Modify the following Polygon GUI App in java to have the program change the shape of the polygon depending on the dimensions, for example, it should display a circle when sides and radius are $100.$package silvestri;

import java.awt.Color;

import javafx.application.Application;

import javafx.geometry.Pos;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.control.Label;

import javafx.scene.control.TextField;

import javafx.scene.layout.BorderPane;

import javafx.scene.layout.HBox;

import javafx.scene.layout.StackPane;

import javafx.scene.layout.VBox;

import javafx.stage.Stage;

import shapes.RegularPolygon;

import shapes.Circle;

import shapes.Rectangle;

import shapes.Shape;

import shapes.Triangle;

import silvestri.UpdateablePolygon;

public class PolygonApp extends Application $\{$

private TextField sidesField;

private TextField radiusField;

private TextField areaField;

private TextField perimeterField;

private UpdateablePolygon polygon;

@Override

public void start$($Stage primaryStage$)\{$

$//$ Create input fields and labels

Label sidesLabel $=$ new Label$("$Sides:$")$;

Label radiusLabel $=$ new Label$("$Radius:$")$;

sidesField $=$ createClearableTextField$()$;

radiusField $=$ createClearableTextField$()$;

Label areaLabel $=$ new Label$("$Area:$")$;

Label perimeterLabel $=$ new Label$("$Perimeter:$")$;

areaField $=$ createReadonlyTextField$()$;

perimeterField $=$ createReadonlyTextField$()$;

$//$ Create a button

Button calculateButton $=$ new Button$("$Calculate$")$;

calculateButton.setOnAction$($event $->$ calculatePolygon$())$;

$//$ Create an HBox for input fields and button

HBox inputBox $=$ new HBox$(10)$;

inputBox.getChildren$().$addAll$($sidesLabel$,$ sidesField, radiusLabel, radiusField, calculateButton$)$;

$//$ Create a BorderPane to hold input fields, output fields, and the polygon

BorderPane root $=$ new BorderPane$()$;

root.setTop$($inputBox$)$;

root.setLeft$($areaLabel$)$;

root.setLeft$($areaField$)$;

root.setRight$($perimeterLabel$)$;

root.setRight$($perimeterField$)$;

polygon $=$ new UpdateablePolygon$()$;

polygon.setSides$(6)$;

root.setCenter$($polygon$)$;

$//$ Configure the scene and stage

Scene scene $=$ new Scene$($root$,600,400)$;

primaryStage.setTitle$("$Polygon Statistics Solver $-$ Tony Silvestri"$)$;

primaryStage.setScene$($scene$)$;

primaryStage.show$()$;

$//$ Set the initial polygon sides and radius

sidesField.setText$("6")$;

radiusField.setText$("100")$;

calculatePolygon$()$;

$\}$

private TextField createClearableTextField$()\{$

TextField textField $=$ new TextField$()$;

textField.setPrefWidth$(100)$;

textField.setOnMousePressed$($event $->$ textField.clear$())$;

return textField;

$\}$

private TextField createReadonlyTextField$()\{$

TextField textField $=$ new TextField$()$;

textField.setPrefWidth$(100)$;

textField.setEditable$($false$)$;

textField.setFocusTraversable$($false$)$;

textField.setMouseTransparent$($true$)$;

return textField;

$\}$

private void calculatePolygon$()\{$

int sides $=$ Integer.parseInt$($sidesField$.$getText$())$;

double circumRadius $=$ Double.parseDouble$($radiusField$.$getText$())$;

RegularPolygon regularPolygon $=$ new RegularPolygon$($sides$,$ circumRadius, "Black", false$)$;

areaField.setText$($String$.$format$("\%\mathrm{.}2$f$",$ regularPolygon.getArea$()))$;

perimeterField.setText$($String$.$format$("\%\mathrm{.}2$f$",$ regularPolygon.getPerimeter$()))$;

$\}$

public static void main$($String$[]$ args$)\{$

launch$($args$)$;

$\}$

$\}$Develop a GUI that looks exactly like the following:

Polygon Statistics Solver $-$ Tony Silvestri

Sides

Area

Perimeter

To create the polygon in the GUI, include the attached UpdateablePolygon.java file into your project. Put the file in a

package called silvestri.

Add the classes you used in the first part of this assignment and put them into a shapes package. $($The test file source

files need not be included.$)$

When the calculate button is clicked, have your gui use your RegularPolygon class to determine the area and perimeter

from the specified sides and radius textfields. Also use the methods provided by the UpdateablePolygon to draw a cool

polygon.