Which of the following Core Java Classes can be considered "Static Utility Classes" (select all that apply): (a) Collections (b) System (c) Math (d) Arrays (e) All of the above
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- [JAVA] attached is the problem statement. ------------------------------------------------- public class CreateAFile implements Assignment {}Example in Java Write and use classes with instance variables and their getters and setters. static and/or constant data default and overloaded constructors methods and overloaded methods toString() equals() 7. aggregationProblem (Circle.java) Implement a class called Circle for representing a circle. The circle has two data members, a Point object representing the center of the circle and a float value representing the radius. Include appropriate constructors for your Circle class. Encapsulate it. Also include methods for finding the area and circumference of the circle. area = pi * radius * radius circumference = 2 * pi * radius. (You may use the static constant pi in the Math class) 5. Override the toString() and equals().
- use java (ArrayList, inheritance, polymorphism, File I/O and basic Java) Student class: First, you need to design, code in Java, test and document a base class, Student. The Student class will have the following information, and all of these should be defined as Private: A first name (given name) A last name (family name/surname) Student number (ID) – an integer number (of type long) The Student class will have at least the following constructors and methods: (i) two constructors - one without any parameters (the default constructor), and one with parameters to give initial values to all the instance variables of Student. (ii) only necessary set and get methods for a valid class design. (iii) a reportGrade method, which you have nothing to report here, you can just print to the screen a message “There is no grade here.”. This method will be overridden in the respective child classes. (iv) an equals method which compares two student objects and returns true if they…Software Requirements: • Latest version of NetBeans IDE • Java Development Kit (JDK) 8 Procedure: 1. our progras from rhFactor non-static and private. Remove the constructor with two (2) parameters. 2o upply uncapsutation Make bloodType and 2. The names of the public setter and getter methods should be: • setBloodType() • setRhFactor() getBlood Type() getRhFactor() 3. Use the setter methods to accept user input. 4. Display the values by calling the getter methods. Sample Output: Enter blood type of patient: Enter the Rhesus factor (+ or -): O+ is added to the blood bank. Enter blood type of patient: B Enter the Rhesus factor (+ or -): B- is added to the blood bank.Please help with the following: C# .NET change the main class so that the user is the one that as to put the name Write a driver class (app) that prompts for the person’s data input, instantiates an object of class HeartRates and displays the patient’s information from that object by calling the DisplayPatientRecord, method. MAIN CLASS---------------------- static void Main(string[] args) { // instance of patient record with each of the 4 parameters taking in a value HeartRates heartRate = new HeartRates("James", "Kill", 1988, 2021); heartRate.DisplayPatientRecord(); // call the method to display The Patient Record } CLASS HeartRATES------------------- class HeartRates { //class attributes private private string _First_Name; private string _Last_Name; private int _Birth_Year; private int _Current_Year; // Constructor which receives private parameters to initialize variables public HeartRates(string First_Name, string Last_Name, int Birth_Year, int Current_Year) { _First_Name =…
- Need help in Java programming. Write the class definitions for all classes. Be sure to include all properties and two getters and setters for each class. One of the getters and setters should be for a string datatype, and one for either a numeric or Boolean data type. At a minimum the following classes need to be defined: Customer (CustID, LastName, FirstName, Street, City, State, Zip, TaxExempt) Inventory (ItemID, Description, Cost, Selling Price, Quantity On Hand) Order Header (OrderID, CustID, OrderDate, Shipto, Amount Due) Order Detail (OrderID, Line Number, ItemID, Quantity Ordered, Selling Price, Total)Instructions: Implement the Java class Customer by following the UML class diagram provided below. Implementation details: The class constructor must receive the arguments in the following order: String firstName, String lastName, String address, String cardNumber, int pin, String username The password must be generated inside the class constructor by the class method generatePassword(). The password to be generated must meet the following criteria: Must have at least one numeric character. Must have at least one lowercase character. Must have at least one uppercase character. Must have at least one special symbol among @#$% Password length to be generated is fixed and equal to 12. Do please use SecureRandom() class to achieve randomness during password generation. toString() return value format must be as follows:Customer [firstName='John', lastName='Monkey', cardNumber='11336688', pin='1234', username='j.monkey', password='zF$7zR#1lFAo', address='453 Manin st,…Solve as C++ Code please: 1- Creates a class Student with 3 attributes: name, id and level. a. Add a constructor able to create a Student; b. Add the methods getId and getLevel; c. Add the method display able to display the attributes, 2- Creates a class StudentPhD extending the class Student with two more attributes: specialty and supervisorName; a. Add a constructor to create a StudentPhd b. Add a display method: display need to override (polymorphism) the previous display method of Student class; 3- Creates a class called College with 6 attributes: a. maxStud: a maximum number of Student into the college; b. nbStud: the current number of Student into the college. When a College is created, the number nbStud is equal to 0; c. Student Stud[]: an array of Student. The size of this array is equal to maxStud; d. maxPhdStud: a maximum number of PhDStudent into the college; e. nbPhdStud: the current number of PhDStudent into the college. When a College is created, the number nbPhDStud is…
- nyoni.trinos87@gmail.com Question 1 Using C# create a class called shapes, the class is supposed to have attributes length, width and height. There should be methods for calculating the area and the perimeter of a shape. Create classes circle, rectangle and square to inherit from class shapes. The derived classes should override methods in the parent class for them to calculate their own areas and perimeters.Using C++ write the following program. Create a calculator class that has following methods.• Sum• Multiply• Divide• SubtractThe user should be able to call these methods without any objects created for classcalculator.Using c ++ write a class named Reservation with the following features and functionality. • Flight number Passenger name • Reservation number Number of passenger baggage • Type the method that prints the reservation information on the screen.