check的jtable

JTable table = new JTable();
    TableColumn col = table.getColumn(columnName);
    col.setCellEditor(new DefaultCellEditor(new JCheckBox()));
    col.setCellRenderer(new MyCheckBoxRenderer());
   //下面是个Renderer类
  public class MyCheckBoxRenderer
    extends JCheckBox
    implements TableCellRenderer {

  public MyCheckBoxRenderer() {}

  public Component getTableCellRendererComponent(JTable table, Object value,
                         boolean isSelected,
                         boolean hasFocus,
                         int row, int column) {
    if (isSelected) {
      setForeground(table.getSelectionForeground());
      setBackground(table.getSelectionBackground());
    }
    else {
      setForeground(table.getForeground());
      setBackground(table.getBackground());
    }
    if (value == null || !(value instanceof Boolean)) {
      value = new Boolean(false);
    }
    setSelected( ( (Boolean) value).booleanValue());
    return this;
  }
}