import javax.swing.ButtonModel;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class Main {
public static void main(String[] args) {
JButton button = new JButton("Test");
ButtonModel model = button.getModel();
model.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
System.out.println("Armed: " + model.isArmed() + " Enabled: "
+ model.isEnabled() + " Pressed: " + model.isPressed());
}
});
JOptionPane.showMessageDialog(null, button);
}
}