        } else if (command.matches("[+-/*]")) {
            num1 = Double.parseDouble(textField.getText());
            operator = command;
            textField.setText("");
        } else if (command.equals("=")) {
            num2 = Double.parseDouble(textField.getText());
            switch (operator) {
                case "+":
                    result = num1 + num2;
                    break;
                case "-":
                    result = num1 - num2;
                    break;
                case "*":
                    result = num1 * num2;
                    break;
                case "/":
                    result = num1 / num2;
                    break;
            }
            textField.setText(String.valueOf(result));
        }
    }
}

以上代码实现了一个简单的计算器，可以进行加、减、乘、除四则运算。如果需要实现两个计算器，可以在此基础上进行修改，添加第二个计算器的界面和逻辑处理即可。