I did not know that you *only* look at the "Almanac" to see what
objects\classes java supported. Yes you will not find the JSpinner in
the Almanac. I built mine working from the JDK API Specs.

You should get into a habit of referencing it, life will be much easer.
You will have to look at the API Specs for Spinner\SpinnerNumberModel(s)
to changed a few things but here is some code to get you going..

    private JSpinner            spinnerCompareSize;
    private SpinnerNumberModel  spinnerModelCompareSize;

    public JSpinner buildSpinner(String toolTip)
    {
        Dimension spinnerDimension = new Dimension(35, 25);
        spinnerCompareSize = new JSpinner();
        spinnerCompareSize.setToolTipText(toolTip);
        spinnerCompareSize.putClientProperty("is3DEnabled", Boolean.TRUE);
        spinnerCompareSize.setMinimumSize(spinnerDimension);
        spinnerCompareSize.setPreferredSize(spinnerDimension);
        spinnerCompareSize.setMaximumSize(spinnerDimension);
        spinnerModelCompareSize = new SpinnerNumberModel(12, 0, 100, 1);
        //
        // Disable keyboard edits in the spinner
        JFormattedTextField tf =
            ((JSpinner.DefaultEditor)
spinnerCompareSize.getEditor()).getTextField();
        tf.setEditable(false);
        spinnerCompareSize.setModel(spinnerModelCompareSize);
        spinnerCompareSize.addChangeListener(new ChangeListener() {
            public void stateChanged(ChangeEvent evt) {
                JSpinner spinner = (JSpinner)evt.getSource();
                quoteCompareSize =
(Integer)((JSpinner)evt.getSource()).getValue();
            }
        });
        return spinnerCompareSize;
    }