public static final String measureUpPane = ("..//fxmlFiles//MeasureUP.fxml"); public static final String measureDnPane = ("..//fxmlFiles//MeasureDN.fxml"); public static final String optionsWindowPane = ("..//fxmlFiles//OptionsWindow.fxml"); public static final String measureEmpty = ("..//fxmlFiles//MeasureEmpty.fxml"); public static final String mainStackPane = ("fxmlFiles/MainStackPane.fxml");