A constructor that takes the user's ID. If the ID is null, or * longer than 32 characters, or it does not start with "@", * throw an IllegalArgumentException. * The ID may contain any ASCII characters, so you don't have to * worry about checking for special characters. Also do not worry * about checking whether any other user has the same ID. * * All other instance variables should be initialized appropriately.

In Java Write a Fraction class that implements these methods:• add ─ This method receives a Fraction parameter and adds the parameter fraction to thecalling object fraction.• multiply ─ This method receives a Fraction parameter and multiplies the parameterfraction by the calling object fraction.• print ─ This method prints the fraction using fraction notation (1/4, 21/14, etc.)• printAsDouble ─ This method prints the fraction as a double (0.25, 1.5, etc.)• Separate accessor methods for each instance variable (numerator , denominator ) in theFraction classProvide a driver class (FractionDemo) that demonstrates this Fraction class. The driver class shouldcontain this main method : public static void main(String[] args) { Scanner stdIn = new Scanner(System.in); Fraction c, d, x; // Fraction objects System.out.println("Enter numerator; then denominator."); c = new Fraction(stdIn.nextInt(), stdIn.nextInt()); c.print(); System.out.println("Enter numerator; then denominator."); d = new...

a- Write a class definition for Student containing the following instance variables and methods: b- Create an object of this class c- Call the method to calculate and set average_test d- Print average test self. name self. test1 self. test2 self. average test A constructor to accept name, test1 and test2 as parameters and assign them to instant variables. A method to calculate and set averave test (each test worth 50%) A method to get average_test

Please!!

***Needs to be written in Java*** Create a console (standaline) application. The program will allow you to select MegaMillion numbers. For the first 5 names, you will be requested to enter a number that is greater than zero and less than 76 since the first 5 numbers on the MegaMillion lottery must be between 1 and 75. Each of the 5 numbers must be different. Program needs to have multiple classes. One class must include the accessor/mutator methods, a readInput() method and a writeOutput() method. Name this first program "MegaMillion.java" The values of the first 5 numbers have to be saved within an array. The 1st element of the array will equal the 1st number enter, the 2nd element of the array will equal the second number entered, etc... However, the number entered is not to be added to the array unless it's both unique from the other numbers enter, and it also falls within the correct range of numbers The second program has to be named "MegaMillionTest.java" and will be responsible...

Having trouble when I run this python program. I'm being told that the "Test Failed: 'Employee' object has no attribute 'get_name'" and "Test Failed: 'Employee' object has no attribute '_name'" The assignment is below, and my code is at the bottom. Please help me spot these errors and understand them. Thanks. Write a class named Employee that has **private** data members for an employee's name, ID_number, salary, and email_address. It should have an init method that takes four values and uses them to initialize the data members. It should have get methods named get_name, get_ID_number, get_salary, and get_email_address.Write a separate function (not part of the Employee class) named **make_employee_dict** that takes as parameters a list of names, a list of ID numbers, a list of salaries and a list of email addresses (which are all the same length). The function should take the first value of each list and use them to create an Employee object. It should do the same with the second...

For the 8 Java statements below, identify each of the following statements as legal or illegal, and whether legal or not, state whether it represents a "narrowing" or "widening" conversion, or neither. Don't forget to identify the last statement at the very bottom, Member m = new BoardMember();, as legal or illegal and widening or narrowing conversion.

can you please writein scanner form and can you please make it so i can copy and past it /** Rectangle class, phase 5 */ public class Rectangle { private double length; private double width; /** Default Constructor */ public Rectangle() { // length = 1; // width = 1; } /** Constructor @param len The length of the rectangle. @param w The width of the rectangle. */ public Rectangle(double len, double w) { length = len; width = w; } /** The setLength method stores a value in the length field. @param len The value to store in length. */ public void setLength(double len) { length = len; } /** The setWidth method stores a value in the width field. @param w The value to store in width. */ public void setWidth(double w) { width = w; } /** The getLength method returns a Rectangle object's length. @return The value in the length field. */ public double getLength() { return length; } /** The getWidth method returns a Rectangle object's width. @return The value in the width field. */ public...

In Java Write a Fraction class that implements these methods:• add ─ This method receives a Fraction parameter and adds the parameter fraction to thecalling object fraction.• multiply ─ This method receives a Fraction parameter and multiplies the parameterfraction by the calling object fraction.• print ─ This method prints the fraction using fraction notation (1/4, 21/14, etc.)• printAsDouble ─ This method prints the fraction as a double (0.25, 1.5, etc.)• Separate accessor methods for each instance variable (numerator , denominator ) in theFraction classProvide a driver class (FractionDemo) that demonstrates this Fraction class. The driver class shouldcontain this main method : public static void main(String[] args) { Scanner stdIn = new Scanner(System.in); Fraction c, d, x; // Fraction objects System.out.println("Enter numerator; then denominator."); c = new Fraction(stdIn.nextInt(), stdIn.nextInt()); c.print(); System.out.println("Enter numerator; then denominator."); d = new...

Program - Python Make a class.The most important thing is to write a simple class, create TWO different instances, and then be able to do something. For example, create a pizza instance for Suzie, ask her for the toppings from the choices, and store her pizza order. Then create a second pizza instance for Larry, ask for his toppings and store his pizza order. Then print both of their orders back out. You do not need to make your class very complicated. (Shouldn't be the pizza example but something similar)

In python and include doctring: First, write a class named Movie that has four data members: title, genre, director, and year. It should have: an init method that takes as arguments the title, genre, director, and year (in that order) and assigns them to the data members. The year is an integer and the others are strings. get methods for each of the data members (get_title, get_genre, get_director, and get_year). Next write a class named StreamingService that has two data members: name and catalog. the catalog is a dictionary of Movies, with the titles as the keys and the Movie objects as the corresponding values (you can assume there aren't any Movies with the same title). The StreamingService class should have: an init method that takes the name as an argument, and assigns it to the name data member. The catalog data member should be initialized to an empty dictionary. get methods for each of the data members (get_name and get_catalog). a method named add_movie that takes a Movie...

Which of the following statements is false? a. A class can contain only one constructor. b. An example of a behavior is the SetTime method in a Time class. c. An object created from a class is referred to as an instance of the class. d. An instance of a class is considered an object.

I already have the code for the assignment below, but the code has an error in the driver class. Please help me fix it. The assignment: Make a recursive method for factoring an integer n. First, find a factor f, then recursively factor n / f. This assignment needs a resource class and a driver class. The resource class and the driver class need to be in two separate files. The resource class will contain all of the methods and the driver class only needs to call the methods. The driver class needs to have only 5 lines of code The code of the resource class: import java.util.ArrayList;import java.util.List; public class U10E03R{ // Recursive function to // print factors of a number public static void factors(int n, int i) { // Checking if the number is less than N if (i <= n) { if (n % i == 0) { System.out.print(i + " "); } // Calling the function recursively // for the next number factors(n, i +...