class Widget: """A class representing a simple Widget Instance Attributes (the attributes of this class and their types) name: the name of this Widget (str) cost: the cost of this Widget (int); cost >= 0 Sample Usage (to help you understand how this class would be used) >> my_widget = Widget('Puzzle', 15) >>> my_widget.name 'Puzzle' >> my_widget.cost 15 >> my_widget.is_cheap() False >> your_widget = Widget("Rubik's Cube", 6) >> your_widget.name "Rubik's Cube" %3D >> your_widget.cost 6. >> your_widget.is_cheap() True II II II

The Factory method design pattern is useful since it can be used to create new objects of a particular type dynamically. True False

write the definition of a class Player containing: an instance variable name of type string, initialized to the empty string an instance variable score of type int, initialized to 0 a method called set_name that has one parameter, whose value it assigns to the instance variable name a method cale set_score that has one parameter, whose value it assigns to teh instance variable score a method called get_name that has no parameters and that returns the value of the instance variable name a method called get_score that has no parameters and that returns the value of the instance variable score no constructor need to be defined using python

Implement the inventory manager class. This class must have methods that do the following: Add a new item to the inventory manager. Remove an item from the inventory manager. Re-stock an item in the inventory manager. Display the items in the inventory manager. Search for an item in the inventory manager by at least two criteria (name, price, quantity, etc.). Part 3: Test the inventory manager class with a driver program or unit tests. This may be a console application.

Create a Point class to hold x and y values for a point. Create methods show(), add() and subtract() to display the Point x and y values, and add and subtract point coordinates. Create another class Shape, which will form the basis of a set of shapes. The Shape class will contain default functions to calculate area and circumference of the shape, and provide the coordinates (Points) of a rectangle that encloses the shape (a bounding box). These will be overloaded by the derived classes; therefore, the default methods for Shape will only print a simple message to standard output. Create a display() function for Shape, which will display the name of the class and all stored information about the class (including area, circumference and bounding box). Build the hierarchy by creating the Shape classes Circle, Rectangle and Triangle. Search the Internet for the rules governing these shapes, if necessary. For these three Shape classes, create default constructors, as well as constructors...

Create a subclass named Square from the superclass GeometricObject. Create an instance variable named width with initial value 0. Create a no-arg constructor. Create the another constructor, which has one parameter named wid. Assign the wid to the instance variable named width. Create the getWidth() method, the setWidth() method. Override the getArea() method. Override the getPerimeter() method. Create a test class named Test to create an instance with wid= 6 from Square class. Call the getArea() and getPermeter() methods to print out the area and perimeter of the square with width=6.

JAVA QUESTION REQUIRES SEPARATE CLASSES, CANNOT BE WRITTEN IN ONE MAIN METHOD E.G. ACCOUNT SECTION WRITTEN IN ACCOUNT CLASS, CUSTOMER SECTION WRITTEN IN CUSTOMER CLASS ETC. Phase 2 In this phase you’ll be writing code within the methods of your classes to make the tests pass. Account Each account should have a constant, unique id. Id numbers should start from 1000 and increment by 5. The ACCOUNT_ID attribute should be initialised when the account object is created. The id should be generated internally within the class, it should not be passed in as an argument. The deposit method should increase the balance by the value passed in as an argument. The withdraw method should reduce the balance by the value passed in as an argument. It should return the value of the argument The account should be able to go overdrawn The correctBalance method should change the balance to match the value passed in as an argument. Testing your code for Account Run TestAccountInitialisation to check...

Number 11

Create a class Course, which has one field: String courseName Create the constructor, accessor, and mutator for the class. Then, in the main method of this class, create an instance of the class with the name "CST1201". Write an equivalent while statement to replace the following for statement for (int i=2; i<100; i=i+2) { System.out.println(i); }

Python

Design a class called Stopwatch. The job of this class is to simulate a stopwatch. It should provide two methods: Start and Stop. We call the start method first, and the stop method next. Then we ask the stopwatch about the duration between start and stop. Duration should be a value in TimeSpan. Display the duration on the console. We should also be able to use a stopwatch multiple times. So we may start and stop it and then start and stop it again. Make sure the duration value each time is calculated properly. We should not be able to start a stopwatch twice in a row (because that may overwrite the initial start time). So the class should throw an InvalidOperationException if its started twice. 1

Create a class Person to represent a person according to the following requirements: A person has two attributes: id Add a constructer to initialize all the attributes to specific values. Add all setter and getter methods. Create a class Product to represent a product according to the following requirements: A product has four attributes: a reference number (can’t be changed) a price an owner (is a person) a shopName (is the same for all the products). Add a constructer without parameters to initialize all the attributes to default values (0 for numbers, "" for a string and null for object). Add a second constructer to initialize all the attributes to specific values. Use the keyword "this". Add the method changePrice that change the price of a product. The method must display an error message if the given price is negative. Add a static method changeShopName to change the shop name. Add all the getter methods. The method getOwner must return an owner. Create the class...

1. Design a new Triangle class that extends the abstract GeometricObject class. Write a test program that prompts the user to enter three sides of the triangle, a color, and a Boolean value to indicate whether the triangle is filled. The program should create a Triangle object with these sides and set the color and filled properties using the input. The program should display the area, perimeter, color, and true or false to indicate whether it is filled or not.