A InventoryOnShelf object will contain two private fields, itemOnShelflist, an array of (up to 5) ItemOnShelf objects, and size, an integer to keep track of the number of ItemonShelf objects held in the InventoryOnShelf object, and should contain the following methods: • public InventoryOnShelf() //constructor to create new empty InventoryOnShelf object (containing an empty array of ItemOnSelf[5] null objects & size = 0).

Python:Please read the following. The Game class The Game class brings together an instance of the GameBoard class, a list of Player objects who are playing the game, and an integer variable "n" indicating how many tokens must be aligned to win (as in the name "Connect N"). The game class has a constructor and two additional methods. The most complicated of these, play, is provided for you and should not be modified. However, you must implement the constructor and the add_player method. __init__(self,n,height,width) The Game constructor needs to initialize three instance variables. The first, self.n, simply holds the integer value "n" provided as a parameter. The second, self.board, should be a new instance of the GameBoard class (described below), built using the provided height and width as dimensions. The third, self.players, should be an initially empty list. add_player(self,name,symbol) The add_player method is provided a name string and a symbol string. These two values should be...

Write a C#program that uses a class called ClassRegistration as outlined below: The ClassRegistration class is responsible for keeping track of the student id numbers for students that register for a particular class. Each class has a maximum number of students that it can accommodate. Responsibilities of the ClassRegistration class: It is responsible for storing the student id numbers for a particular class (in an array of integers) It is responsible for adding new student id numbers to this list (returns boolean) It is responsible for checking if a student id is in the list (returns a boolean) It is responsible for getting a list of all students in the class (returns a string). It is responsible for returning the number of students registered for the class (returns an integer) It is responsible for returning the maximum number of students the class is allowed (returns an integer) It is responsible for returning the name of the class. (returns a string) ClassRegistration -...

USING JAVA: Part A) Implement a superclass Appointment and subclasses Onetime, Daily, and Monthly. An Appointment has a description (for example, "See the dentist") and a date. Write a method, occuresOn(int year, int month, int day) The check whether the appointment occurs on that date. For example, for appointment, you must check whether the day of the month matches. This fill an array of Appointment objects with a mixture of appointments. Have the user enter a date and print out all appointments that occur on that date. Part B) Improve the appointment book by giving the user the option to add new appointments. The user must specify the type of the appointment, the description, and the date.

This is a subclass and doesn't has a main method yet. class Vector{Object items[];int length;int size; void Grow(){// Duplicate sizesize = size * 2; // Allocate new itemsObject new_items[] = new Object[size]; // Copy old itemsfor (int i = 0; i < length; i++)new_items[i] = items[i]; // Discard old itemsitems = new_items; // MessageSystem.out.println("Growing capacity to " + size + " elements");} public Vector(){size = 2;items = new Object[2];} public void Print(){// MessageSystem.out.println("Content:"); // Traversefor (int i = 0; i < length; i++)System.out.println(items[i]);} public void Insert(int index, Object item){// Check indexif (index < 0 || index > length){System.out.println("Invalid index");return;} // Grow if necessaryif (length == size)Grow(); // Shiftfor (int i = length - 1; i >= index; i--)items[i + 1] = items[i]; // Insertitems[index] = item; // One more itemlength++; // MessageSystem.out.println("Inserted " + item);} public void Add(Object...

For the programming language Java

How many objects are created in the following code:public class RAM {int size;RAM(int size) { this.size = size; }}public class Motherboard {int x = 1;RAM ram = new RAM(8192);public static void main(String [] a){ Classroom myroom = new Classroom(2);}}class Computer {Motherboard m[];Computer(int x){m = new Motherboard[x];for (int i = 0; i < m.length; i++)m[i] = new Motherboard();}}class ClassRoom {Computer c1[];ClassRoom(int x){c1 = new Computer[x];for (int i = 0; i < c1.length; i++)c1[i] = new Computer(2);}}

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...

In Java.

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; }...