问Java Swing有没有好的、免费的日期和时间选择器？

EN

JSpinner timeSpinner = new JSpinner( new SpinnerDateModel() );
JSpinner.DateEditor timeEditor = new JSpinner.DateEditor(timeSpinner, "HH:mm:ss");
timeSpinner.setEditor(timeEditor);
timeSpinner.setValue(new Date()); // will only show the current time

public static JPanel buildDatePanel(String label, Date value) {
JPanel datePanel = new JPanel();

JDateChooser dateChooser = new JDateChooser();
if (value != null) {
    dateChooser.setDate(value);
}
for (Component comp : dateChooser.getComponents()) {
    if (comp instanceof JTextField) {
    ((JTextField) comp).setColumns(50);
    ((JTextField) comp).setEditable(false);
    }
}

datePanel.add(dateChooser);

SpinnerModel model = new SpinnerDateModel();
JSpinner timeSpinner = new JSpinner(model);
JComponent editor = new JSpinner.DateEditor(timeSpinner, "HH:mm:ss");
timeSpinner.setEditor(editor);
if(value != null) {
    timeSpinner.setValue(value);
}

datePanel.add(timeSpinner);

return datePanel;
}