// need for using JavaFx import javafx.application.Application; import javafx.fxml.FXMLLoader; import javafx.geometry.*; import javafx.scene.Parent; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.geometry.Insets; 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.GridPane; import javafx.stage.Stage; public class Main extends Application { atOverride public void start(Stage primaryStage) throws Exception { primaryStage.setTitle("Tip Calculator"); //setting the title GridPane rootNode = new GridPane(); rootNode.setPadding(new Insets(15)); Scene myScene = new Scene(rootNode, 300, 200); //create a scene rootNode.add(new Label("Amount:"), 0, 0); TextField firstValue = new TextField(); rootNode.add(firstValue, 1, 0); rootNode.add(new Label("Toatal is:"), 0, 5); Button aButton = new Button("Calculate"); rootNode.add(aButton, 1, 2); GridPane.setHalignment(aButton, HPos.LEFT); //set the alignment TextField result = new TextField(); // label for result result.setEditable(false); rootNode.add(result, 1, 5); TextField tax = new TextField(); rootNode.add(new Label("Tax:"), 0, 3); // label for tax tax.setEditable(false); rootNode.add(tax,1,3); TextField tip = new TextField(); rootNode.add(new Label("Tip:"), 0, 4); //label for tip tip.setEditable(false); rootNode.add(tip,1,4); aButton.setOnAction(e ->{ Float value1 = Float.valueOf(firstValue.getText()); Float value2 =(value1*18)/100; //calculating tip Float value3 = (value1*7)/100; //calculating tax Float r = value1+value2+value3 ; // total of all three amounts tax.setText(value3.toString()); tip.setText(value2.toString()); result.setText(r.toString()); } } primaryStage.setScene(myScene); // add scene to stage primaryStage.show(); // show window public static void main(String[] args) { // launch the application launch(args); } }

Please check if there is any issue with my code and please upload a screenshot of result when it is working.

Please add proper comments as well.

// need for using JavaFx

import javafx.application.Application;

import javafx.fxml.FXMLLoader;

import javafx.geometry.*;

import javafx.scene.Parent;

import javafx.scene.Scene;

import javafx.scene.control.Label;

import javafx.geometry.Insets;

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.GridPane;

import javafx.stage.Stage;

public class Main extends Application

{

atOverride

public void start(Stage primaryStage) throws Exception

{

primaryStage.setTitle("Tip Calculator"); //setting the title

GridPane rootNode = new GridPane();

rootNode.setPadding(new Insets(15));

Scene myScene = new Scene(rootNode, 300, 200); //create a scene

rootNode.add(new Label("Amount:"), 0, 0);

TextField firstValue = new TextField();

rootNode.add(firstValue, 1, 0);

rootNode.add(new Label("Toatal is:"), 0, 5);

Button aButton = new Button("Calculate");

rootNode.add(aButton, 1, 2);

GridPane.setHalignment(aButton, HPos.LEFT); //set the alignment

TextField result = new TextField(); // label for result

result.setEditable(false);

rootNode.add(result, 1, 5);

TextField tax = new TextField();

rootNode.add(new Label("Tax:"), 0, 3); // label for tax

tax.setEditable(false);

rootNode.add(tax,1,3);

TextField tip = new TextField();

rootNode.add(new Label("Tip:"), 0, 4); //label for tip

tip.setEditable(false);

rootNode.add(tip,1,4);

aButton.setOnAction(e ->{

Float value1 = Float.valueOf(firstValue.getText());

Float value2 =(value1*18)/100; //calculating tip

Float value3 = (value1*7)/100; //calculating tax

Float r = value1+value2+value3 ; // total of all three amounts

tax.setText(value3.toString());

tip.setText(value2.toString());

result.setText(r.toString());

}

}

primaryStage.setScene(myScene); // add scene to stage

primaryStage.show(); // show window

public static void main(String[] args)

{

// launch the application

launch(args);

}

}