Question

javafx

1. Implement a BMI (Body Mass Index) server that will accept height and weight from the client, calculate the BMI and return a string with the BMI and a status (l.e. normal, over weight, etc.). Build a GUI using JavaFX. You are given a working BMI class that will do the BMI calculations, etc. A single BMI client connection is sufficient. 2. Implement a JavaFX BMI client that will allow the user to enter height (in inches), weight (in pounds) and displays the BMI information returned from the server. Hint: The code presented in section 33.2.4 would be an excellent example to follow. A sample user interface that would be acceptable and sample data: BMI Client Height in inches Weight in this BMI 23.67. Normal 70 165 Submit Served May 10 2226:33 POT 2019 Conded to as May 10 22:2702 POT 2019 Weg 1650

Answer 1

Hi,

First is the BMIcontroller and 2nd one is BMI class 3rd is BMI.fxml

package bmi;

import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
import javafx.scene.control.RadioButton;
import javafx.scene.control.TextField;

/**
*

*/
public class BMIController implements Initializable {
  
@FXML
private Label label;
@FXML
private RadioButton pi;
@FXML
private RadioButton km;
@FXML
private TextField weight;
@FXML
private TextField height;
  
  
  
@FXML
private void handleButtonAction(ActionEvent event) {
try{
Double w = new Double(weight.getText());
Double h = new Double(height.getText());
Double bmi;
  
if(pi.isSelected()){
bmi = (w * 703.0)/(h*h);
label.setText(String.format("%.2f",bmi));
}
else if(km.isSelected()) {
bmi = w /(h*h);
label.setText(String.format("%.2f",bmi));
}
  
}catch(NumberFormatException nf){
weight.setText("Enter valid value");
weight.selectAll();
weight.requestFocus();
height.setText("Enter valid value");
height.selectAll();
  
}
  
}
  
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
  
}

Now BMI java class.

package bmi;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

/**
*

*/
public class BMI extends Application {
  
@Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("BMI.fxml"));
  
Scene scene = new Scene(root);
stage.setTitle("BMI CALCULATOR");
stage.setScene(scene);
stage.show();
}

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
  
}

And now is BMIfxml.

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.text.*?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<AnchorPane id="AnchorPane" prefHeight="480.0" prefWidth="412.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/8" fx:controller="bmi.BMIController">
<children>
<Button fx:id="button" layoutX="155.0" layoutY="272.0" onAction="#handleButtonAction" text="Calculate" />
<Label fx:id="label" alignment="CENTER" layoutX="14.0" layoutY="381.0" minHeight="16" minWidth="69" prefHeight="64.0" prefWidth="180.0" text="0.0">
<font>
<Font name="System Bold Italic" size="24.0" />
</font></Label>
<TextArea layoutX="193.0" layoutY="319.0" prefHeight="147.0" prefWidth="206.0" text="BMI VALUES&#10;Underweight:&#9;less than 18.5&#10;Normal:&#9;&#9;between 18.5 and 24.9&#10;Overweight:&#9;between 25 and 29.9&#10;Obese:&#9;&#9;30 or greater&#10;">
<font>
<Font size="11.0" />
</font>
</TextArea>
<TextField fx:id="weight" layoutX="110.0" layoutY="145.0" />
<TextField fx:id="height" layoutX="110.0" layoutY="213.0" />
<RadioButton fx:id="pi" layoutX="60.0" layoutY="47.0" mnemonicParsing="false" selected="true" text="Pounds-Inches">
<toggleGroup>
<ToggleGroup fx:id="ip" />
</toggleGroup>
</RadioButton>
<RadioButton fx:id="km" layoutX="227.0" layoutY="47.0" mnemonicParsing="false" text="Kilograms-Meters" toggleGroup="$ip" />
<Label layoutX="119.0" layoutY="117.0" text="Weight" />
<Label layoutX="119.0" layoutY="190.0" text="Height" />
<Label layoutX="28.0" layoutY="319.0" prefHeight="50.0" prefWidth="152.0" text="Your BMI is:">
<font>
<Font size="24.0" />
</font>
</Label>
</children>
</AnchorPane>