JavaFX Layout Example

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Line;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

public class AbsoluteLayoutEx extends Application {

    public void start(Stage stage) {

        initUI(stage);
    }

    private void initUI(Stage stage) {

        Pane root = new Pane();
       
        Rectangle rect = new Rectangle(25, 25, 50, 50);
        rect.setFill(Color.CADETBLUE);
       
        Line line = new Line(90, 40, 230, 40);
        line.setStroke(Color.RED);
       
        Circle circle = new Circle(130, 130, 30);
        circle.setFill(Color.CHOCOLATE);
       
        root.getChildren().addAll(rect, line, circle);

        Scene scene = new Scene(root, 250, 220, Color.WHITESMOKE);

        stage.setTitle("Absolute layout");
        stage.setScene(scene);
        stage.show();
    }

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