JRadioButton in JTable can't set default selection

Question

Guys, I need your help in here.
Basically, I want to have a JTable that will have a JRadioButton in one of its columns.
Furthermore, upon loading the table, I want the radiobutton on the first row is selected as default.
Below are my codes for the renderer, editor, and the part of the main code itself:
public class RadioButtonEditor extends AbstractCellEditor implements TableCellEditor
    private JRadioButton _button = new JRadioButton();
     * The constructor. Used to create new RadioButtonEditor object
     * @param checkBox - given JCheckBox
    public RadioButtonEditor()
        this._button.addActionListener(new ActionListener()
            public void actionPerformed(ActionEvent e)
                fireEditingStopped(); 
    @Override
    public Component getTableCellEditorComponent(JTable table, Object value,
            boolean isSelected, int row, int column)
        if(value == null)
            return null;
        this._button.setSelected(isSelected);
        return this._button;
    @Override
    public Object getCellEditorValue()
        return this._button.isSelected();
public class RadioButtonRenderer extends JRadioButton implements TableCellRenderer
    public Component getTableCellRendererComponent(JTable table, Object value,
            boolean isSelected, boolean hasFocus, int row, int column)
        System.out.println("MASUK: " + isSelected);
        if (value==null)
            System.out.println("1");
            return null;
        System.out.println("2");
        this.setSelected(isSelected);
        return this;
//Part of the main code
this._mainTable = null;
        DefaultTableModel dm = new DefaultTableModel();
        dm.setDataVector(this._myManager.getCreditListTableContents(this._dataStartIndex), this._myManager.getCreditListHeaderList());
        ButtonGroup buttonGroup = new ButtonGroup();
        for(int i=0; i<dm.getRowCount(); i++)
            JRadioButton temp = (JRadioButton)dm.getValueAt(i,0);
            buttonGroup.add(temp);
        this._mainTable = new JTable(dm){
            @Override
            public boolean isCellEditable(int row, int column)
                    if(column == 0)
                        return true;
                    else
                        return false;
            @Override
            public TableCellRenderer getCellRenderer(int row, int column)
                TableCellRenderer renderer = super.getCellRenderer(row,column);
                switch(column)
                    case 1: case 2: case 4: case 5: case 6: case 7: case 8:
                        ((JLabel)renderer).setHorizontalAlignment(SwingConstants.CENTER);
                        break;
                    case 3: case 9: case 10:
                        ((JLabel)renderer).setHorizontalAlignment(SwingConstants.LEFT);
                        break;
                return renderer;
        this._mainTable.getColumn(this._myManager.getCreditListHeaderList()[0]).setCellRenderer(new RadioButtonRenderer());
        this._mainTable.getColumn(this._myManager.getCreditListHeaderList()[0]).setCellEditor(new RadioButtonEditor());
        JRadioButton tempBttn = (JRadioButton)this._mainTable.getModel().getValueAt(0,0);
        tempBttn.getModel().setSelected(true);But still I can't make it.
Really need help guys.
Thnx a lot
-Peter

Answer 1

in this form works as I excepted
import java.awt.Component;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import javax.swing.plaf.UIResource;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
public class JRadioButtonTableTest {
    public static void main(String args[]) {
        DefaultTableModel model = new DefaultTableModel(new Object[][]{{Boolean.TRUE}, {Boolean.FALSE}, {Boolean.TRUE},
                    {Boolean.FALSE}, {Boolean.TRUE}, {Boolean.FALSE}, {Boolean.TRUE}}, new Object[]{"Boolean"}) {
            private static final long serialVersionUID = 1L;
            @Override
            public Class getColumnClass(int col) {
                return Boolean.class;
        JTable table = new JTable(model);
        table.setDefaultRenderer(Boolean.class, new BooleanRenderer());
        JFrame f = new JFrame("JRadio Button Renderer Test");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(new JScrollPane(table));
        f.setPreferredSize(new Dimension(100,200));
        f.setLocation(150, 200);
        f.pack();
        f.setVisible(true);
    static class BooleanRenderer extends JRadioButton implements TableCellRenderer, UIResource {
        private static final long serialVersionUID = 1L;
        private final Border noFocusBorder = new EmptyBorder(1, 1, 1, 1);
        BooleanRenderer() {
            super();
            setHorizontalAlignment(JLabel.CENTER);
            setBorderPainted(true);
        @Override
        public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
            if (isSelected) {
                setForeground(table.getSelectionForeground());
                super.setBackground(table.getSelectionBackground());
            } else {
                setForeground(table.getForeground());
                setBackground(table.getBackground());
            setSelected(value != null && ((Boolean) value).booleanValue());
            if (hasFocus) {
                setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
            } else {
                setBorder(noFocusBorder);
            return this;
    private JRadioButtonTableTest() {
}JTable is sensitive to EDT at all,
javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                table.setValueAt(Boolean.FALSE, row, column); // or TRUE
        });Edited by: mKorbel on 23.3.2011 9:22