For the object below, Object.keys(employee) would return an array containing how many elements? } const employee = { name: "Joe", 06 00 04 department: "Sales", emergencyContact: { name: "Jean", contact Info: { }, } O I don't know phone: 212-555-2151', email: jeanx@gmail.com' salary: 65000

This class will allow a user to enter 5 scores into an array. It will then rearrange the datain descending order and calculate the mean for the data set.Attributes: data[]— the array which will contain the scores mean — the arithmetic average of the scoresMethods: Average — the constructor. It will allocate memory for the array. Use a forloop to repeatedly display a prompt for the user which should indicate that userCopyright © 2019 Pearson Education, Inc., Hoboken NJshould enter score number 1, score number 2, etc. Note: The computer startscounting with 0, but people start counting with 1, and your prompt should accountfor this. For example, when the user enters score number 1, it will be stored inindexed variable 0. The constructor will then call the selectionSort and thecalculateMean methods. calculateMean — this is a method that uses a for loop to access each scorein the array and add it to a running total. The total divided by the number ofscores (use the length of the array),…

Please create a Java class that has the following data attributes and methods:   private int count - number of customers in the array    private customer Record[] data - array of customerRecord objects   public customer List() constructor that should initialize memory for data array and count value    public void getCustomerList(String fileName) - reads a file call fileName which is a text file containing lines (records) of customer data. This method fills the data array with the records from the file. The file will not have more than 100 records and will have the following format (where customer Number is an integer, firstName and lastName are Strings, and balance is a float:   customerNumber             firstName             lastName balance   public customerRecord getCustomer(int customerNumber) - returns the object corresponding to the customer with customerNumber. If the customer number is not in the array, return null.   public void enter CustomerRecord(customerRecord new_record)…

Write an application (including algorithm) that uses a class called “Book” (seedetails below). The application must perform the following tasks. Create an array of “Book” objects (i.e., array must be able to store 2books). Create 2 “Book” objects initialized as follows.o title = “C++ Textbook”; Author = “Pete Parker”; Publisher =“Cengage”, ISBN = “0123456789”; subject = “Computer Programming”;o title = “Java Textbook”; Author = “Bruce Wayne”; Publisher = “McGrawHill”, ISBN = “9876543210”; subject = “Computer Programming”; Add the two books to the array.o Assume the two publishers have merged into a new company called“BookConglomerate”. Use a loop to create statements to modify thepublisher field with the new publisher name. Display the following information for both bookso Book Title (i.e., “C++ Textbook” or “Java Textbook”)o Authoro Publishero ISBNo SubjectThe Book class must contain the following. Constructor with parameters that initialize all instance variables title, author,…

class Student: def _init_(self, firstname, lastname, idnum): self.first = firstname self.last = lastname self.id = idnum self.courses = [] def add_course(self, course): ''' don't allow overloads or signing up for the same course twice if course not in self.courses and len(self.courses) = 4 What are all of the attributes of this class? last overload idnum add_course self first course firstname courses id clear_courses lastname

class Book: book_belongs_to = 'Schulich School of Engineering' def _init_(self, pages = 0, title = 'Unknown', author = 'Unknown', isbn = self.pages = pages self.title = title e): self.author = author self.isbn = isbn book1 = Book(255, 'Black Beauty', 'Anna Sewell', 9780001840423) book2 = Book(208, 'The Chrysalids', 'John Wyndham', 9780140013085) Book.book_belongs_to = 'Emily Marasco' book3 = Book()

please write in java

The following array of structures is used to hold data of your IPC144 grade center   strcut grades {char name[101]; unsigned final; unsigned total;} struct grades myClass[25];     Write a function that gets the class grades array as a parameter and prints the list of people who passed the course (a student passes a course if he/she passes the final as well as the total) and their total mark. The function should also print the class average at the end (based on the total marks)   void printPassedAverage(struct grades myClass, int size)   The output should be like this   Students passed:--------------------- John Smith      85 Jane Doe         65 Roy Crowe      80 Julia Stuart      55 Rob Gates       60   Class average: 69

my js code: // Define arrays for income and expenses let income = [ { name: 'Salary', amount: 4000, recurring: true }, { name: 'Freelance Work', amount: 1000, recurring: false }, { name: 'Gift', amount: 50, recurring: false }, { name: 'Bonus', amount: 500, recurring: true }, { name: 'Investment Income', amount: 200, recurring: true } ];   let expenses = [ { name: 'Rent', amount: 1500, recurring: true }, { name: 'Groceries', amount: 350, recurring: true }, { name: 'Utilities', amount: 200, recurring: true }, { name: 'Transportation', amount: 100, recurring: true }, { name: 'Entertainment', amount: 50, recurring: false } ];   // Function to display the income list function displayIncome() { let table = document.createElement('table'); let totalIncome = 0;   for (let i = 0; i < income.length; i++) { let row = document.createElement('tr'); let nameCell = document.createElement('td'); nameCell.textContent = income[i].name; let amountCell = document.createElement('td');…