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JAVA JTable different editor in cells

The following code add different editor in cells. This program involes 2 JAVA file:

EachRowEditor.java and EachRowEditorExample.java

//Example modified from http://www.crionics.com/products/opensource/faq/swing_ex/JTableExamples2.html

/**
* @version 1.0 12/03/98
*/

/* (swing1.1.1) jfc#91 */

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;

/**
* each row TableCellEditor
*
* @version 1.1 09/09/99
* @author Nobuo Tamemasa
*/

public class EachRowEditor implements TableCellEditor {
protected Hashtable editors;
protected TableCellEditor editor, defaultEditor;
JTable table;

/**
* Constructs a EachRowEditor.
* create default editor
*
* @see TableCellEditor
* @see DefaultCellEditor
*/
public EachRowEditor(JTable table) {
this.table = table;
editors = new Hashtable();
defaultEditor = new DefaultCellEditor(new JTextField());
}

/**
* @param row table row
* @param editor table cell editor
*/
public void setEditorAt(int row, TableCellEditor editor) {
editors.put(new Integer(row),editor);
}

public Component getTableCellEditorComponent(JTable table,
Object value, boolean isSelected, int row, int column) {
//editor = (TableCellEditor)editors.get(new Integer(row));
//if (editor == null) {
// editor = defaultEditor;
//}
return editor.getTableCellEditorComponent(table,
value, isSelected, row, column);
}

public Object getCellEditorValue() {
return editor.getCellEditorValue();
}
public boolean stopCellEditing() {
return editor.stopCellEditing();
}
public void cancelCellEditing() {
editor.cancelCellEditing();
}
public boolean isCellEditable(EventObject anEvent) {
selectEditor((MouseEvent)anEvent);
return editor.isCellEditable(anEvent);
}
public void addCellEditorListener(CellEditorListener l) {
editor.addCellEditorListener(l);
}
public void removeCellEditorListener(CellEditorListener l) {
editor.removeCellEditorListener(l);
}
public boolean shouldSelectCell(EventObject anEvent) {
selectEditor((MouseEvent)anEvent);
return editor.shouldSelectCell(anEvent);
}

protected void selectEditor(MouseEvent e) {
int row;
if (e == null) {
row = table.getSelectionModel().getAnchorSelectionIndex();
} else {
row = table.rowAtPoint(e.getPoint());
}
editor = (TableCellEditor)editors.get(new Integer(row));
if (editor == null) {
editor = defaultEditor;
}
}
}