JTable如何设置一行为单选框

要设置JTable的一行为单选框，可以通过自定义TableCellRenderer和TableCellEditor实现。具体步骤如下：

1. 自定义一个JRadioButtonRenderer，继承DefaultTableCellRenderer，并且重写getTableCellRendererComponent方法，将JRadioButton设置为组件的renderer，然后根据isSelected的值设置JRadioButton是否被选中。

public class JRadioButtonRenderer extends DefaultTableCellRenderer {
    private JRadioButton radioButton = new JRadioButton();

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        if (value != null) {
            radioButton.setSelected((Boolean) value);
        }
        return radioButton;
    }
}

2. 自定义一个JRadioButtonEditor，继承DefaultCellEditor，并且重写getTableCellEditorComponent方法，将JRadioButton设置为组件的editor，然后根据isSelected的值设置JRadioButton是否被选中。

public class JRadioButtonEditor extends DefaultCellEditor {
    private JRadioButton radioButton = new JRadioButton();

    public JRadioButtonEditor() {
        super(new JCheckBox());
    }

    @Override
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
        if (value != null) {
            radioButton.setSelected((Boolean) value);
        }
        return radioButton;
    }

    @Override
    public Object getCellEditorValue() {
        return radioButton.isSelected();
    }
}

3. 在JTable中设置renderer和editor，通过setCellRenderer和setCellEditor方法设置每一列的renderer和editor。

JTable table = new JTable();
table.setModel(tableModel);

JRadioButtonRenderer radioButtonRenderer = new JRadioButtonRenderer();
JRadioButtonEditor radioButtonEditor = new JRadioButtonEditor();

TableColumn column = table.getColumnModel().getColumn(0);
column.setCellRenderer(radioButtonRenderer);
column.setCellEditor(radioButtonEditor);

这样就可以实现JTable的一行为单选框的效果了。