import java.io$.*$;import java.net.$*$;import java.util.Scanner;import javafx.application.$*$;import javafx.geometry.Pos;import javafx.scene.Scene;import javafx.scene.chart.BarChart;import javafx.scene.chart.CategoryAxis;import javafx.scene.chart.NumberAxis;import javafx.scene.chart.XYChart;import javafx.scene.control.$*$;import javafx.scene.layout.GridPane;import javafx.scene.paint.Color;import javafx.stage.Stage;import javax.net.ssl$.$HttpsURLConnection;public class Project$226$ extends Application $\{$ @Override public void start$($Stage primaryStage$)\{//$ create a Label for the first URL with text $("$Enter URL $1")$; Label L$1=$ new Label$("$Enter URL $1$: $")$; $//$ create Label for the second URL with text $("$Enter URL $2")$; Label L$2=$ new Label$("$Enter URL $2$: $")$; $//$ create a Text field for entering the first URL TextField text$1=$ new TextField$()$; $//$ create Text field for entering the second URL TextField text$2=$ new TextField$()$; $//$ create a button for comparing. Button CompareButton $=$ new Button$("$Compare$")$; $//$create a button for exit the system when the user finishes from getting the chart Button ExitButton $=$ new Button$("$ Exit System $")$; $//$ Attache an event handler to the ExitButton. $//$so When clicked, it exits the system $($closes the application$).$ ExitButton.setOnAction$($e $->\{$ System.exit$(0)$; $\})$; $//$Attaches an event handler to the CompareButton. When clicked, it checks if both URL fields are not empty. $//$If they are, it shows an error message using Alert CompareButton.setOnAction$($e $->\{$ try $\{$ if $($text$1.$getText$().$trim$().$length$()==0||$ text$2.$getText$().$trim$().$length$()==0)\{$ Alert alert $=$ new Alert$($Alert$.$AlertType.ERROR, "Please be sure that $"+"$

the First or the Second URL $"+"$

are not Empty", ButtonType.OK$)$; alert.showAndWait$()$; return; $\}$ else $\{//$ Calls the isValidURL method to check if the entered URLs are valid $//$ If not, it shows an error message stating that enter valid URLs if $(!$isValidURL$($text$1.$getText$())||!$isValidURL$($text$2.$getText$()))\{$ Alert alert $=$ new Alert$($Alert$.$AlertType.ERROR, "Please enter valid URLs", ButtonType.OK$)$; alert.showAndWait$()$; return; $\}//$ Handles the logic when the CompareButton is clicked. $//$ Create a connection with the first URL. HttpsURLConnection urlConnection$1=($HttpsURLConnection$)($new URL$($text$1.$getText$())).$openConnection$()$; urlConnection$1.$setRequestMethod$("$GET$")$; $//$ Check the HTTP response code if $($urlConnection$1.$getResponseCode$()==$ HttpsURLConnection.HTTP$\_$OK$)\{//$ Read data from the First URL site try $($BufferedReader br $=$ new BufferedReader$($ new InputStreamReader$($urlConnection$1.$getInputStream$()))$; PrintWriter pw $=$ new PrintWriter$($new File$("$f$1.$txt$")))\{$ String str; while $(($str $=$ br$.$readLine$())!=$ null$)\{$ pw$.$println$($str$)$; $\}\}\}$ else $\{//$ Display an error message to the user Alert alert $=$ new Alert$($Alert$.$AlertType.ERROR, $"$HTTP response code: $"+$ urlConnection$1.$getResponseCode$()+"$ for URL: $"+$ text$1.$getText$(),$ ButtonType.OK$)$; alert.showAndWait$()$; return; $//$ Exit the method if an error occurs $\}//$ Create a connection with the second URL. HttpsURLConnection urlConnection$2=($HttpsURLConnection$)($new URL$($text$2.$getText$())).$openConnection$()$; urlConnection$2.$setRequestMethod$("$GET$")$; $//$ Check the HTTP response code if $($urlConnection$2.$getResponseCode$()==$ HttpsURLConnection.HTTP$\_$OK$)\{//$ Read data from the Second URL site try $($BufferedReader br $=$ new BufferedReader$($ new InputStreamReader$($urlConnection$2.$getInputStream$()))$; PrintWriter pw $=$ new PrintWriter$($new File$("$f$2.$txt$")))\{$ String str; while $(($str $=$ br$.$readLine$())!=$ null$)\{$ pw$.$println$($str$)$; $\}\}\}$ else $\{//$ Display an error message to the user Alert alert $=$ new Alert$($Alert$.$AlertType.ERROR, $"$HTTP response code: $"+$ urlConnection$2.$getResponseCode$()+"$ for URL: $"+$ text$2.$getText$(),$ ButtonType.OK$)$; alert.showAndWait$()$; return; $//$ Exit the method if an error occurs $\}\}\}$ catch $($MalformedURLException ex$)\{//$ Display an alert to the user Alert alert $=$ new Alert$($Alert$.$AlertType.ERROR, "Invalid URL entered: $"+$ ex$.$getMessage$(),$ ButtonType.OK$)$; alert.showAndWait$()$; return; $//$ Exit the method if an error occurs $\}$ catch $($IOException ex$)\{//$ Display an alert to the user Alert alert $=$ new Alert$($Alert$.$AlertType.ERROR, "IOException occurred: $"+$ ex$.$getMessage$(),$ ButtonType.OK$)$; alert.showAndWait$()$; return; $//$ Exit the method if an error occurs

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