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Listening to JToggleButton Events with a ChangeListener

Listen to the changes for its armed, pressed, and selected properties import java.awt.BorderLayout; import javax.swing.AbstractButton; import javax.swing.ButtonModel; import javax.swing.JFrame; import javax.swing.JToggleButton; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class JToggleButtonChangeListener {   public static void main(String args[]) {     JFrame frame = new JFrame("Selecting Toggle");     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     JToggleButton toggleButton = new JToggleButton("Toggle Button");     ChangeListener changeListener = new ChangeListener() {       public void stateChanged(ChangeEvent changeEvent) {         AbstractButton abstractButton = (AbstractButton) changeEvent.getSource();         ButtonModel buttonModel = abstractButton.getModel();         boolean armed = buttonModel.isArmed();         boolean pressed = buttonModel.isPressed();         boolean selected = buttonModel.isSelected();         System.out.println("Changed: " + armed + "/" + pressed + "/" + selected);       }     };     // Attach Listeners     toggleButton.addChangeListener(changeListener);     frame.add(toggleButton, BorderLayout.NORTH);     frame.setSize(300, 125);     frame.setVisible(true);   } }