Getting the TIME value from JSpinner

Question

I'm quite new to java programming and I have created a java program that enables user to input the time (HH:mm:ss format) using a JSpinner on a JFrame. It was made through customizing the JSPinner's code (shown below). What I'm trying to do is to get the value (Time) that was input by the user and convert it to string displayed on a JLabel. I've tried using the state change event but for integer models only.

JSPinner's customized code

Date date = new Date();
SpinnerDateModel sm = new SpinnerDateModel(date, null, null, Calendar.HOUR_OF_DAY);

time_spinner = new javax.swing.JSpinner(sm);

JSpinner.DateEditor te = new JSpinner.DateEditor(time_spinner, "HH:mm:ss");
time_spinner.setEditor(te);

getContentPane().add(time_spinner, new org.netbeans.lib.awtextra.AbsoluteConstraints(120, 50, 120, 30));

Answer 1

In the context of your question, JSpinner#getValue will return a Date object. You need to take the Date object and format it in what ever manner is required for you (for example HH:mm:ss)

This is demonstrate at How to use Spinners, which would be worth your time reading

import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JSpinner;
import javax.swing.SpinnerDateModel;
import javax.swing.SwingUtilities;

public class Test1 {

    public static void main(String[] args) {
        new Test1();
    }

    public Test1() {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                JFrame frame = new JFrame();
                frame.add(new TestPane());
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        private JSpinner time_spinner;

        public TestPane() {
            setLayout(new GridBagLayout());
            GridBagConstraints gbc = new GridBagConstraints();
            gbc.gridwidth = GridBagConstraints.REMAINDER;
            Date date = new Date();
            SpinnerDateModel sm = new SpinnerDateModel(date, null, null, Calendar.HOUR_OF_DAY);

            time_spinner = new javax.swing.JSpinner(sm);

            JSpinner.DateEditor te = new JSpinner.DateEditor(time_spinner, "HH:mm:ss");
            time_spinner.setEditor(te);

            add(time_spinner, gbc);

            JButton btn = new JButton("Show me the time");
            btn.addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    Object value = time_spinner.getValue();
                    if (value instanceof Date) {
                        Date date = (Date)value;
                        SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
                        String time = format.format(date);

                        JOptionPane.showMessageDialog(TestPane.this, "The time is " + time);
                    }
                }
            });
            add(btn, gbc);
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(200, 200);
        }
    }

}