Hello I have this Two questions and I need the answer ! Thanks TOgTAII that demo

Question

Hello

I have this Two questions and I need the answer !

Thanks

TOgTAII that demonstrates the giam uses a check box to indicate whether the ltu hext line, as shown in Figupe 164la Four score and seven years ago our f new nation, nceived in athers bro Liberty, and dedcated are created equal, berty, and of Years 5 in a great civil war, testing wheis hot nation so conceived and so dedicated, can long endure Ne a battle-field of that war. We have come to dedicate a porion c fral resting place for those who here gave their lives that tha ive. It is altogetherfitting and proper that we should do ts.. 5.125 .375 5.625 188.71 189.28 89.85 190.43 91.01 191.58 192.16 11322.74 11357.13 1391.59 11426.11 11460.69 11495.34 16.41 (a) You can set the options to enable text editing and text wrapping. (b) The program displays a table for payments and total payments on a given loan based on various interest rates (Compare loans with various interest rates) Rewrite Programming Exercise 5.21 to create a GUI, as shown in Figure 16.41b. Your program should let the user enter the loan amount and loan period in the number of years from text fields, and it should display the monthly and total payments for each interest starting from 5 percent to 8 percent, with increments of one-eighth, in a rate y change the font of a tex

Explanation / Answer

package Chapter_16;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
/**
* (Compare loans with various interest rates)
* Rewrite Programming Exercise 5.21 to create a GUI,
* as shown in Figure 16.41b. Your program should let
* the user enter the loan amount and loan period in
* the number of years from text fields, and it should
* display the monthly and total payments for each interest
* rate starting from 5 percent to 8 percent,
* with increments of one-eighth, in a text area.
*
* Created by luizsa on 9/26/14.
*/
public class Exercise_13 extends Application {
TextField tfLoanAmount = new TextField();
TextField tfNumOfYears = new TextField();
TextArea textArea = new TextArea();
@Override
public void start(Stage primaryStage) {
EventHandler<ActionEvent> handler = event -> updateRates();
tfNumOfYears.setOnAction(handler);
tfLoanAmount.setOnAction(handler);
HBox topPane = new HBox();
topPane.setSpacing(10);
topPane.setPadding(new Insets(5));
Label lblLoanAmount = new Label("Loan Amount:", tfLoanAmount);
lblLoanAmount.setContentDisplay(ContentDisplay.RIGHT);
Label lblNumOfYears = new Label("Number Of Years:", tfNumOfYears);
lblNumOfYears.setContentDisplay(ContentDisplay.RIGHT);
Button btShowTable = new Button("Show Table");
btShowTable.setOnAction(handler);
topPane.getChildren().addAll(lblLoanAmount, lblNumOfYears, btShowTable);
BorderPane borderPane = new BorderPane(textArea);
borderPane.setTop(topPane);
primaryStage.setScene(new Scene(borderPane));
primaryStage.setTitle("Display Loan");
primaryStage.show();
}
private void updateRates() {
double annualInterestRate = 5.00;
double loanAmount = Double.parseDouble(tfLoanAmount.getText());
double numberOfYears = Double.parseDouble(tfNumOfYears.getText());
String s = String.format("%-1s%20s%20s ", "Interest Rate", "Monthly Payment", "Total Payment");
// making loop to display different interest rates
for ( ; annualInterestRate <= 8.00; annualInterestRate += 0.125) {
// calculating monthly and total payment rates
double monthlyInterestRate = annualInterestRate / 1200;
double monthlyPayment = loanAmount * monthlyInterestRate / (1 - 1 / Math.pow(1 + monthlyInterestRate, numberOfYears * 12));
double totalPayment = monthlyPayment * numberOfYears * 12;
// making % string for formatting reasons...
String str = "%";
// Displaying formatted info
s += String.format("%-1.3f%s%19.2f%30.2f ", annualInterestRate, str, ((int) (monthlyPayment * 100) / 100.0), ((int) (totalPayment * 100) / 100.0));
}
textArea.setText(s);
}
public static void main(String[] args) {
Application.launch(args);
}
}

package Chapter_16; import javafx.application.Application; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.geometry.Insets; import javafx.scene.Scene; import javafx.scene.control.*; import javafx.scene.layout.BorderPane; import javafx.scene.layout.HBox; import javafx.stage.Stage; /** * (Compare loans with various interest rates) * Rewrite Programming Exercise 5.21 to create a GUI, * as shown in Figure 16.41b. Your program should let * the user enter the loan amount and loan period in * the number of years from text fields, and it should * display the monthly and total payments for each interest * rate starting from 5 percent to 8 percent, * with increments of one-eighth, in a text area. * * Created by luizsa on 9/26/14. */ public class Exercise_13 extends Application { TextField tfLoanAmount = new TextField(); TextField tfNumOfYears = new TextField(); TextArea textArea = new TextArea(); @Override public void start(Stage primaryStage) { EventHandler<ActionEvent> handler = event -> updateRates(); tfNumOfYears.setOnAction(handler); tfLoanAmount.setOnAction(handler); HBox topPane = new HBox(); topPane.setSpacing(10); topPane.setPadding(new Insets(5)); Label lblLoanAmount = new Label("Loan Amount:", tfLoanAmount); lblLoanAmount.setContentDisplay(ContentDisplay.RIGHT); Label lblNumOfYears = new Label("Number Of Years:", tfNumOfYears); lblNumOfYears.setContentDisplay(ContentDisplay.RIGHT); Button btShowTable = new Button("Show Table"); btShowTable.setOnAction(handler); topPane.getChildren().addAll(lblLoanAmount, lblNumOfYears, btShowTable); BorderPane borderPane = new BorderPane(textArea); borderPane.setTop(topPane); primaryStage.setScene(new Scene(borderPane)); primaryStage.setTitle("Display Loan"); primaryStage.show(); } private void updateRates() { double annualInterestRate = 5.00; double loanAmount = Double.parseDouble(tfLoanAmount.getText()); double numberOfYears = Double.parseDouble(tfNumOfYears.getText()); String s = String.format("%-1s%20s%20s ", "Interest Rate", "Monthly Payment", "Total Payment"); // making loop to display different interest rates for ( ; annualInterestRate <= 8.00; annualInterestRate += 0.125) { // calculating monthly and total payment rates double monthlyInterestRate = annualInterestRate / 1200; double monthlyPayment = loanAmount * monthlyInterestRate / (1 - 1 / Math.pow(1 + monthlyInterestRate, numberOfYears * 12)); double totalPayment = monthlyPayment * numberOfYears * 12; // making % string for formatting reasons... String str = "%"; // Displaying formatted info s += String.format("%-1.3f%s%19.2f%30.2f ", annualInterestRate, str, ((int) (monthlyPayment * 100) / 100.0), ((int) (totalPayment * 100) / 100.0)); } textArea.setText(s); } public static void main(String[] args) { Application.launch(args); } }

package Chapter_16;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
/**
* (Compare loans with various interest rates)
* Rewrite Programming Exercise 5.21 to create a GUI,
* as shown in Figure 16.41b. Your program should let
* the user enter the loan amount and loan period in
* the number of years from text fields, and it should
* display the monthly and total payments for each interest
* rate starting from 5 percent to 8 percent,
* with increments of one-eighth, in a text area.
*
* Created by luizsa on 9/26/14.
*/
public class Exercise_13 extends Application {
TextField tfLoanAmount = new TextField();
TextField tfNumOfYears = new TextField();
TextArea textArea = new TextArea();
@Override
public void start(Stage primaryStage) {
EventHandler<ActionEvent> handler = event -> updateRates();
tfNumOfYears.setOnAction(handler);
tfLoanAmount.setOnAction(handler);
HBox topPane = new HBox();
topPane.setSpacing(10);
topPane.setPadding(new Insets(5));
Label lblLoanAmount = new Label("Loan Amount:", tfLoanAmount);
lblLoanAmount.setContentDisplay(ContentDisplay.RIGHT);
Label lblNumOfYears = new Label("Number Of Years:", tfNumOfYears);
lblNumOfYears.setContentDisplay(ContentDisplay.RIGHT);
Button btShowTable = new Button("Show Table");
btShowTable.setOnAction(handler);
topPane.getChildren().addAll(lblLoanAmount, lblNumOfYears, btShowTable);
BorderPane borderPane = new BorderPane(textArea);
borderPane.setTop(topPane);
primaryStage.setScene(new Scene(borderPane));
primaryStage.setTitle("Display Loan");
primaryStage.show();
}
private void updateRates() {
double annualInterestRate = 5.00;
double loanAmount = Double.parseDouble(tfLoanAmount.getText());
double numberOfYears = Double.parseDouble(tfNumOfYears.getText());
String s = String.format("%-1s%20s%20s ", "Interest Rate", "Monthly Payment", "Total Payment");
// making loop to display different interest rates
for ( ; annualInterestRate <= 8.00; annualInterestRate += 0.125) {
// calculating monthly and total payment rates
double monthlyInterestRate = annualInterestRate / 1200;
double monthlyPayment = loanAmount * monthlyInterestRate / (1 - 1 / Math.pow(1 + monthlyInterestRate, numberOfYears * 12));
double totalPayment = monthlyPayment * numberOfYears * 12;
// making % string for formatting reasons...
String str = "%";
// Displaying formatted info
s += String.format("%-1.3f%s%19.2f%30.2f ", annualInterestRate, str, ((int) (monthlyPayment * 100) / 100.0), ((int) (totalPayment * 100) / 100.0));
}
textArea.setText(s);
}
public static void main(String[] args) {
Application.launch(args);
}
}

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