Event handling order

Question

When dealing with nested panels, I was curious if there is any specified order that event handlers are called.
The idea here is that if the applet or the group isn't enabled, then the button wouldn't recieve the mouse down.
So which mouseDown is called first?
public class App extends Applet {
    public void Init() {
        ToggleButtonGroup b = new ToggleButtonGroup();
        add(b);
    public boolean mouseDown(Event evt, int x, int y) {
        if(applet not Enabled) {
            ignore all mouse downs in this
            return true;
        else
            return false;
class ToggleButtonGroup extends Panel {
    public void Init() {
        ToggleButton b1 = new ToggleButton();
        add(b1);
        ToggleButton b2 = new ToggleButton();
        add(b2);
    public boolean mouseDown(Event evt, int x, int y) {
        if(ToggleButtons not enabled) {
            ignore all mouse downs in this
            return true;
        else
            return false;
class ToggleButton extends Panel {
    public boolean mouseDown(Event evt, int x, int y) {
        if(within bounds of button) {
            change state
            return true;
        else
            return false;

Answer 1

Correction: From the origin of the event, it is then spread to all registered listeners. The order of those listeners is defined by which you added first