How to set a tooltip on a JavaFX Button?

Question

How can I set a title or a text that appears above a button when I hover it with the mouse?

Answer 1

The Tooltip class is what you are looking for.

Example for a simple Tooltip

Button button = new Button("Hover Me");
button.setTooltip(new Tooltip("Tooltip for Button"));

You can also customize your Tooltips: CSS Reference for Tooltip.

Example for a styled Tooltip

Button button = new Button();
button.setText("Hover Me!");
Tooltip tt = new Tooltip();
tt.setText("Text on Hover");
tt.setStyle("-fx-font: normal bold 4 Langdon; "
    + "-fx-base: #AE3522; "
    + "-fx-text-fill: orange;");

button.setTooltip(tt);