//package com.oracle.javafx;

import javafx.application.Application; 
    import javafx.scene.Scene; 
    import javafx.scene.control.Button; 
    import javafx.scene.control.Label; 
    import javafx.scene.layout.VBox; 
    import javafx.stage.Stage; 

    public class AlwaysOnTopDemo extends Application { 
        @Override 
        public void start(Stage stage) { 
            VBox vbox = new VBox(); 
            Scene scene = new Scene(vbox); 
            stage.setScene(scene); 
            Button button1 = new Button("New Tool Window"); 
            button1.setOnAction((e)-> { 
                Stage toolStage = new Stage(); 
                Scene toolScene = new Scene(new Label("Am I on top?"),300, 250); 
                toolStage.setScene(toolScene); 
                toolStage.initOwner(stage); 
                toolStage.setAlwaysOnTop(true); 
                toolStage.show(); 
            }); 
            Button button2 = new Button("Close"); 
            button2.setOnAction((e)->System.exit(0)); 
            vbox.getChildren().addAll(button1,button2); 
            stage.show(); 
            stage.setFullScreen(true); 
        } 

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