JScrollBarをJSliderとして使用する

int step = 5;
int extent = 20;
int min = 0;
int max = extent * 10; // 200
int value = 50;
JScrollBar scrollbar = new JScrollBar(
  JScrollBar.HORIZONTAL, value, extent, min, max + extent);
scrollbar.setUnitIncrement(step);
scrollbar.getModel().addChangeListener(new ChangeListener() {
  @Override public void stateChanged(ChangeEvent e) {
    BoundedRangeModel m = (BoundedRangeModel) e.getSource();
    spinner.setValue(m.getValue());
  }
});
JSpinner spinner = new JSpinner(new SpinnerNumberModel(value, min, max, step));