Thread: Updating JSpinner question

Hello everyone. I have a running program that uses 4 JSpinners first one include complete day,month,year and the three spinners are day, month, year. the program now when I play with the bottom three spinners, it updates the first spinner, the one that contains complete date. What I want to do is when I change day or month or year in the first spinner, I want the program to update the correct spinner

Here is the code I have so far.
Thanks in advance

 import javax.swing.*;
   import javax.swing.event.*;
   import java.util.*;
   import java.text.*;
   import java.awt.*;
 
   public class Spinner extends JFrame {
   // Create four spinners for date, day, month, and year
      private JSpinner jspDate = new JSpinner(new SpinnerDateModel());
      private JSpinner jspDay = new JSpinner(new SpinnerNumberModel(1, 1, 31, 1));
      private String[] monthNames = new DateFormatSymbols().getMonths();
      private JSpinner jspMonth = new JSpinner (new SpinnerListModel(Arrays.asList(monthNames).subList(0, 12)));
      private JSpinner spinnerYear = new JSpinner(new SpinnerNumberModel(2004, 1, 3000, 1));
 
      public Spinner() 
      {
      // Group labels
         JPanel panel1 = new JPanel();
         panel1.setLayout(new GridLayout(4, 1));
         panel1.add(new JLabel("Date"));
         panel1.add(new JLabel("Day"));
         panel1.add(new JLabel("Month"));
         panel1.add(new JLabel("Year"));
 
      // Group spinners
         JPanel panel2 = new JPanel();
         panel2.setLayout(new GridLayout(4, 1));
         panel2.add(jspDate);
         panel2.add(jspDay);
         panel2.add(jspMonth);
         panel2.add(spinnerYear);
 
      // Add spinner and label to the UI
         add(panel1, BorderLayout.WEST);
         add(panel2, BorderLayout.CENTER);
 
      // Set editor for date
         JSpinner.DateEditor dateEditor = new JSpinner.DateEditor(jspDate, "MMM dd, yyyy");
         jspDate.setEditor(dateEditor);
 
      // Set editor for year
         JSpinner.NumberEditor yearEditor = new JSpinner.NumberEditor(spinnerYear, "####");
         spinnerYear.setEditor(yearEditor);
 
      // Update date to synchronize with the day, month, and year
         updateDate();
 
      // Register and create a listener for jspDay
         jspDay.addChangeListener(
               new ChangeListener() {
                  public void stateChanged(javax.swing.event.ChangeEvent e) {
                     updateDate();
                  }
               });
 
      // Register and create a listener for jspMonth
         jspMonth.addChangeListener(
               new ChangeListener() {
                  public void stateChanged(javax.swing.event.ChangeEvent e) {
                     updateDate();
                  }
               });
 
      // Register and create a listener for spinnerYear
         spinnerYear.addChangeListener(
               new ChangeListener() {
                  public void stateChanged(javax.swing.event.ChangeEvent e) {
                     updateDate();
                  }
               });
      }
 
   /** Update date spinner to synchronize with the other spinners */
      private void updateDate() 
      {
      // Get current month and year in int
         int month = ((SpinnerListModel)jspMonth.getModel()).getList().indexOf(jspMonth.getValue());
         int year = ((Integer)spinnerYear.getValue()).intValue();
 
      // Set a new maximum number of days for the new month and year
         SpinnerNumberModel numberModel = (SpinnerNumberModel)jspDay.getModel();
         numberModel.setMaximum(new Integer(maxDaysInMonth(year, month)));
 
      // Set a new current day if it exceeds the maximum
         if (((Integer)(numberModel.getValue())).intValue() > maxDaysInMonth(year, month))
            numberModel.setValue(new Integer(maxDaysInMonth(year, month)));
 
      // Get the current day
         int day = ((Integer)jspDay.getValue()).intValue();
 
      // Set a new date in the date spinner
         jspDate.setValue(new GregorianCalendar(year, month, day).getTime());
			System.out.println(">> " + jspDate.getValue());
			//System.out.println(">> " + jspDate.getValue("year"));
			//jspDay.setValue(jspDate.getValue());
      }
 
 
   /** Return the maximum number of days in a month. For example,
    Feb 2004 has 29 days. */
      private int maxDaysInMonth(int year, int month) 
      {
         Calendar calendar = new GregorianCalendar(year, month, 1);
         return calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
      }
 
      public static void main(String[] args) 
      {
         Spinner frame = new Spinner();
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      // Display the frame
         frame.setSize(400,200);
         frame.setVisible(true);
      }
   }