Write an JavaFX application that displays a circle. The application should contain two buttons; larger and smaller. This buttons will increase/decrease the radius of the circle. The application should also contain drop down box which allows you to change the color of the circle, this drop down box should contain at least four colors. The application should contain a textbox which will place a label on the circle

import java.util.Random;

import javafx.application.Application; import javafx.collections.FXCollections; import javafx.collections.ObservableList;

import javafx.event.ActionEvent;

import javafx.event.EventHandler;

import javafx.scene.Scene;

import javafx.scene.control.Button; import javafx.scene.control.ComboBox;

import javafx.scene.layout.Pane;

import javafx.scene.layout.VBox;

import javafx.scene.paint.Color;

import javafx.scene.shape.Circle;

import javafx.stage.Stage;

public class BigBall extends Application {

Circle circle;

Button b1, b2;

Pane pane;

Scene scene;

Stage stage;

public EventHandler getActionHandler(){

return new EventHandler(){

@Override

public void handle(ActionEvent arg0) {

double radius;

Random generator = new Random(); //Create random integers or doubles ...etc

pane.getChildren().remove(circle); //Remove previous circle

pane.getChildren().add(circle); //add a new circle

radius = 20; //Radius of the circle is 20 u can change it if want

int X = generator.nextInt(460); //Generate random x location within the scene

int Y = generator.nextInt(260); //Generate random y location within the scene

circle.setCenterX(X);

circle.setCenterY(Y); //Set circle x, y coordinates

circle.setRadius(radius); //set radius

circle.setFill(Color.RED); //set color to fill

}

};

}

@Override

public void start(Stage stage) {

stage.setTitle("Drawing a Circle at random location");

circle = new Circle(); //Create just a empty circle

b1 = new Button("Larger"); //Creates button 1

b1.setOnAction(getActionHandler()); //Add event listener for button1

b2 = new Button("Smaller"); // creates button2

b2.setOnAction(getActionHandler()); //Add event listener for button2

VBox box = new VBox(2);

box.getChildren().addAll(b1,b2); comboBox.setOnAction(e -> { if(comboBox.getValue() == "Red") { circle.setFill(Color.RED); } else if(comboBox.getValue() == "Blue") { circle.setFill(Color.BLUE); } else if(comboBox.getValue() == "Green") { circle.setFill(Color.GREEN); } else if(comboBox.getValue() == "Yellow") { circle.setFill(Color.YELLOW); } });

ComboBox comboBox = new ComboBox(colors);

comboBox.setOnAction(e -> { if(comboBox.equals("Red")) { circle.setFill(Color.RED); } else if(comboBox.equals("Blue")) { circle.setFill(Color.BLUE); } else if(comboBox.equals("Green")) { circle.setFill(Color.GREEN); } else if(comboBox.equals("Yellow")) { circle.setFill(Color.YELLOW); } }); ObservableList colors = FXCollections.observableArrayList("Red", "Blue", "Green", "Yellow");

pane = new Pane();

pane.getChildren().addAll(box);

scene = new Scene(pane, 500, 300);

stage.setScene(scene);

stage.show();

}

public static void main(String[] args) {

launch(args);

}

}