I am getting a error at line 73 and 75 , can you please review the code ? //get text fields Line 73 - doubleinvestmentAmount = Double.parseDouble(investmentAmount.getTest()); Line 75 - int years = Integer.parseInt(years.getText()); package chapter15; import javafx.application.Application; import javafx.geometry.HPos; import javafx.geometry.Pos; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.scene.control.TextField; import javafx.scene.layout.GridPane; import javafx.scene.control.Button; import javafx.geometry.Insets; //15.5 Create an investment calculator using Text Boxes //program calculates the furtureValue at a given interest rate for a specified number of years // futureValue = investmentAmount * (1 + monthlyIntrestRate)^years*12 //Display the future amount in the test field when the users clicks the Calculate button import javafx.stage.Stage; //Steps to create a user interface program //1. Create a user interface // A. gridPane, add Lables, text fields, and button to pane public class InvestmentCalculator extends Application{ private TextField futureValue = new TextField ("00.00"); private TextField investmentAmount = new TextField ("0"); private TextField interestRate = new TextField ("0.00"); private TextField years = new TextField ("$"); private Button calculateButton = new Button("Calculate"); // futureValue.setEditable(false); @Override publicvoid start (Stage primaryStage)throws Exception {//Creeate the UI //Create an GridPane GridPane pane = new GridPane(); pane.setAlignment(Pos.BASELINE_LEFT); //Set H and V gap can lay out its children in a single horizontal and veritcal column. pane.setHgap(5);// creates space ablove and below pane.setVgap(5);//creates space on the sides // Label ("String value) , column, row ; pane.add(new Label("Investment Amount:"),0,0); pane.add(investmentAmount,1,0); pane.add(new Label("Number of Years:"),0,1); pane.add(years,1,1); pane.add(new Label("Interest Rate:"),0,2); pane.add(interestRate,1,2); pane.add(new Label("Future Value:"),0,3); pane.add(futureValue,1,3); pane.add(calculateButton, 1, 4); // B. Set the alignment of the button to the right pane.setAlignment(Pos.CENTER); investmentAmount.setAlignment(Pos.BOTTOM_RIGHT); years.setAlignment(Pos.BOTTOM_RIGHT); futureValue.setAlignment(Pos.BOTTOM_RIGHT); interestRate.setAlignment(Pos.BOTTOM_RIGHT); GridPane.setHalignment(calculateButton, HPos.RIGHT); //2. Process the Event // Process events on the calculate Button calculateButton.setOnAction(e -> futureValue()); Scene scene = new Scene(pane,350,300); primaryStage.setTitle("Investment Calculator"); //set the title primaryStage.setScene(scene); primaryStage.show(); }//Calculate the futureamount //get the vaules from the test fields and calculate the futureValue privatevoid futureValue() { //get testfilds values doubleinvestmentAmount = Double.parseDouble(investmentAmount.getTest()); intyears = Integer.parseInt(years.getText()); doublemonthlyInterestRate = Double.parseDouble(interestRate.getText()) / 1200; futureValue.setText(String.format("$%.2f", (investmentAmount * Math.pow(1 + monthlyInterestRate, years * 12)))); } publicstaticvoid main(String[]args) { launch(args); } }

I am getting a error at line 73 and 75 , can you please review the code ? //get text fields Line 73 - doubleinvestmentAmount = Double.parseDouble(investmentAmount.getTest()); Line 75 - int years = Integer.parseInt(years.getText()); package chapter15; import javafx.application.Application; import javafx.geometry.HPos; import javafx.geometry.Pos; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.scene.control.TextField; import javafx.scene.layout.GridPane; import javafx.scene.control.Button; import javafx.geometry.Insets; //15.5 Create an investment calculator using Text Boxes //program calculates the furtureValue at a given interest rate for a specified number of years // futureValue = investmentAmount * (1 + monthlyIntrestRate)^years12 //Display the future amount in the test field when the users clicks the Calculate button import javafx.stage.Stage; //Steps to create a user interface program //1. Create a user interface // A. gridPane, add Lables, text fields, and button to pane public class InvestmentCalculator extends Application{ private TextField futureValue = new TextField ("00.00"); private TextField investmentAmount = new TextField ("0"); private TextField interestRate = new TextField ("0.00"); private TextField years = new TextField ("$"); private Button calculateButton = new Button("Calculate"); // futureValue.setEditable(false); @Override publicvoid start (Stage primaryStage)throws Exception {//Creeate the UI //Create an GridPane GridPane pane = new GridPane(); pane.setAlignment(Pos.BASELINE_LEFT); //Set H and V gap can lay out its children in a single horizontal and veritcal column. pane.setHgap(5);// creates space ablove and below pane.setVgap(5);//creates space on the sides // Label ("String value) , column, row ; pane.add(new Label("Investment Amount:"),0,0); pane.add(investmentAmount,1,0); pane.add(new Label("Number of Years:"),0,1); pane.add(years,1,1); pane.add(new Label("Interest Rate:"),0,2); pane.add(interestRate,1,2); pane.add(new Label("Future Value:"),0,3); pane.add(futureValue,1,3); pane.add(calculateButton, 1, 4); // B. Set the alignment of the button to the right pane.setAlignment(Pos.CENTER); investmentAmount.setAlignment(Pos.BOTTOM_RIGHT); years.setAlignment(Pos.BOTTOM_RIGHT); futureValue.setAlignment(Pos.BOTTOM_RIGHT); interestRate.setAlignment(Pos.BOTTOM_RIGHT); GridPane.setHalignment(calculateButton, HPos.RIGHT); //2. Process the Event // Process events on the calculate Button calculateButton.setOnAction(e -> futureValue()); Scene scene = new Scene(pane,350,300); primaryStage.setTitle("Investment Calculator"); //set the title primaryStage.setScene(scene); primaryStage.show(); }//Calculate the futureamount //get the vaules from the test fields and calculate the futureValue privatevoid futureValue() { //get testfilds values doubleinvestmentAmount = Double.parseDouble(investmentAmount.getTest()); intyears = Integer.parseInt(years.getText()); doublemonthlyInterestRate = Double.parseDouble(interestRate.getText()) / 1200; futureValue.setText(String.format("$%.2f", (investmentAmount Math.pow(1 + monthlyInterestRate, years * 12)))); } publicstaticvoid main(String[]args) { launch(args); } }

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

I am getting a error at line 73 and 75 , can you please review the code ?

//get text fields

Line 73 - doubleinvestmentAmount = Double.parseDouble(investmentAmount.getTest());

Line 75 - int years = Integer.parseInt(years.getText());

package chapter15;

import javafx.application.Application;

import javafx.geometry.HPos;

import javafx.geometry.Pos;

import javafx.scene.Scene;

import javafx.scene.control.Label;

import javafx.scene.control.TextField;

import javafx.scene.layout.GridPane;

import javafx.scene.control.Button;

import javafx.geometry.Insets;

//15.5 Create an investment calculator using Text Boxes

//program calculates the furtureValue at a given interest rate for a specified number of years

// futureValue = investmentAmount * (1 + monthlyIntrestRate)^years*12

//Display the future amount in the test field when the users clicks the Calculate button

import javafx.stage.Stage;

//Steps to create a user interface program

//1. Create a user interface

// A. gridPane, add Lables, text fields, and button to pane

public class InvestmentCalculator extends Application{

private TextField futureValue = new TextField ("00.00");

private TextField investmentAmount = new TextField ("0");

private TextField interestRate = new TextField ("0.00");

private TextField years = new TextField ("$");

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

// futureValue.setEditable(false);

@Override

publicvoid start (Stage primaryStage)throws Exception

{//Creeate the UI

//Create an GridPane

GridPane pane = new GridPane();

pane.setAlignment(Pos.BASELINE_LEFT);

//Set H and V gap can lay out its children in a single horizontal and veritcal column.

pane.setHgap(5);// creates space ablove and below

pane.setVgap(5);//creates space on the sides

// Label ("String value) , column, row ;

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

pane.add(investmentAmount,1,0);

pane.add(new Label("Number of Years:"),0,1);

pane.add(years,1,1);

pane.add(new Label("Interest Rate:"),0,2);

pane.add(interestRate,1,2);

pane.add(new Label("Future Value:"),0,3);

pane.add(futureValue,1,3);

pane.add(calculateButton, 1, 4);

// B. Set the alignment of the button to the right

pane.setAlignment(Pos.CENTER);

investmentAmount.setAlignment(Pos.BOTTOM_RIGHT);

years.setAlignment(Pos.BOTTOM_RIGHT);

futureValue.setAlignment(Pos.BOTTOM_RIGHT);

interestRate.setAlignment(Pos.BOTTOM_RIGHT);

GridPane.setHalignment(calculateButton, HPos.RIGHT);

//2. Process the Event

// Process events on the calculate Button

calculateButton.setOnAction(e -> futureValue());

Scene scene = new Scene(pane,350,300);

primaryStage.setTitle("Investment Calculator"); //set the title

primaryStage.setScene(scene);

primaryStage.show();

}//Calculate the futureamount

//get the vaules from the test fields and calculate the futureValue

privatevoid futureValue() {

//get testfilds values

doubleinvestmentAmount = Double.parseDouble(investmentAmount.getTest());

intyears = Integer.parseInt(years.getText());

doublemonthlyInterestRate = Double.parseDouble(interestRate.getText()) / 1200;

futureValue.setText(String.format("$%.2f",

(investmentAmount * Math.pow(1 + monthlyInterestRate, years * 12))));

}

publicstaticvoid main(String[]args) {

launch(args);

}

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JavaFxShapes.java
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moveTheBall.java
*InvestmentCalculator.java XEmoji.java
futureValue.setAlignment
interestRate.setAlignment
(Pos. BOTTOM RIGHT);
(Pos. BOTTOM_RIGHT) ;
GridPane.setHalignment (calculateButton, HPos.RIGHT) ;
//2. Process the Event
// Process events on the calculate Button
calculateButton.setOnAction (e -> futureValue () );
}
Scene scene = new Scene (pane, 350, 300);
primaryStage.setTitle ("Investment Calculator"); //set the title
primaryStage.setScene (scene);
primaryStage.show();
}//Calculate the futureamount
//get the vaules from the test fields and calculate the futureValue
private void futureValue () {
//get testfilds values
double investment Amount = Double.parse Double (investment Amount.getTest ();
}
int years = Integer.parseInt(years.getText());
double monthlyInterestRate = Double.parse Double (interestRate.getText()) / 1200;
futureValue.setText (String.format("$%.2f",
(investment Amount * Math.pow (1 + monthlyInterestRate, years * 12))));
public static void main(String[] args) {
launch (args);
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Ir

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