JTable et bouton radio

Merci bien voilà ce que sa donne:
Code:
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import java.awt.Component;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
 
import javax.swing.ButtonGroup;
import javax.swing.DefaultCellEditor;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.UIDefaults;
import javax.swing.UIManager;
import javax.swing.event.TableModelEvent;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
 
class RadioButtonRenderer implements TableCellRenderer {
  public Component getTableCellRendererComponent(JTable table, Object value,
      boolean isSelected, boolean hasFocus, int row, int column) {
    if (value == null)
      return null;
    return (Component) value;
  }
}
 
class RadioButtonEditor extends DefaultCellEditor implements ItemListener {
  private JRadioButton button;
 
  public RadioButtonEditor(JCheckBox checkBox) {
    super(checkBox);
  }
 
  public Component getTableCellEditorComponent(JTable table, Object value,
      boolean isSelected, int row, int column) {
    if (value == null)
      return null;
    button = (JRadioButton) value;
    button.addItemListener(this);
    return (Component) value;
  }
 
  public Object getCellEditorValue() {
    button.removeItemListener(this);
    return button;
  }
 
  public void itemStateChanged(ItemEvent e) {
    super.fireEditingStopped();
  }
}
 
public class JRadioButtonTableExample extends JFrame {
 
  public JRadioButtonTableExample() {
    super("JRadioButtonTable Example");
    UIDefaults ui = UIManager.getLookAndFeel().getDefaults();
    UIManager.put("RadioButton.focus", ui.getColor("control"));
 
    DefaultTableModel dm = new DefaultTableModel();
    dm.setDataVector(new Object[][] { { "Group 1", new JRadioButton("A") },
        { "Group 1", new JRadioButton("B") },
        { "Group 1", new JRadioButton("C") },
        { "Group 2", new JRadioButton("a") },
        { "Group 2", new JRadioButton("b") } }, new Object[] {
        "String", "JRadioButton" });
 
    JTable table = new JTable(dm) {
      public void tableChanged(TableModelEvent e) {
        super.tableChanged(e);
        repaint();
      }
    };
    ButtonGroup group1 = new ButtonGroup();
    group1.add((JRadioButton) dm.getValueAt(0, 1));
    group1.add((JRadioButton) dm.getValueAt(1, 1));
    group1.add((JRadioButton) dm.getValueAt(2, 1));
    ButtonGroup group2 = new ButtonGroup();
    group2.add((JRadioButton) dm.getValueAt(3, 1));
    group2.add((JRadioButton) dm.getValueAt(4, 1));
    table.getColumn("JRadioButton").setCellRenderer(
        new RadioButtonRenderer());
    table.getColumn("JRadioButton").setCellEditor(
        new RadioButtonEditor(new JCheckBox()));
    JScrollPane scroll = new JScrollPane(table);
    getContentPane().add(scroll);
    setSize(200, 140);
    setVisible(true);
  }
 
  public static void main(String[] args) {
    JRadioButtonTableExample frame = new JRadioButtonTableExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
  }
}