In this JavaFX source code example, we will see how to use the JavaFX DropShadow effect with an example. 

DropShadow is a high-level effect that renders a shadow behind the content with the specified color, radius and offset.

JavaFX DropShadow Example

The example creates a shadow around a rectangle.

package sample;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.effect.DropShadow;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

public class Main extends Application {

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

    @Override
    public void start(Stage stage) {

        initUI(stage);
    }

    private void initUI(Stage stage) {

        StackPane root = new StackPane();

        Rectangle rect = new Rectangle(0, 0, 100, 100);
        rect.setFill(Color.RED);

        DropShadow ds = new DropShadow(15, Color.DARKGREEN);

        rect.setEffect(ds);

        root.getChildren().add(rect);

        Scene scene = new Scene(root, 250, 200, Color.WHITESMOKE);

        stage.setTitle("DropShadow");
        stage.setScene(scene);
        stage.show();
    }
}

Output: