如何使用JTextArea向JTabbedPane添加新选项卡

import javax.swing.*;
import java.awt.*;

public class MainFrame extends JFrame {
    private JTabbedPane tabbedPane;

    public MainFrame() {
        // 创建主窗口
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setSize(500, 500);
        setLocationRelativeTo(null);

        // 创建JTabbedPane对象
        tabbedPane = new JTabbedPane();

        // 创建第一个选项卡
        JPanel panel1 = new JPanel();
        panel1.setLayout(new BorderLayout());

        JTextArea textArea = new JTextArea();
        JScrollPane scrollPane = new JScrollPane(textArea);

        panel1.add(scrollPane, BorderLayout.CENTER);

        tabbedPane.addTab("选项卡1", panel1);

        // 创建第二个选项卡
        JPanel panel2 = new JPanel();
        panel2.setLayout(new BorderLayout());

        JTextArea textArea2 = new JTextArea();
        JScrollPane scrollPane2 = new JScrollPane(textArea2);

        panel2.add(scrollPane2, BorderLayout.CENTER);

        tabbedPane.addTab("选项卡2", panel2);

        // 将JTabbedPane添加到主窗口中
        add(tabbedPane);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            MainFrame frame = new MainFrame();
            frame.setVisible(true);
        });
    }
}