Trying to give the focus at my JComboBox

Question

Hey does somebody knows what i'm doing wrong,
i have a JFrame with a JTextField and a JComboBox, i want to give the focus on startup to the JComboBox but the form gives it to my JTextField, here is my code to ask the focus for my JComboBox
keuzeBox.addComponentListener(new ComponentAdapter(){
public void ComponentShown(ComponentEvent ex){
((JComboBox)ex.getSource()).requestFocusInWindow();
what am i doing wrong?

Answer 1

I'm not sure if componentShown is applicable to JFrame class (as a lightweight component). The event seems to not be fired.
Try this, as you mentioned you are displaying a JFrame, prefer to use a WindowFocusListener.
        frame.addWindowFocusListener(new WindowFocusListener() {
            public void windowGainedFocus(WindowEvent e) {
                keuzeBox.requestFocus();
            public void windowLostFocus(WindowEvent e) {
        });