java Write a JavaFX program that allows a user to moves a rectangle UP, DOWN, LEFT or RIGHTusing the arrow keys.Move a rectangleDiscuss:1. Which of the following registrations methods can you use to register anEventHandler by the rectangle object for this program?setOnkeyPressed, setOnkeyReleased or setOnkeyTyped2. Since you are going to use keys, how you can move the focus to therectangle? Is using the rectangle object's setFocusTraversable(true) methodwould help you?3. How can you determine which arrow keys is pressed? Is using the KeyEventobject's getCode() method would help you? Do you need to compare thereturned value by getCode() with one of the four arrow keys' constants in theKeyCode class?4. If the pressed arrow key is Up or Down, which rectangle coordinate youshould update? X or Y ( setx or setY method ).5. If the pressed arrow key is Left or Right, which rectangle coordinate youshould update? X or Y ( setX or setY method ).Part of the UML class diagram of KeyEvent class along with part of KeyCodeclass's constants list are given in the next page.

import java.awt.Canvas;import java.awt.Dimension;import java.awt.Graphics2D;import…

Answered: Write a JavaFX program that allows a…

Engineering

Computer Science

Write a JavaFX program that allows a user to moves a rectangle UP, DOWN, LEFT or RIGHT using the arrow keys.

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

For this task, you need to develop a JavaFX application in NetBeans that implements a LinkedHashMap class. The Java application should consist of a graphical user interface that can be used to add elements to the LinkedHashMap. There should be two TextFields to take in the element name and number. Then there should be four buttons to do four tasks, namely: add, change, remove and show all elements in the LinkedHashMap. Your buttons should have Action methods and should make use of methods in the LinkedHashMap class.When the Add button is clicked, the element name and value should be added to the LinkedHashMap. Make use of the LinkedHashMap methods to add the elements. When the user fills in the element name and number and the Add button is clicked, a message should be displayed in an alert dialog box to the user to inform them of this If no element is specified at the time the Add button is clicked, an error message should be displayed to inform the user to enter the element
Using Java, solve the following problem using JavaFX: Write a program (Call the class ImageDisplay) that displays four images in a grid pane, as shown below. You are given 4 flags for the display, but you are free to choose other images. You are to use a GridPane for the layout. Also use ImageView. You will need to create an object for each image and use add method of GridPane to add an image to a specified row and column layout.
Please assist with non graded problem. Create a Calculator class that implements sum, subtraction, multiplication, and division operations, and throws an appropriate exception whenever the user attempts to perform a division by zero. Then develop a graphical interface (with JavaFx) for your calculator using TextField, Button, and Label objects, or any other graphical objects you like. Graphically display division by zero errors.
Implement a graphical application that displays a list of courses. Briefly, this GUI will take the inputs (i.e., course information), store them in an array list, and display course information in the output area. Figure 1 shows the layout ofthe CourseDisplay GUI. You should have three Java files: 1. CourseDisplayFrame class that extendsJFrame class (The main part of your program). 2.CourseDisplayViewer class, which contains the main method where a CourseDisplay object will be created, and the GUI will pop up (Suggested frame width of 450, and frame height of 400). 3.Course class, which is the class that models the Course objects (This file will be given to you). In your CourseDisplayFrame class file, you should have the followings: •Input area: –A text label and a text field (suggested width of 30) for course code; –A text label and a text field (suggested width of 30) for course name; –A text label and a text field (suggested width of 30) for course credit; –A text label and a text…
. Download the program from the instructor’s GitHub account (Ch3HW) then update it tocreate 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 intoan ArrayList. Perform the following queries on the ArrayList of Student objects and show the results on the listViewStudents (Hint: add buttons as needed):a) Use lambdas and streams to sort the Student objects by name, then show the results.b) Use lambdas and streams to map each Student to its name and grade, sort the results by grade (descending), then display the results.c) Use lambdas and streams to map each Student to its name and grade, to select the Students who have grade values in the range 80 to 90. Sort the results by grade value(descending), then show the results.d) Use lambdas and streams to calculate the total average of all Students…
Part 1:1. Write a JavaFX program that rotates a rectangle 15 degrees to the right when theRotate button is clicked as shown below. You must use an inner class to implement theEventHandler interface and its handle method.2. Make a new copy (version) of this JavaFX program and use an anonymous inner class toimplement the EventHandler interface and its handle method.3. Make a new copy (version) of this JavaFX program and use a Lambda Expression toimplement handle method of the EventHandler interface.
Copy and rename SimplApp.java; then modify it to create a GUI program that accepts a String from the user in a TextField and reports whether or not there are repeated characters in it. Thus your program is a client of the class which you created in question 1 above. N.B. most of the modification needs to occur in the constructor and the actionPerformed() methods. So you should spend time working out exactly what these two methods are doing, so that you can make the necessary modifications.
Java ProgramEdit this program that when you press the clear button, it actually clears the textfield and data of the previous numbers pressed.import java.awt.BorderLayout;import java.awt.Container;import java.awt.Dimension;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.ArrayList;import javax.swing.*;public class Pincode extends JPanel implements ActionListener {JLabel display, displayExtra;JButton numButton;JButton clr;JButton etr;String displayContent = "";String[] numPadContent = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "CLEAR", "0", "ENTER"};ArrayList<JButton> buttonList;String PASSWORD = "061904";JFrame f;Pincode(Container pane) {pane.setPreferredSize(new Dimension(320, 335));display = new JLabel(displayContent);displayExtra = new JLabel(displayContent);display.setPreferredSize(new Dimension(320, 25));display.setBorder(BorderFactory.createLoweredBevelBorder());pane.add(display,…
Imagine a pile of books on your desk. Each book is so large and heavy that you can remove only the top one from the pile. You cannot remove a book from under another one. Likewise, you cannot add a book beneath another one. You can add another book to the pile only by placing it on top of the pile. If you represent booka by thier titles alone, the "PileInterface.java" interface attached can be used to track the books in the pile on your desk. Define a class "PilesOfBooks.java" that implements this interface using a chain of linked nodes. Then, write a program that demonstrates your implementation (i.e. PilesOfBookDemo.java) to prompt the user for various book titles and thoroughly tests all the methods in the PileOfBooks.java.class. public interface PileInterface<T>{/** Adds a new book to the top of this pile.@param newBook An object to be added to the pile. */public void add(T newBook);/** Removes and returns this pile's top book.@return Either the book at the top of the pile…
A GUI implementation is given below. Complete the program as per comments. import java.awt.*; import java.awt.event.*; import javax.swing ]; swing package public class JFrameAppTwo extends | { Il extends what? implements what? implements Il text filed of size 15 /l text filed of size 15 JTextField x1 = JTextField x2 = JLabel ans = new JLabel("Ans="); JButton calc = Il a button with label "Sub" JFrameAppTwo (() { super("Two Values Calculator "): setSize(300,100); selLayout( add(x1); add(x2); add(ans); add(calc); calc. ): Il set Grid layout of 3 by 3 Il add action listener to calc button setVisible(true); setDefaultCloseOperation(EXIT_ON_CLOSE); } public void actionPerformed( double t1 = Double.parseDouble(x1.getText().trim(); double t2 = Double.parseDouble(x2.getText().trim()3: ans.setText( "Ans=" + ( t1 - t2 )): } public static void main(String|| args) { ]) { Il parameters Il Create an anonymous object of class
Q2. In the ClockDisplay example, create a NumberDisplay object with limit 80 in the Code Pad by typing NumberDisplay nd = new NumberDisplay(80); Then call its getValue(), setValue(int value), and increment() methods in the Code Pad.
Write a program called “PatternMatcher.java” that may be used to search a dictionaryof words for those that match a given pattern. The program will interact with the user via a graphical user interface that has been suppliedto you in the WordSearch class.Your task is to implement an ActionListener type class designed to deal with the user input.The main program class in the WordSearch class responsible for building the GUIstructure, building a WordList from the file of words, and creating an ActionListener.An ActionListener will be responsible for dealing with the event where the user enters apattern in the JTextField and presses return. It will be responsible for1. when the user presses enter, obtaining the text from the field, and if valid, creating aPattern object,2. building an array of Object from the WordList containing words that match thePattern,3. putting the array of Object in the JList for display