JTableはカラムを非表示にした後、どのように表示を復元しますか?

次に、表の列を非表示にして表示するツールクラスをまとめます.

package com.swing.table;

import javax.swing.JTable;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;

public class TableUtil3
{
    
    private TableUtil3()
    {
        throw new Error("Don't let anyone instantiate this class.");
    }
    
    /***
     * hide specified column
     * 
     * @param table
     * @param column
     */
    public static void hideTableColumn(JTable table, int column)
    {
        TableColumnModel columns = table.getColumnModel();
        TableColumn column_id_data = columns.getColumn(column);
        column_id_data.setMaxWidth(0);
        column_id_data.setPreferredWidth(0);
        column_id_data.setMinWidth(0);
        
        TableColumn column_id_header = table.getTableHeader().getColumnModel()
                .getColumn(column);
        column_id_header.setMaxWidth(0);
        column_id_header.setPreferredWidth(0);
        column_id_header.setMinWidth(0);
    }
    /***
     * show specified column
     * 
     * @param table
     * @param column
     * @param width
     */
    public static void showTableColumn(JTable table, int column)
    {
    	int width=40;
        TableColumnModel columns = table.getColumnModel();
        TableColumn column_id_data = columns.getColumn(column);
        
        column_id_data.setMaxWidth(width+100);
        column_id_data.setPreferredWidth(width);
        column_id_data.setMinWidth(width);
       
//        column_id_data.setResizable(true);
        TableColumn column_id_header = table.getTableHeader().getColumnModel()
                .getColumn(column);
        column_id_header.setMaxWidth(width+100);
        column_id_header.setPreferredWidth(width);
        column_id_header.setMinWidth(width);
//        column_id_header.setResizable(true);
    }
}

上記のツールクラスを呼び出すコードは次のとおりです.
//show id column
JButton showIDBtn = new JButton("show id");
showIDBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
TableUtil3.showTableColumn(table, 6);
}
});
button02Pane.add(showIDBtn);
 
//hide id column
JButton hideIDBtn = new JButton("hide id");
hideIDBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
TableUtil3.hideTableColumn(table, 6);
}
});
button02Pane.add(hideIDBtn);