JcomboBox master, change the values of all jComboBoxes on a Jatable

Question

Hello Guys,
I have one doubt, I'm using a single JcomboBox that must change all the Jcomboboxes of a jtable to the same value of the master jcombobox.
I have the attached code, but It doesn´t work, I dont know where could be the issue :S, could any body help me?
The master jComboBox is named: combo1 and this need to change all the comboboxes named: comboBox on the jtable called tbl.
You can find the code here:
http://www.javaclub.com.mx/code/ComboBoxTable.java
http://www.javaclub.com.mx/code/ComboBoxTable.txt
package comboBox;
import javax.swing.*;
import javax.swing.table.*;
import java.awt.Component;
import java.awt.event.*;
public class ComboBoxTable {
     private static JComboBox combo1;
public static void main(String[] args) {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
} catch (Exception evt) {}
JFrame f = new JFrame("Combo Box Table");
final JTable tbl = new JTable(new ComboBoxTableModel());
// Create the combo box editor
JComboBox comboBox = new JComboBox(ComboBoxTableModel.getValidStates());
comboBox.setEditable(true);
DefaultCellEditor editor = new DefaultCellEditor(comboBox);
// Assign the editor to the second column
TableColumnModel tcm = tbl.getColumnModel();
tcm.getColumn(1).setCellEditor(editor);
// Set column widths
tcm.getColumn(0).setPreferredWidth(200);
tcm.getColumn(1).setPreferredWidth(100);
// Set row heighht
tbl.setRowHeight(20);
tbl.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
tbl.setPreferredScrollableViewportSize(tbl.getPreferredSize());
     combo1=new JComboBox();
combo1.setBounds(350,10,80,20);
combo1.addItem("On order");
combo1.addItem("In stock");
combo1.addItem("Out of print");
combo1.setVisible(true);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
     TableColumn col = tbl.getColumnModel().getColumn(1);
     col.setCellRenderer(new MyComboBoxRenderer(ComboBoxTableModel.getValidStates()));
combo1.addActionListener(actionListener);
f.add(combo1);
f.getContentPane().add(new JScrollPane(tbl), "Center");
f.pack();
f.setSize(500, 300);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
System.exit(0);
f.setVisible(true);
class ComboBoxTableModel extends AbstractTableModel {
// Implementation of TableModel interface
public int getRowCount() {
return data.length;
public int getColumnCount() {
return COLUMN_COUNT;
public Object getValueAt(int row, int column) {
return data[row][column];
public Class getColumnClass(int column) {
return (data[0][column]).getClass();
public String getColumnName(int column) {
return columnNames[column];
public boolean isCellEditable(int row, int column) {
return column == 1;
public void setValueAt(Object value, int row, int column) {
if (isValidValue(value)) {
data[row][column] = value;
fireTableRowsUpdated(row, row);
// Extra public methods
public static String[] getValidStates() {
return validStates;
// Protected methods
protected boolean isValidValue(Object value) {
if (value instanceof String) {
String sValue = (String)value;
for (int i = 0; i < validStates.length; i++) {
if (sValue.equals(validStates)) {
return true;
return false;
protected static final int COLUMN_COUNT = 2;
protected static final String[] validStates = {
"On order", "In stock", "Out of print"
protected static final String[] validStatesMaster = {
     "On order", "In stock", "Out of print"
protected Object[][] data = new Object[][] {
{ "Core Java Volume 1", validStates[0] },
{ "Core Java Volume 2", validStates[0] },
{ "Core Web Programming", validStates[0] },
{ "Core Visual Basic 5", validStates[0] },
{ "Core Java Foundation Classes", validStates[0] }
protected static final String[] columnNames = {
"Book Name", "Status"
class MyComboBoxRenderer extends JComboBox implements TableCellRenderer {
     public MyComboBoxRenderer(String[] items) {
     super(items);
     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
     boolean hasFocus, int row, int column) {
          System.out.println("in");
     if (isSelected) {
     setForeground(table.getSelectionForeground());
     super.setBackground(table.getSelectionBackground());
     } else {
     setForeground(table.getForeground());
     setBackground(table.getBackground());
     setSelectedItem(value);
     return this;
Many thanks in advance!!!

Answer 1

Hi,
the tables are only fictitious.
any_table can have
any_col1 number,
any_col2 varchar2(10)
any_col3 number
my_tab can have
my_col1 number,
my_col2 varchar2(10)
my_col3 number
In the program-code the structure of the collection-type is the same of the table in that I want to write the data.
Thanks
Michael