1. SceneBuilder中添加
SceneBuilder -> Miscellaneous -> Tooltip,将其拖到对应控件里便可。
2. 通过code添加
Tooltip tooltip = new Tooltip("This is tooltip"); tooltip.setStyle("-fx-font: normal bold 16 Langdon; " + "-fx-base: #AE3522; " + "-fx-text-fill: orange;"); addRangeBtn.setTooltip(tooltip);