如何在程序中动态添加TextFields？

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

public class DynamicTextFieldExample extends JFrame {
    private JPanel textFieldPanel;
    private JButton addButton;
    private int textFieldCount;

    public DynamicTextFieldExample() {
        textFieldPanel = new JPanel();
        addButton = new JButton("Add TextField");
        textFieldCount = 0;

        addButton.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                JTextField newTextField = new JTextField();
                newTextField.setPreferredSize(new Dimension(200, 30));
                textFieldPanel.add(newTextField);
                textFieldPanel.revalidate();
                textFieldPanel.repaint();
                textFieldCount++;
            }
        });

        setLayout(new BorderLayout());
        add(textFieldPanel, BorderLayout.CENTER);
        add(addButton, BorderLayout.SOUTH);

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        pack();
        setVisible(true);
    }

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