Chapter 12, Problem 3PP

(Python) (The Stock class) Design a class named Stock to represent a company’s stock that contains: A private string data field named symbol for the stock’s symbol. A private string data field named name for the stock’s name. A private float data field named previousClosingPrice that stores the stock price for the previous day. A private float data field named currentPrice that stores the stock price for the current time. A constructor that creates a stock with the specified symbol, name, previous price, and current price. A get method for returning the stock name. A get method for returning the stock symbol. Getandsetmethodsforgetting/settingthestock’spreviousprice. Getandsetmethodsforgetting/settingthestock’scurrentprice. A method named getChangePercent() that returns the percentage changed from previousClosingPrice to currentPrice. Draw the UML diagram for the class, and then implement the class. Write a test program that creates a Stock object with the stock…

(OBJECT PROGRAMING) 1. Here is a partially coded Chronometer class:public class Chronometer {private int hour;private int minute;private double second;...Code the rest of the class so it has:• A constructor to initialize the hours, minutes and seconds to 0.• A constructor to initialize the hours, minutes and seconds to the values passed to the constructorupon creation of a new Chronometer object.• 3 getters, one for each attribute• 3 setters, one for each attribute

(Rational Class) 1. Create a class called Rational (separate the files as shown in the chapter) for performing arithmetic with fractions. Write a program to test your class. Use integer variables to represent the private data of the class-the numerator and the denominator. Provide a constructor that enables an object of this class to be initialized when it's declared. The constructor should contain default values in case no initializers are provided and should store the fraction in reduced form. For example, the fraction 2/4 would be stored in the object as 1 in the numerator and 2 in the denominator. Provide public member functions that perform each of the following tasks: Make an overloaded operator of the + symbol for the add method - Adds two Rational numbers. The result should be stored in reduced form. Make an overloaded operator of the - symbol for the subtract method - Subtracts two Rational numbers. Store the result in reduced form. Make an overloaded operator of the *…

(Object -oriented programing) 1. Here is Java code to create a chess piece:public class ChessPiece {public String pieceName;public String position; public ChessPiece(String pieceName, String position){this.pieceName = pieceName;this.position = position;}}Complete the code by adding one child class for each type of piece. Every type of piece has an attributecontaining a description of its allowed movements on the chess board.Also, every type of piece must contain a method that can print the description of its movements. Forinstance, a message printed to the screen for the rook could be:"Can go in a straight line until it encounters the edge of the boardor another piece."

(JAVA Programming) Demonstrate the Object Oriented Programming concepts (Inheritance, Polymorphism, and Encapsulation). create a class called Shape. which has a color field and methods for getting and setting the color for each shape, as well as a method for calculating the area of the shape. The Circle, Square, and Rectangle classes are the shapes to include where they inherit from Shape and implement their own versions of the getArea() and display() methods. The Main class creates instances of all three classes and calls their display() methods, demonstrating polymorphism. The color field in the Shape class is encapsulated, and it is accessed through getter and setter methods.  Here is a sample output for this project: Shape: CircleColor: RedRadius: 5.0Area: 78.53981633974483++++++++++++++++++++Shape: RectangleColor: BlueWidth: 3.0Height: 4.0Area: 12.0++++++++++++++++++++Shape: SquareColor: YellowWidth: 4.0Area: 16.0

(C++) A designer in 3D graphics company wants to design a matrix as a two-dimensional array. The size of 2D array could be the last two digit of arid number. Initially he creates a class matrix that provides the member function to check that no array index is out of bounds. Make the member data in the matrix class a 10-by-10 array. A constructor should allow the programmer to specify the actual dimensions of the matrix (provided they’re less than 10 by 10). The member functions that access data in the matrix will now need two index numbers: one for each dimension of the array. Here’s what a fragment of a main() program that operates on such a class might look like: If my Arid Number is  20-Arid-254 then:    // in case of zero consider next digit  matrix m1(5, 4); // define a matrix object  int temp = 12345; // define an int value m1.putel(7, 4, temp); // insert value of temp into matrix at 7,4 temp = m1.getel(7, 4); // obtain value from matrix at 7,4

(Prefix Operator) Consider the class dateType with data members day, month, and year. In this class write a functions to overload the pre-increment (++) and pre-decrement operators (--) to increase the date by a day and decrease the date by a day, respectively.

(Hospital Class) Write a c++ class called 'Hospital' with Data Members: hospital name -string type- //store the name of the hospital Number of beds - integer type- //store number of beds in the hospital number of patient - integer type- // number of patients, consider each patient need one bed, if the hospital has 15 beds then no more than 15 patients Member Functions: Hospital(name, beds, patients) // Constructor to initilize data members addPatient() //to add one patient to number of patients currently in the hospital, just increment number of patient by 1 removePatient() //to remove one patient from number of patients currently in the hospital, just subtract one from number of patients displayInfo() // which just show information about the hospital: hospital name, number of beds, number of patients. Create a program that creates at least three Hospital objects or array of Hospital objects and tests the member functions of…

(Program Should be Done in C++)Create a class named Employee, its data members are empName empDesignation empSalary Create the object of this class using parameterized constructor in order to initialize all the three data members i.e. empName, empDesignation and empSalary Write a member function of this class named increment (), this function will calculate the incremented salary of the employee. In increment function user will enter the increment amount in the current salary of the employee and displays the incremented salary after the addition of increment. Also Write the getter and setter functions for the data members of this class.