StackPane_Concentric1
  • Shape:: Circle
    Circle(double centerX, double centerY, double radius)
     Circle circle1 = new Circle(100,100,100);
     Circle circle2 = new Circle(60,60,60);
     Circle circle3 = new Circle(40,40,40);
    //circle1.setCenterX(100.0f);
    //circle1.setCenterY(100.0f);
    //circle1.setRadius(50.0f);
 
Code:

  package javafxtemplate1;

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.effect.Bloom;
import javafx.scene.effect.BoxBlur;
import javafx.scene.effect.DropShadow;
import javafx.scene.effect.Glow;
import javafx.scene.layout.HBox;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.stage.Stage;
//port ExternalClass1;


public class JavaFXTemplate1 extends Application {
   
     @Override
public void start(Stage primaryStage) {
 Button btn5 = new Button("Button 5");
 
StackPane spane = new StackPane();
//Circle(double centerX, double centerY, double radius)
 Circle circle1 = new Circle(100,100,100);
 Circle circle2 = new Circle(60,60,60);
 Circle circle3 = new Circle(40,40,40);
//circle1.setCenterX(100.0f);
//circle1.setCenterY(100.0f);
//circle1.setRadius(50.0f);
//
 circle1.setFill(Color.GREEN);
 circle2.setFill(Color.YELLOW);
 circle3.setFill(Color.CORAL);
 //spane.setLayoutX(250);spane.setLayoutY(250);
 // setMinSize width, height
 spane.setMinSize(90,50);
 spane.setStyle("-fx-padding: 10;" +"-fx-background-color: RED;"+
 "-fx-border-style: solid inside;" +
 "-fx-border-width: 4;" +
 "-fx-border-insets: 5;" +
 "-fx-border-radius: 5;" +
 "-fx-border-color: yellow;");
 spane.getChildren().addAll(circle1,circle2,circle3);
 HBox root = new HBox(btn5, spane);
 root.setAlignment(Pos.CENTER);
 root.setSpacing(20);
 root.setStyle("-fx-padding: 10;" +
 "-fx-border-style: solid inside;" +
 "-fx-border-width: 4;" +
 "-fx-border-insets: 5;" +
 "-fx-border-radius: 5;" +
 "-fx-border-color: blue;");
 Scene scene = new Scene(root, 400, 400);
 primaryStage.setScene(scene);
 primaryStage.setTitle("Applying Effects");
 primaryStage.show();
    }
     public static void main(String[] args) {
        launch(args);
    }
 
}


Runtime displays: