Control keyboard input into javafx TextField

Question

I want to control the input into a Javafx TextField so that I can allow only Numeric input, and so that if the max characters are exceeded, then no change will be made to th

Answer 1

I simply set the 'On Key Typed' event to run this small procedure:

    @FXML public void processKeyEvent(KeyEvent ev) {
    String c = ev.getCharacter();
    if("1234567890".contains(c)) {}
    else {
        ev.consume();
    }
}

It works like a champ!