OOP Program-19

(19) Write a program that displays the color of a circle as red when the mouse button is pressed and as blue when the mouse button is released.

Program Code:

 import javafx.application.Application;

import javafx.scene.Scene;

import javafx.scene.layout.StackPane;

import javafx.scene.paint.Color;

import javafx.scene.shape.Circle;

import javafx.stage.Stage;

public class OOP_19 extends Application 

{

  @Override

     public void start(Stage primaryStage) 

 {

         double width = 450;

         double height = 450;

         Circle c = new Circle(width / 2, height / 2, Math.min(width, height) / 10, Color.BLUE);

         c.setStroke(Color.WHITE);

         StackPane pane = new StackPane(c);

         primaryStage.setScene(new Scene(pane, width, height));

         pane.setOnMousePressed(e -> c.setFill(Color.RED));

         pane.setOnMouseReleased(e -> c.setFill(Color.BLUE));

         primaryStage.setTitle("Click circle..");

         primaryStage.show();

     }

    public static void main(String[] args) {

        Application.launch(args);

    }

}

Output:

1) Displays the color of a circle as blue when the mouse button is released.

2) Displays the color of a circle as red when the mouse button is pressed: