toObject (keyValuePair) Parameters • keyValuePair - An Array containing two elements; a string key and any other JavaScript value. Return Value • An object with one property consisting of the passed keyValuePair. Examples toObject ( ['firstName', 'David']); toObject ( ['isCool', true]); toObject ( ['emplover', 'LearningFuze']); // -> { firstName: "David" } //→> { isCool: true } // > { employer: "LearningFuze"

toObject (keyValuePair) Parameters • keyValuePair - An Array containing two elements; a string key and any other JavaScript value. Return Value • An object with one property consisting of the passed keyValuePair. Examples toObject ( ['firstName', 'David']); toObject ( ['isCool', true]); toObject ( ['emplover', 'LearningFuze']); // -> { firstName: "David" } //→> { isCool: true } // > { employer: "LearningFuze"

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 1GZ

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Library class: Fields: books as arraylist to store all the books available in the library B3 B1 B2 В4 B5 Constructor: Library() } : No parameterized constructor to create the books object Methods: 1. addBook(Book bookobj): to add a new book to the arraylist; send the book object as a parameter to this method. 2. searchBook(String name): search a book by a given name in the arraylist. if exits print bookX found; otherwise print not found!!! 3. RemoveBook(String name): to delete a book object from arraylist by a given name: Hint: you need to use iterator class and remove method. Book class: Fileds: bookld, bookname. Constructor: two parameterized constructor that accepts name a parameter Book(int ID, String name) ..... Methods: 1. Accessor method to return the name of the book 2. Mutator method to change the id of the book. Use this Main method: in your program: public static void main(String args[]) { Library lib=new Library(); lib.addBook(new Book("b1")); lib.addBook(new Book("b2"));…
Java Program Fleet class- reading from a file called deltafleet.txt-Using file and Scanner Will be creating a file called newfleet.txt Instance Variables:o An array that stores Aircraft that represents Delta Airlines entire fleeto A variable that represents the count for the number of aircraft in the fleet• Methods:o Constructor- One constructor that instantiates the array and sets the count to zeroo readFile()- This method accepts a string that represents the name of the file to beread. It will then read the file. Once the data is read, it should create an aircraft andthen pass the vehicle to the addAircraft method. It should not allow any duplicationof records. Be sure to handle all exceptions.o writeFile()- This method accepts a string that represents the name of the file to bewritten to and then writes the contents of the array to a file. This method shouldcall a sort method to sort the array before writing to it.o sortArray()- This method returns a sorted array. The array is…
1. Dummy GUI Application by Codechum Admin A GUI Application is an application that has a user interface that the user can interact with. For this program, we will be simulating this behavior. First, implement another class called Checkbox which implements the Clickable interface which has only one method: public void click(). The Checkbox will have the following properties: private boolean isChecked (defaults to false upon the creation of object) private String text Additionally, it should have the following methods: the implementation of the click() method If the isChecked is currently false, this will set the isChecked to true and will then print the message "Checkbox is checked". If it is currently true, this will set the isChecked to false and will then print the message "Checkbox is unchecked". Note that the messages to be printed should have also print a new line at the end. an override of the toString() method which returns the message: "Checkbox ({text} - Clicked…
A class object can encapsulate more than one [answer].
Rectangle Object Monitoring Create a Rectangle class that can compute the total area of all the created rectangle objects using static fields (variables). Remember that a Rectangle has two attributes: Length and Width. Implement the class by creating a computer program that will ask the user about three rectangle dimensions. The program should be able to display the total area of the three rectangle objects. For this exercise, you are required to apply all OOP concepts that you learned in class. Sample output: Enter Length R1: 1 Enter Width R1: 1 Enter Length R2: 2 Enter Width R2: 2 Enter Length R3: 3 Enter Width R3: 3 The total area of the rectangles is 14.00 Note: All characters in boldface are user inputs.
class TicTacToePlayer: # Player for a game of Tic Tac Toe def __init__(self, symbol, name): self.symbol = symbol self.name = name def move(self, board): move = int(input(self.name + " make your move 1-9:")) move -= 1 y = move % 3 x = move // 3 board[x][y] = self.symbol def is_symbol(self, symbol): if symbol == self.symbol: return True class TicTacToe: # Game of TicTacToe in a class! def __init__( self, p1_symbol="X", p2_symbol="O", p1_name="Player1", p2_name="Player2" ): self.p1 = TicTacToePlayer(p1_symbol, p1_name) self.p2 = TicTacToePlayer(p2_symbol, p2_name) self.board = [[" " for x in range(3)] for x in range(3)] def play_game(self): turn = 0 winner_symbol = False while not winner_symbol: self._print_board() if turn % 2: self.p2.move(self.board) # replace this line with a call…
Sultan Qaboos University Department of Computer Science COMP2202: Fundamentals of Object Oriented Programming Assignment # 2 (Due 5 November 2022 @23:59) The purpose of this assignment is to practice with java classes and objects, and arrays. Create a NetBeans/IntelliJ project named HW2_YourId to develop a java program as explained below. Important: Apply good programming practices: 1- Provide comments in your code. 2- Provide a program design 3- Use meaningful variables and constant names. 4- Include your name, university id and section number as a comment at the beginning of your code. 5- Submit to Moodle the compressed file of your entire project (HW1_YourId). 1. Introduction: In crowded cities, it's very crucial to provide enough parking spaces for vehicles. These are usually multistory buildings where each floor is divided into rows and columns. Drivers can park their cars in exchange for some fees. A single floor can be modeled as a two-dimensional array of rows and columns. A…
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1. Square Roots Create a class with a method that, given an integer, returns an array of double-precision floating point numbers (known in Java as double), each of which is a square root of a number between 2 and the parameter to the method. For example, if the parameter is 5, the method should return an array of 4 doubles, with approximate values 1.4142135623, 1.7320508075, 2.0, and 2.2360679774. Your method should check the validity of the parameter, and take appropriate action if the parameter is invalid. 2. Reading Files Create a class with a method that, given a string representing a file name, returns an integer with the number of characters in the file. For example, if the file has 10 characters, your method must return the number 10. 3. Main Class Create a class HW1.java with a main method that does both of the following: calls the method from part 1 with a random integer between 0 and 10, and prints each of the numbers in the result. The numbers should all be printed on the…
in C# Create a Bank class with the following properties: List of bank accounts (List<BankAccount>) Create the following methods in the Bank class: AddAccount(BankAccount account): Method to add a new bank account to the list of accounts RemoveAccount(string accountNumber): Method to remove an existing bank account from the list of accounts SearchAccount(string accountNumber): Method to search for an existing bank account and return the account details my code is // This class represents a bank, which has a list of BankAccount objects as one of its properties. public class Bank { // This property holds a list of BankAccount objects belonging to the bank. public List<BankAccount> Accounts { get; set; } // This constructor initializes the list of accounts for the bank. public Bank() { Accounts = new List<BankAccount>(); } // This method adds a new BankAccount object to the bank's list of accounts. public void…
JavaFX Programming Using Scenebuilder with eclipse or another ide code this in JAVA code this program 02 - Rational GUI: Using the Rational class code from Lab 4, create a GUI which allows you to add, subtract, multiply, and divide Rational numbers by entering the numerator and denominator in separate fields. The results should also be displayed in two separate fields. public class Rational { // data private int num; private int den; // constructors /** * Constructs a Rational from a numerator and denominator * * @param n the numerator * @param d the denominator */ public Rational(int n, int d){ if (d==0) { System.out.println("Cannot divide by 0"); d=1; } num = n; den = d; simplify(); } /** * Constructs a Rational from an integer * * @param i the integer. numerator=i, denominator = 1. */ public Rational(int i) { this(i, 1); } // selectors /** * gets numerator * * @return numerator */ public int getNumerator(){ return num; } /** * gets denominator * * @return denominator */…
N-SIDED REGULAR POLYGON) In an n-sided regular polygon, all sides have the same length and all angles have the same degree (i.e., the polygon is both equilateral and equiangular). Design a class named RegularPolygon that contains: ▪ A private int data field named n that defines the number of sides in the polygon with default value 3. ▪ A private double data field named side that stores the length of the side with default value 1. A private double data field named x that defines the x-coordinate of the polygon's center with default value 0. ▪ A private double data field named y that defines the y-coordinate of the polygon's center with default value 0. A no-arg constructor that creates a regular polygon with default values. A constructor that creates a regular polygon with the specified number of sides and length of side, centered at (0, 0). A constructor that creates a regular polygon with the specified number of sides, length of side, and x- and y-coordinates. ▪ The accessor and…