The Java Developers Almanac 1.4

e793. Listening for Changes to the Value in a JSpinner Component

    // Create a nummber spinner
    JSpinner spinner = new JSpinner();
    
    // Add the listener
    spinner.addChangeListener(new SpinnerListener());
    
    // Changing the value programmatically also fires an event
    spinner.setValue(new Integer(100));
    
    public class SpinnerListener implements ChangeListener {
        public void stateChanged(ChangeEvent evt) {
            JSpinner spinner = (JSpinner)evt.getSource();
    
            // Get the new value
            Object value = spinner.getValue();
        }
    }

Related Examples

e786. Creating a JSpinner Component
e787. Creating an Hour JSpinner Component
e788. Disabling Keyboard Editing in a JSpinner Component
e789. Limiting the Values in a Number JSpinner Component
e790. Setting the Margin Space on a JSpinner Component
e791. Customizing the Editor in a JSpinner Component
e792. Creating a SpinnerListModel That Loops Through Its Values

See also: Actions    JButton    JCheckBox    JComboBox    JDesktop and JInternalFrame    JFrame, JWindow, JDialog    JLabel    JList    JProgressBar    JRadioButton    JScrollPane    JSlider    JSplitPane    JTabbedPane    JToolBar    Keystrokes and Input Maps    Layout    Look and Feel    Menus    Progress Monitor    The Screen    Tool Tips    UI Default Values

© 2002 Addison-Wesley.