Which of the following code is used to check the web worker object is exists or o the web worker object is not exists it will create a new web worker. a. wObi = new Worker("testWorkerFile. js"); if (typeof(wObi) == "undefined") alert("Web worker is created successfully') b. if (typeof(wobj) "undefined") { wObj = new Worker("testWorkerFile. js"); c. wobi = new Worker("testWorkerFile. js"); if (typeof(wobi) == Worker) alert(“Web worker is created successfully") else wObj = new Worker("testWorkerFile. js"); d. wObi = new Worker("testWorkerFile. js"); if (typeof(wobj) == "undefined") alert(“Web worker is created successfully") else { WObi = new Worker("testWorkerFile. js");

Which of the following code is used to check the web worker object is exists or o the web worker object is not exists it will create a new web worker. a. wObi = new Worker("testWorkerFile. js"); if (typeof(wObi) == "undefined") alert("Web worker is created successfully') b. if (typeof(wobj) "undefined") { wObj = new Worker("testWorkerFile. js"); c. wobi = new Worker("testWorkerFile. js"); if (typeof(wobi) == Worker) alert(“Web worker is created successfully") else wObj = new Worker("testWorkerFile. js"); d. wObi = new Worker("testWorkerFile. js"); if (typeof(wobj) == "undefined") alert(“Web worker is created successfully") else { WObi = new Worker("testWorkerFile. js");

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter4: More Object Concepts

Section: Chapter Questions

Problem 11PE

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code to check the web worker object is exit nr not
Servlets do the processing on the server side and the browser is used on client side to send requests and receive responses. Java Programming. You are required to create a client registration form that has the following attributes: Student number, Name, Last name, Gender, and program. A user will enter the data onto the form and send it to the server. The servlet will accept the data and echo it back as shown below. Use POST method so that the data entered in the input fields does not show on the URL bar.
class User:def __init__(self, first_name, last_name, user_id, last_login, password):self.first_name = first_nameself.last_name = last_nameself.user_id = user_idself.last_login = last_loginself.password = passworddef describe_user(self):print(f"Accessing user {self.user_id}:")print(f"{self.first_name} {self.last_name} last logged in on {self.last_login}")def greet_user(self):print(f"Welcome to the jungle {self.first_name} {self.last_name}, you gonna die") Hard-code # hard-coded calls jim = User(first_name='Jim',last_name='Bob',user_id=1000,last_login='June 12, 1998',password='password123')jim.describe_user()jim.greet_user()joe = User('Joe','Bob',1001,'July 4, 2001','babygirl')joe.greet_user()joe.describe_user()joe.new_login(2, 3, 2025)joe.describe_user()joe.new_login(15, 3, 2025)joe.new_login(2, 35, 2025)joe.new_login(2, 3, -55)
class User:def __init__(self, first_name, last_name, user_id, last_login, password):self.first_name = first_nameself.last_name = last_nameself.user_id = user_idself.last_login = last_loginself.password = passworddef describe_user(self):print(f"Accessing user {self.user_id}:")print(f"{self.first_name} {self.last_name} last logged in on {self.last_login}")def greet_user(self):print(f"Welcome to the jungle {self.first_name} {self.last_name}, you gonna die")def new_login(self, month, day, year):if month < 1 or month > 12:print("That is not a valid month")returnif day < 1 or day > 31:print("That is not a valid day")returnif year < 0:print("That is not a valid year")returnmonths = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]month_name = months[month-1]self.last_login = f"{month_name} {day}, {year}" Hard-Code: # hard-coded callsjim =…
how to code this in java? Task Class Requirements The task object shall have a required unique task ID String that cannot be longer than 10 characters. The task ID shall not be null and shall not be updatable. The task object shall have a required name String field that cannot be longer than 20 characters. The name field shall not be null The task object shall have a required description String field that cannot be longer than 50 characters. The description field shall not be null.
function removeErrMsgs() { var errMessages = document.getElementsByClassName('msg');for (let msg of errMessages) {msg.innerHTML = "";}}function validateValues() {var toBeReturned = true;removeErrMsgs();var fname = document.getElementById("fname").value;if (fname.length > 30) {document.getElementsByClassName('msg')[0].innerHTML = "First name can not be longer than 30 characters";toBeReturned = false;} var lname = document.getElementById("lname").value;if (lname.length > 30) {document.getElementsByClassName('msg')[1].innerHTML = "Last name can not be longer than 30 characters";toBeReturned = false;} var phone = document.getElementById('num').value;if (phone.length > 8) {document.getElementsByClassName('msg')[2].innerHTML = "Phone number can not be greater than 8 numbers";toBeReturned = false;} var items = document.getElementById('items').value;if (items > 4 || items < 2) {document.getElementsByClassName('msg')[3].innerHTML = "Item numbers should be between 1 and…
Purpose To review interfaces Directions Your task for this lab is to implement and test a class to store ratings of items. Your Rating class should have the following fields and methods: private double sumOfRatings - the sum of all of the ratings private int raters - the number of people who have rated an item public Rating () initialize both fields to zero public Rating (double sumofRatings, int raters) - initialize the fields to the parameter values public void addRating (double newRating) - increase the sumOfRatings by newRating and increase the number of raters by one public double getAverageRating () return the average rating; if there are no raters so far, return 0.0 public String toString() - display the average rating and how many reviews it is based on; for example, if the sum of the ratings is 32 and that is based on ratings from ten people, the toString method will return "3.2 based on 10 reviews"
Overview: A new bank wants to make a simple application to keep track of all accounts and transactions. it is required to help the bank manager implement the required application. Requirements: After a quick meeting with the bank manager, you got the following information: • tis required to store all bank accounts in one collection and all the transactions happened in another collection. Each account has a unique account number, a holder and balance. There is a specific prefix (common for all accounts) that should be added to the holder's civil id to create the unique account number. In addition, it is not allowed for a holder to have more than one account. Furthermore, only three transactions are allowed on any account: deposit, withdrawal and transfer money to another account. • Each holder has a unique civil ID (national id), a name and other attributes (add at least 2 attributes from your choice). • For each transaction, it is required to store the account(s) affected, amount of…
Page < 32 of 41 You can override a private method defined in a subclass. (True/False)? ZOOM +
When you want to work with an object, you use a variable that holds a special value known as a(n) __________ to link the variable to the object. a. union b. reference c. object linker d. data coupling
A field has access that is somewhere between public and private. static final Opackage Oprotected
Object Oriented Programming: 213COMP, 214COMP (Feb-2022) Assignment- I [10 marks] Academic honesty: O Only pdf file accepted & student ID, will be your upload file. O Student who submit copied work will obtain a mark of zero. O Late work or attach file by email message not allowed. Q1: Write the signature for a method that has one parameter of type String, and does not return a value. Q2: Write the signature for a method that has two parameters, both of type Student, and returns an int value. Q3: Write the constructor's headers of the followings? new Student (202101156, “Ahmed"); new Address(51, "jazan university","CS&IT" ); new Grade(true, 505235600, 4.5); Q4: a) Write a class Student that define the following information: name, stid , age. b) Explain a mutators (setters) and accessors(getters) methods for each attributes(fields). c) Add three constructors: • with empty constructor. one parameter constructor (name of student) two parameters constructor (name and stid) d) Create two…