filterTextField.setOnKeyReleased(event -> {
if (event.getCode() == KeyCode.ENTER){
// the enter key is pressed
}
});
button1.setOnKeyPressed(new EventHandler<KeyEvent>() {
@Override
public void handle(KeyEvent k) {
if (k.getCode().equals(KeyCode.ENTER)) {
// the entry key is pressed
}
}
});