如何以编程方式模拟Java FX中的箭头键按下

我想让我的JFX应用程序模拟箭头按键（当它们在TextField中注册时），但我无法弄清楚如何发送除字符串或字节之外的任何内容。

I want to make my JFX application simulate arrow key presses (when they are registered in a TextField), but I can't figure out how to send anything other than Strings or bytes.

我想象的是这样的：

static EventHandler<KeyEvent> KEY() {
    E = new EventHandler<KeyEvent>() {
        @Override
        public void handle(KeyEvent ke) {
            if (ke.getCode().equals(KeyCode.UP)) {
                try {
                    //someObject.SimulateKeyPress(KeyCode.UP);

                    //OR

                    //coolObject.SendKey((char)KEY_UPKEY));
                } catch (Exception ex) {
                    //Teleport goats
                }
            }
        }
    };

    return E;
}