Update it to create a class Student that includes four properties: an id (type Integer), a name (type String), a Major (type String) and a Grade (type Double). Use class Student to create objects (using buttonAdd) that will be read from the TextFields then save it into an ArrayList. Perform the following queries on the ArrayList of Student objects and show the results on the listViewStudents (Hint: add buttons as needed):d) Use lambdas and streams to calculate the total average of all Students grades, then show the result. 1. Ch3HW; import javafx.application.Application; import javafx.fxml.FXMLLoader; import javafx.scene.Parent; import javafx.scene.Scene; import javafx.stage.Stage; public class MainApp extends Application{ @Override publicvoidstart(StageprimaryStage) throwsException { FXMLLoader loader =newFXMLLoader(getClass().getResource("StudentScreen.fxml")); Parent parent = loader.load(); Scene scene =newScene(parent); primaryStage.setScene(scene); primaryStage.setTitle("Student Processing Screen"); primaryStage.show(); } publicstaticvoidmain(String[] args) { launch(args); } }2. <?xml version="1.0" encoding="UTF-8"?> <?import javafx.geometry.*?> <?import javafx.scene.effect.*?> <?import java.lang.*?> <?import java.util.*?> <?import javafx.scene.*?> <?import javafx.scene.control.*?> <?import javafx.scene.layout.*?> <FlowPane alignment="CENTER" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" style="-fx-font-size: 14; -fx-font-weight: bold;" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Ch3HW.StudentScreenController"> <children> <VBox alignment="CENTER" prefHeight="395.0" prefWidth="602.0"> <children> <HBox alignment="CENTER" prefHeight="321.0" prefWidth="602.0" spacing="15.0"> <children> <GridPane hgap="10.0" maxHeight="-Infinity" maxWidth="-Infinity" prefHeight="141.0" prefWidth="239.0" vgap="10.0"> <columnConstraints> <ColumnConstraints halignment="RIGHT" hgrow="SOMETIMES" maxWidth="142.0" minWidth="10.0" prefWidth="52.0" /> <ColumnConstraints hgrow="SOMETIMES" maxWidth="188.0" minWidth="10.0" prefWidth="177.0" /> </columnConstraints> <rowConstraints> <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" /> <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" /> <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" /> <RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" /> </rowConstraints> <children> <Label text="ID:" /> <Label text="Name:" GridPane.rowIndex="1" /> <Label text="Major:" GridPane.rowIndex="2" /> <Label text="Grade:" GridPane.rowIndex="3" /> <TextField fx:id="textFieldID" prefHeight="25.0" prefWidth="171.0" GridPane.columnIndex="1" /> <TextField fx:id="textFieldName" prefHeight="25.0" prefWidth="145.0" GridPane.columnIndex="1" GridPane.rowIndex="1" /> <TextField fx:id="textFieldMajor" GridPane.columnIndex="1" GridPane.rowIndex="2" /> <TextField fx:id="textFieldGrade" GridPane.columnIndex="1" GridPane.rowIndex="3" /> </children> </GridPane> <ListView fx:id="listViewStudents" prefHeight="321.0" prefWidth="302.0" style="-fx-font-family: monospaced;" /> </children> </HBox> <HBox alignment="CENTER" prefHeight="74.0" prefWidth="602.0" spacing="15.0"> <children> <Button fx:id="buttonAdd" mnemonicParsing="false" onAction="#buttonAddHandle" text="Add" /> <Button fx:id="buttonClear" mnemonicParsing="false" onAction="#buttonClearHandle" text="Clear" /> </children></HBox> </children> <effect> <InnerShadow choke="0.38" color="CORAL" height="85.5" radius="43.175" width="89.2" /> </effect> <padding> <Insets bottom="10.0" left="10.0" right="10.0" top="10.0" /> </padding> </VBox> </children> </FlowPane>3. package Ch3HW; import java.net.URL; import java.util.ResourceBundle; import javafx.event.ActionEvent; import javafx.fxml.FXML; import javafx.fxml.Initializable; import javafx.scene.control.Button; import javafx.scene.control.ListView; import javafx.scene.control.TextField; /*** FXML Controller class*/ public class StudentScreenController implements Initializable { @FXML privateTextField textFieldID; @FXML privateTextField textFieldName; @FXML privateTextField textFieldMajor; @FXML privateTextField textFieldGrade; @FXML privateListView<String> listViewStudents; @FXML privateButton buttonAdd; @FXML privateButton buttonClear; /*** Initializes the controller class.*/ @Override publicvoidinitialize(URLurl, ResourceBundlerb) { // This is just a intitial data listViewStudents.getItems() .add(String.format("%-5s %-10s %-7s %8.2f", "111", "Ahmad", "CS", 93.2)); listViewStudents.getItems() .add(String.format("%-5s %-10s %-7s %8.2f","123", "Marwa", "EDUC", 87.9)); } @FXML privatevoidbuttonAddHandle(ActionEventevent) { } @FXML privatevoidbuttonClearHandle(ActionEventevent) { } }

It is defined as a template/blueprint that describes the behavior/state that the object of its type…

Answered: it to create a class Student that…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Update it to create a class Student that includes four properties: an id (type Integer), a name (type String), a Major (type String) and a Grade (type Double). Use class Student to create objects (using buttonAdd) that will be read from the TextFields then save it into an ArrayList. Perform the following queries on the ArrayList of Student objects and show the results on the listViewStudents (Hint: add buttons as needed):

d) Use lambdas and streams to calculate the total average of all Students grades, then show the result.

1.
	Ch3HW;
	import javafx.application.Application;
	import javafx.fxml.FXMLLoader;
	import javafx.scene.Parent;
	import javafx.scene.Scene;
	import javafx.stage.Stage;
	public class MainApp extends Application{
	@Override
	publicvoidstart(StageprimaryStage) throwsException {
	FXMLLoader loader =newFXMLLoader(getClass().getResource("StudentScreen.fxml"));
	Parent parent = loader.load();
	Scene scene =newScene(parent);
	primaryStage.setScene(scene);
	primaryStage.setTitle("Student Processing Screen");
	primaryStage.show();
	}
	publicstaticvoidmain(String[] args) {
	launch(args);
	}
	}

2.
	<?xml version="1.0" encoding="UTF-8"?>
	<?import javafx.geometry.*?>
	<?import javafx.scene.effect.*?>
	<?import java.lang.*?>
	<?import java.util.*?>
	<?import javafx.scene.*?>
	<?import javafx.scene.control.*?>
	<?import javafx.scene.layout.*?>
	<FlowPane alignment="CENTER" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" style="-fx-font-size: 14; -fx-font-weight: bold;" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Ch3HW.StudentScreenController">
	<children>
	<VBox alignment="CENTER" prefHeight="395.0" prefWidth="602.0">
	<children>
	<HBox alignment="CENTER" prefHeight="321.0" prefWidth="602.0" spacing="15.0">
	<children>
	<GridPane hgap="10.0" maxHeight="-Infinity" maxWidth="-Infinity" prefHeight="141.0" prefWidth="239.0" vgap="10.0">
	<columnConstraints>
	<ColumnConstraints halignment="RIGHT" hgrow="SOMETIMES" maxWidth="142.0" minWidth="10.0" prefWidth="52.0" />
	<ColumnConstraints hgrow="SOMETIMES" maxWidth="188.0" minWidth="10.0" prefWidth="177.0" />
	</columnConstraints>
	<rowConstraints>
	<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
	<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
	<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
	<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
	</rowConstraints>
	<children>
	<Label text="ID:" />
	<Label text="Name:" GridPane.rowIndex="1" />
	<Label text="Major:" GridPane.rowIndex="2" />
	<Label text="Grade:" GridPane.rowIndex="3" />
	<TextField fx:id="textFieldID" prefHeight="25.0" prefWidth="171.0" GridPane.columnIndex="1" />
	<TextField fx:id="textFieldName" prefHeight="25.0" prefWidth="145.0" GridPane.columnIndex="1" GridPane.rowIndex="1" />
	<TextField fx:id="textFieldMajor" GridPane.columnIndex="1" GridPane.rowIndex="2" />
	<TextField fx:id="textFieldGrade" GridPane.columnIndex="1" GridPane.rowIndex="3" />
	</children>
	</GridPane>
	<ListView fx:id="listViewStudents" prefHeight="321.0" prefWidth="302.0" style="-fx-font-family: monospaced;" />
	</children>
	</HBox>
	<HBox alignment="CENTER" prefHeight="74.0" prefWidth="602.0" spacing="15.0">
	<children>
	<Button fx:id="buttonAdd" mnemonicParsing="false" onAction="#buttonAddHandle" text="Add" />
	<Button fx:id="buttonClear" mnemonicParsing="false" onAction="#buttonClearHandle" text="Clear" />
	</children></HBox>
	</children>
	<effect>
	<InnerShadow choke="0.38" color="CORAL" height="85.5" radius="43.175" width="89.2" />
	</effect>
	<padding>
	<Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
	</padding>
	</VBox>
	</children>
	</FlowPane>

3.
	package Ch3HW;
	import java.net.URL;
	import java.util.ResourceBundle;
	import javafx.event.ActionEvent;
	import javafx.fxml.FXML;
	import javafx.fxml.Initializable;
	import javafx.scene.control.Button;
	import javafx.scene.control.ListView;
	import javafx.scene.control.TextField;
	/*** FXML Controller class*/
	public class StudentScreenController implements Initializable {
	@FXML
	privateTextField textFieldID;
	@FXML
	privateTextField textFieldName;
	@FXML
	privateTextField textFieldMajor;
	@FXML
	privateTextField textFieldGrade;
	@FXML
	privateListView<String> listViewStudents;
	@FXML
	privateButton buttonAdd;
	@FXML
	privateButton buttonClear;
	/*** Initializes the controller class.*/
	@Override
	publicvoidinitialize(URLurl, ResourceBundlerb) {
	// This is just a intitial data
	listViewStudents.getItems()
	.add(String.format("%-5s %-10s %-7s %8.2f", "111", "Ahmad", "CS", 93.2));
	listViewStudents.getItems()
	.add(String.format("%-5s %-10s %-7s %8.2f","123", "Marwa", "EDUC", 87.9));
	}
	@FXML
	privatevoidbuttonAddHandle(ActionEventevent) {
	}
	@FXML
	privatevoidbuttonClearHandle(ActionEventevent) {
	}
	}

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