Write in html Create an object prototype called Gradebook that will pass an array of grades for a student as a parameter. - Create a boolean in Gradebook madeHonourRoll that will check whether or not the student has made honour roll - Create a function within Gradebook, that will calculate the average of the grades passed - Create a function outside of Gradebook, that will check if the grades are over an 80% average. Return madeHonourRoll as true if the student has made over 80% average - Create a function outside Gradebook, called toString0, that will output to console whether or not the student has made the honour roll.

Develop a Visual C# .NET solution that provides a login authentication service. This solution will have a class library component and two application components contained within the same solution. The LoginAuthenticator Class Create a class library project named LibLoginAuthenticator that contains a class named LoginAuthenticator. The LoginAuthenticator class must support the following features: •The class defines a public string read/write property named Username which gets/sets the Username for the authenticator. • The class defines a public string property named Password which sets the Password for the authenticator. The get part should be private. •The constructor for the class should set the initial values of Username and Password to null. • The class defines a public method named Authenticate with no parameters which returns a bool? (nullable bool) value. • If either Username or Password is null, the method should return null to indicate that not all fields were provided. • If…

C++ Visual Studio 2019 NumDays, TimeOff, and Personnel Report Complete #4, 5 & 6 . Please submit just one file for the classes and main to test the classes. Just create the classes before main and submit only one cpp file. Do not create separate header files. See below code for NumDays class for you to use as a base. #include <iostream> using namespace std; class NumDays{private:    double hours;    double days;public:    NumDays(double h = 0)    {        hours = h;        days = h / 8;    }    void setHours(double h)    {        hours = h;        days = h / 8;    }    void setDays(double d)    {        days = d;        hours = d *8;    }    double getHours()const    {        return hours;    }    double getDays()const    {        return days;    }    //overloaded + operator    NumDays operator+(NumDays& right)    {        NumDays temp;        temp.setHours(hours + right.getHours());        return temp;    }    //overloaded - operator    NumDays operator -(NumDays&…

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The program will consist of two files Program.cs - the main application file; name the class appropriately Unique.cs - class for retrieving the unique values from the user The Unique class provides the following: Constructor Private member variable to store 5 unique values (hint: use an Array or a List) Public function to get 5 unique values from the user and store them in the member variable loop to get the numbers, if a number is already stored, ignore it and keep looping until you have 5 unique numbers if a number is out of range, don't store the value, throw an exception and handle it in such a way that you don't break the loop but do message the user that the value was out of range Public functions to return the following based on the stored values: Largest number Smallest number Sum of all numbers Average of the numbers entered Last number entered divided by the first number entered The main application does the following Creates an instance of the Unique class Calls…

createDatabaseOfProfiles(String filename) This method creates and populates the database array with the profiles from the input file (profile.txt) filename parameter. Each profile includes a persons' name and two DNA sequences. 1. Reads the number of profiles from the input file AND create the database array to hold that number profiles. 2. Reads the profiles from the input file. 3. For each person in the file 1. creates a Profile object with the information from file (see input file format below). 2. insert the newly created profile into the next position in the database array (instance variable).

C++ Language   Please fill in the blanks for the following statements: The file extension for the file that contains the class definition is ______________.

in phython language Create a package folder named shapes. Inside this package, place two more package folders: 2d and 3d.  Inside 2d package, place a module file: circle.py  circle.py module has two function definitions: areaCircle(), circCircle(). areaCircle() function takes a parameter: radius, calculates and returns the area of the circle. You may assume PI is 3.14. circCircle() function also takes a parameter: radius, calculates and returns the circumference of the circle.  Inside 3d package, place two module files: sphere.py and cylindir.py sphere.py module has two function definitions: areaSphere() and volumeSphere() which both take a parameter for radius, calculates and returns area and volume of a sphere respectively.  cylindir.py module has two function definitions: areaCylindir() and volumeCylindir() which both take two parameters: height and radius. They calculate area and volume of a cylindir and return the values respectively.  You may find the formulas for those shapes…

// Declare data fields: a String named customerName, // an int named numItems, and // a double named totalCost.// Your code here... // Implement the default contructor.// Set the value of customerName to "no name"// and use zero for the other data fields.// Your code here... // Implement the overloaded constructor that// passes new values to all data fields.// Your code here... // Implement method getTotalCost to return the totalCost.// Your code here... // Implement method buyItem.//// Adds itemCost to the total cost and increments// (adds 1 to) the number of items in the cart.//// Parameter: a double itemCost indicating the cost of the item.public void buyItem(double itemCost){// Your code here... }// Implement method applyCoupon.//// Apply a coupon to the total cost of the cart.// - Normal coupon: the unit discount is subtracted ONCE// from the total cost.// - Bonus coupon: the unit discount is subtracted TWICE// from the total cost.// - HOWEVER, a bonus coupon only applies if the…

Problem Statement: Develop an Inventory Management System (IMS) for a small retail business that allows the user to manage their product inventory. The system should enable the user to add, edit, update, and delete product information stored in a .csv file. The IMS should be console-based with a menu-driven interface. Requirements: 1. Classes and Objects: - Create a `Product` class with attributes such as `productID`, `productName`, `price`, `quantity`. - Implement a `InventoryManager` class that will handle operations like adding, editing, updating, and deleting products. - Use a `Main` class with the `main` method to run the program and display the menu. 2. File Operations: - Store product information in a .csv file named `inventory.csv`. - Implement methods in `InventoryManager` for reading and writing to the .csv file. 3. Menu-Driven Interface: - Implement a menu in the `Main` class that allows the user to select operations like Add, Edit, Update, Delete, and View Inventory. - Use…