Cellrenderer til jTable

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/* Her er noget jeg sad og boksede med i går - håber du kan bruge det! */

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

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);
      }
    });
  }
}