Write the classes as shown in the following class diagram. Add a tester where you make an array of 5 person and ask the user to enter them. Then loop over the array and print them. The user may enter a Student, a Staff or even a Person. The ‘-‘ symbol means private field or method and ‘+’ means public. The classes Student and Staff inherit from Person

Modify the Car class example and add the following:  A default constructor that initializes strings to “N/A” and numbers to zero.  An overloaded constructor that takes in initial values to set your fields (6 parameters). accel() method: a void method that takes a double variable as a parameter and increases the speed of the car by that amount. brake() method: a void method that sets the speed to zero.  To test your class, you will need to instantiate at least two different Car objects in the main method in the CarDemo class.  Each of your objects should use a different constructor. For the object that uses the default constructor, you will need to invoke the mutator methods to assign values to your fields. Invoke the displayFeatures() method for both objects and display the variables.  Demonstrate the use of the accessor method getColor() by accessing the color of each car and printing it to the console.  Use the method accel to increase the speed of the first car by 65 mph.  Use…

Write a program in Java that handles the order list for an online retailer. Your program should contain a minimum of three classes: Order Class Display Class Main Class Create a Order Class that uses a queue to hold the orders in the order they were taken. The queue should contain the customer last name, order number, and order total cost. Create a Display Class that will store a copy of the order queue in two arrays. Each array will contain the order list but one will be sorted by name and the other sorted by order number. When a order is taken and stored in the Order Class the program will update theDisplay Class arrays automatically sort them in descending order using quick sort and outputs the the contents to the console upon each entry of new data. Create a Main Class that will handle operator data input and when an order is added or removed, the program will update the Order Class and Display Class. The user will be presented a menu to add a order, remove a order and display…

Implement a nested class composition relationship between any two class types from the following list: Advisor Вook Classroom Department Friend Grade School Student Teacher Tutor Write all necessary code for both classes to demonstrate a nested composition relationship including the following: a. one encapsulated data member for each class b. inline default constructor using constructor delegation for each class c. inline one-parameter constructor for each class d. inline accessors for all data members e. inline mutators for all data members

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)

The total  cost of a group of  items at  a grocery store is based on the sum of the individual product prices and the tax (which is 5.75%).  Products that are considered  “necessities”    are not taxed, whereas products that  are  considered  “luxuries” are.        The Product class is abstract,  and it  has a method called getTotalPrice. Your task is to create two subclasses of Product: NecessaryProduct and LuxuryProduct and implement the getTotalPrice method in  each of these classes appropriately. Then modify  the driver program to instantiate four products (two necessary and two luxury)  and  store  them in the product array, print out each item in the array,  and  display the total cost of the items. You should not make any changes at all to Product.java, and you should only add  to ShoppingTripStartingCode.java. Do not change any code that is already present           Example(Cheese    and    bread    are    necessities    and    soda    and    candy    are    luxuries)Cheese…

Can you please help me with this, its in java. Thank you.   Write classes in an inheritance hierarchy Implement a polymorphic method Create an ArrayList object Use ArrayList methods For this, please design and write a Java program to keep track of various menu items. Your program will store, display and modify salads, sandwiches and frozen yogurts. Present the user with the following menu options: Actions: 1) Add a salad2) Add a sandwich3) Add a frozen yogurt4) Display an item5) Display all items6) Add a topping to an item9) QuitIf the user does not enter one of these options, then display:Sorry, <NUMBER> is not a valid option.Where <NUMBER> is the user's input.   All menu items have the following: Name (String) Price (double) Topping (StringBuilder or StringBuffer of comma separated values) In addition to everything that a menu item has, a main dish (salad or sandwich) also has: Side (String) A salad also has: Dressing (String) A sandwich also has: Bread type…

Java - Car Value (Classes)

JAVA PROGRAM Chapter 7. PC #1. Rainfall Class Write a RainFall class that stores the total rainfall for each of 12 months into an array of doubles. The program should have methods that return the following: • the total rainfall for the year • the average monthly rainfall • the month with the most rain • the month with the least rain Demonstrate the class in a complete program. Main class name: RainFall (no package name)   HERE IS  A WORKING CODE, PLEASE MODIFY THIS CODE SO THE PUBLIC CLASS IS MAIN AND WERE EVER THERE IS MAIN IN THE CHANGE IT SO IT RUNS. ALSO, MAKE SURE WHEN I UPLOAD THE CODE TO HYPERGRADE IT PASSES ALL THE TEST CASES. THANK YOU   import java.util.Scanner;public class Main {        private double[] rainfall = new double[12];    public Main(double[] rainfall) {        this.rainfall = rainfall;    }    public double getTotalRainfall() {        double total = 0.0;        for(double rain : rainfall) {            total += rain;        }…

Implement the following parking permit class using java It has a dependency on the car class, no need to implement the car class. Use the diagram for refrence