Consider the following code. Replace the tags_??1_ and _??2_, respectively, by filling in the text fields below, such that the given code snippet registers an event handler fora given Scene (called scene) that, whenever the mouse enters the scene, simply prints the type and position of the corresponding mouse event on the console.EventHandler mouseHandler = new ??1_ () { // replace_??1__@Overridepublic void _??2_(MouseEvent myEvent) {// replace _??2__System.out.println (myEvent.getEventType() + " : " + myEvent.getX() + ":" + myEvent.getY());}};scene.setOnMouseEntered (mouseHandler);_??1_: type your answer..._??2_: type your answer... What is not an equivalent of the handler below when written in Lambda notation?btn.setOnAction (new EventHandler () {@Overridepublic void handle (ActionEvent event) {rec. setFill (Color.GREEN);}});btn.setOnAction(event -> rec. setFill (Color.GREEN));btn.setOnAction (event -> {rec. setFill (Color.GREEN);});btn.setOnAction (this);btn.setOnAction ((ActionEvent event) -> {rec.setFill (Color.GREEN);});

A) btn.setOnAction( event -> rec.setFill(Color.GREEN) );…

Answered: What is not an equivalent of the…

What is not an equivalent of the handler below when written in Lambda notation? btn.setOnAction (new EventHandler () { @Override public void handle (ActionEvent event) { setFill(Color.GREEN); rec.

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

See similar textbooks

Similar questions

Explain the functionality of each line of code in the provided C# scripts- using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.UI; public class Healthbar : MonoBehaviour{ [SerializeField] private Health playerHealth; [SerializeField] private Image totalHealthbar; [SerializeField] private Image currentHealthbar; private void Start() { totalHealthbar.fillAmount = playerHealth.currentHealth / 10; } private void Update() { currentHealthbar.fillAmount = playerHealth.currentHealth / 10; }} using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.SceneManagement; public class Health : MonoBehaviour{ [SerializeField] private float startingHealth; public float currentHealth { get; private set; } private Animator anim; private void Awake() { currentHealth = startingHealth; anim = GetComponent<Animator>(); } public void…
Using an appropriate package and test class name, write the following tests for GamerProfile's constructor: testNameShouldNotBeNull testNameShouldNotBeEmpty testNameShouldNotBeBlank testShouldCreateValidGamerProfile Hint: use assertTrue or assertFalse for getters involving boolean values Hint: get the game list from the gamer and call the list's isEmpty along with an assertTrue or assertFalse, as appropriate.GamerProfile:public class GamerProfile { private String userName; private boolean pvpEnabled; private boolean online; private ArrayList<GameInfo> gameLibrary; public GamerProfile(String userName) { this.userName = userName; this.pvpEnabled = false; this.online = false; gameLibrary = new ArrayList<GameInfo>(); } // Getter for the getUserName variable public String getUserName() { return userName; } // Getter for the PvpEnabled…
You have to use comment function to describe what each line does import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.List; public class PreferenceData { private final List<Student> students; private final List<Project> projects; private int[][] preferences; private static enum ReadState { STUDENT_MODE, PROJECT_MODE, PREFERENCE_MODE, UNKNOWN; }; public PreferenceData() { super(); this.students = new ArrayList<Student>(); this.projects = new ArrayList<Project>(); } public void addStudent(Student s) { this.students.add(s); } public void addStudent(String s) { this.addStudent(Student.createStudent(s)); } public void addProject(Project p) { this.projects.add(p); } public void addProject(String p) { this.addProject(Project.createProject(p)); } public void createPreferenceMatrix() { this.preferences = new…
2 part question I am using eclipse! Create a class Circle, which - has a field radius (double) It should have appropriate accessor and mutator. If the Circle instance is created without parameter, the radius should be set to 1.0. Otherwise the radius should be set to the specified value. The Circle class should have a class level (not instance level) field called Pi. Since Pi is a known constant (3.14159), this field should be a constant. This variable can be accessed directly by outside objects. This Circle class should have a getArea() method and getPerimeter() method. You need to decide their return value and access level. Note: Area = Pi * radius * radius Perimeter = 2 * Pi * Radius part 2 Create a subclass of Circle class ColoredCircle by implementing the ColoredShape interface. It should have a field color of type enum ShapeColor. ColoredShape.java ShapeColor.java ColoredCircle should have two constructors. One will takes one parameters radius and set the color to…
In C++ Create a new project named lab8_1. You will be implementing two classes: A Book class, and a Bookshelf class. The Bookshelf has a Book object (actually 3 of them). You will be able to choose what Book to place in each Bookshelf. Here are their UML diagrams Book class UML Book - author : string- title : string- id : int- count : static int + Book()+ Book(string, string)+ setAuthor(string) : void+ setTitle(string) : void+ print() : void+ setID() : void And the Bookshelf class UML Bookshelf - book1 : Book- book2 : Book- book3 : Book + Bookshelf()+ Bookshelf(Book, Book, Book)+ setBook1(Book) : void+ setBook2(Book) : void+ setBook3(Book) : void+ print() : void Some additional information: The Book class also has two constructors, which again offer the option of declaring a Book object with an author and title, or using the default constructor to set the author and title later, via the setters . The Book class will have a static member variable…
InheritanceDemo.java: // StudentName Today's Date public class InheritanceDemo { public static void main(String[] args) { KleenexBox kb1 = new KleenexBox(); KleenexBox kb2 = new KleenexBox(100); Box justABox = new Box(); System.out.println("justABox has area " + BoxArea(justABox)); System.out.println("kb1 has area " + BoxArea(kb1)); System.out.println("kb2 has this many square inches of tissue: " + KleenexArea(kb2)); } public static double BoxArea (Box b) { return b.width * b.length; } public static double KleenexArea (KleenexBox a) { return a.width * a.length * a.numTissues; } } Box.java: // Student Name Today's Date public class Box { public double width; public double length; public String label; } KleenexBox.java: // Student's Name Today's Date public class KleenexBox extends Box { public int numTissues; // A new Kleenex box public KleenexBox() { numTissues = 50; length = 8.0; width = 5.0; } // A new Kleenex box with a specific number of tissues public…