如何动态更改我的TableModel的列模型

import javax.swing.table.AbstractTableModel;
import javax.swing.JTable;

public class MyTableModel extends AbstractTableModel {
    private Object[][] data; // 存储表格数据的二维数组
    private String[] columnNames; // 存储列名的数组

    public MyTableModel(Object[][] data, String[] columnNames) {
        this.data = data;
        this.columnNames = columnNames;
    }

    @Override
    public int getColumnCount() {
        return columnNames.length;
    }

    @Override
    public int getRowCount() {
        return data.length;
    }

    @Override
    public Object getValueAt(int row, int col) {
        return data[row][col];
    }

    // 动态更改列模型的方法
    public void updateColumnModel(String[] newColumnNames) {
        columnNames = newColumnNames;
        fireTableStructureChanged(); // 通知表格更新列模型
    }

    public static void main(String[] args) {
        Object[][] data = {{"John", 25, "USA"}, {"Alice", 30, "Canada"}, {"Bob", 35, "UK"}};
        String[] columnNames = {"Name", "Age", "Country"};

        MyTableModel model = new MyTableModel(data, columnNames);
        JTable table = new JTable(model);

        // 动态更改列模型
        String[] newColumnNames = {"Name", "Country"};
        model.updateColumnModel(newColumnNames);
    }
}