单击JButton时，Java JTable会发生变化

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

public class TableExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Table Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 创建一个JTable并设置数据
        String[][] data = {{"1", "John", "Doe"}, {"2", "Jane", "Smith"}};
        String[] columnNames = {"ID", "First Name", "Last Name"};
        JTable table = new JTable(data, columnNames);

        // 创建一个JButton并添加点击事件处理程序
        JButton button = new JButton("Change Table Data");
        button.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // 在按钮点击时更新JTable的数据
                String[][] newData = {{"3", "Alice", "Johnson"}, {"4", "Bob", "Williams"}};
                table.setModel(new DefaultTableModel(newData, columnNames));
            }
        });

        // 创建一个包含JTable和JButton的面板
        JPanel panel = new JPanel();
        panel.add(new JScrollPane(table));
        panel.add(button);

        // 将面板添加到框架并显示
        frame.add(panel);
        frame.pack();
        frame.setVisible(true);
    }
}