how to get focus to an internal frame in html page

How to get focus to a internal jframe inside a jframe when w开发者_如何学Ce show our applet on browser and applet start focus automatically go to browser arrow keys do page up and down no my specifiec order that i add to my frame listener?

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Try this code:

protected void createFrame() {

    MyInternalFrame frame = new MyInternalFrame();
    frame.setVisible(true);
    desktop.add(frame);
    try {
        frame.setSelected(true);
    } catch (java.beans.PropertyVetoException e) {}
}