JavaFX | StackPane Class

StackPane class is a part of JavaFX. StackPane class lays out its children in form of a stack. The new node is placed on the top of the previous node in a StackPane. StackPane class inherits Pane Class.

Constructors of the class:

1. StackPane(): Creates a new empty StackPane.
2. StackPane(Node… c): Creates a new StackPne with specified nodes.

Commonly Used Methods:

Below programs illustrate the use of StackPane Class:

1. Java Program to create a StackPane, add circle, label, rectangle and add it to the stage: In this program we are creating a Label named label, a Rectangle named rectangle and a Circle named circle. Then set the font of the StackPane using the setFont() function. Now set the fill of the rectangle and circle using the setFill() function. We will then create a StackPane named stack_pane and add rectangle, circle and label. Create a scene and add the stack_pane to the scene. Add this scene to the stage and call the show() function to display the final results.

   
   

   
   
   

   // Java Program to create a StackPane, // add circle, label, rectangle // and add it to the stage import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.*; import javafx.scene.layout.*; import javafx.stage.Stage; import javafx.event.ActionEvent; import javafx.scene.paint.*; import javafx.scene.canvas.*; import javafx.scene.text.*; import javafx.scene.Group; import javafx.scene.shape.*;    public class StackPane_1 extends Application {        // launch the application     public void start(Stage stage)     {            try {                // set title for the stage             stage.setTitle("StackPane");                // create a label             Label label = new Label("this is StackPane example");                // set Font for label             label.setFont(new Font(30));                // create a circle             Circle circle = new Circle(100, 100, 70);                // set fill for  the circle             circle.setFill(Color.RED);                // create Rectangle             Rectangle rectangle = new Rectangle(100, 100, 180, 160);                // set fill for rectangle             rectangle.setFill(Color.BLUE);                // create a stack pane             StackPane stack_pane = new StackPane(rectangle, circle, label);                // create a scene             Scene scene = new Scene(stack_pane, 400, 300);                // set the scene             stage.setScene(scene);                stage.show();         }            catch (Exception e) {                System.out.println(e.getMessage());         }     }        // Main Method     public static void main(String args[])     {            // launch the application         launch(args);     } }

   Output:

   

2. Java Program to create a StackPane, add the circle, label, rectangle and then set the alignment of the StackPane and add it to the stage: In this program we are creating a Label named label, a Rectangle named rectangle and a Circle named circle. Then set the font of the StackPane using the setFont() function. Set fill of the rectangle and circle using the setFill() function. Now create a StackPane named stack_pane and add rectangle, circle, and label. Set the alignment of the stack_pane using setAlignment() function. Create a scene and add the stack_pane to the scene. Finally add this scene to the stage and call the show() function to display the results.

   
   

   
   
   

   // Java Program to create a StackPane,  // add the circle, label, rectangle and // then set the alignment of the StackPane // and add it to the stage import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.*; import javafx.scene.layout.*; import javafx.stage.Stage; import javafx.geometry.*; import javafx.scene.paint.*; import javafx.scene.canvas.*; import javafx.scene.text.*; import javafx.scene.Group; import javafx.scene.shape.*;    public class StackPane_2 extends Application {        // launch the application     public void start(Stage stage)     {            try {                // set title for the stage             stage.setTitle("StackPane");                // create a label             Label label = new Label("this is StackPane example");                // set Font for label             label.setFont(new Font(30));                // create a circle             Circle circle = new Circle(100, 100, 70);                // set fill for  the circle             circle.setFill(Color.RED);                // create Rectangle             Rectangle rectangle = new Rectangle(100, 100, 180, 160);                // set fill for rectangle             rectangle.setFill(Color.BLUE);                // create a stack pane             StackPane stack_pane = new StackPane(rectangle, circle, label);                // set alignement for the stack pane             stack_pane.setAlignment(Pos.TOP_CENTER);                // create a scene             Scene scene = new Scene(stack_pane, 400, 300);                // set the scene             stage.setScene(scene);                stage.show();         }            catch (Exception e) {                System.out.println(e.getMessage());         }     }        // Main Method     public static void main(String args[])     {            // launch the application         launch(args);     } }

   Output:

   

Note: The above programs might not run in an online IDE please use an offline compiler.

Reference: https://docs.oracle.com/javase/8/javafx/api/javafx/scene/layout/StackPane.html