Listen for Column-Related Changes in a JTable in Java

import java.awt.BorderLayout;
// w  w  w.  ja  v  a2 s . c om
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.TableColumnModelEvent;
import javax.swing.event.TableColumnModelListener;

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

    Object rowData[][] = { { "Row1-Column1", "Row1-Column2", "Row1-Column3" },
        { "Row2-Column1", "Row2-Column2", "Row2-Column3" } };
    Object columnNames[] = { "Column One", "Column Two", "Column Three" };
    final JTable table = new JTable(rowData, columnNames);

    
    JScrollPane scrollPane = new JScrollPane(table);

    frame.add(scrollPane, BorderLayout.CENTER);
    frame.setSize(300, 150);
    frame.setVisible(true);
    

    table.getColumnModel().addColumnModelListener(new MyTableColumnModelListener(table));

  }
}
class MyTableColumnModelListener implements TableColumnModelListener {
  JTable table;
  public MyTableColumnModelListener(JTable table) {
    this.table = table;
  }

  public void columnAdded(TableColumnModelEvent e) {
    int fromIndex = e.getFromIndex();
    int toIndex = e.getToIndex();
    System.out.println(fromIndex);
    System.out.println(toIndex);
  }

  public void columnRemoved(TableColumnModelEvent e) {
    int fromIndex = e.getFromIndex();
    int toIndex = e.getToIndex();
    System.out.println(fromIndex);
    System.out.println(toIndex);
  }

  public void columnMoved(TableColumnModelEvent e) {
    int fromIndex = e.getFromIndex();
    int toIndex = e.getToIndex();
    System.out.println(fromIndex);
    System.out.println(toIndex);
  }

  public void columnMarginChanged(ChangeEvent e) {
    System.out.println(e);
    
  }

  public void columnSelectionChanged(ListSelectionEvent e) {
    System.out.println(e);
  }
}