import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.control.Tooltip;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;

public class TabPaneTooltips extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) throws Exception {

        BorderPane root = new BorderPane();

        TabPane tabPane = new TabPane();
        tabPane.setPrefSize(250, 250);

        for (int i = 0; i < 5; i++) {
            Tab tab = new Tab("Tab " + i);
            Tooltip tooltip = new Tooltip();
            tooltip.setText("This is a tooltip\nfor tab " + tab.getText());
            tab.setTooltip(tooltip);

            tabPane.getTabs().add(tab);
        }

        root.setCenter(tabPane);

        Scene scene = new Scene(root, 400, 300);
        stage.setScene(scene);
        stage.show();
    }
}