Question 3 (students need to only write justifications) Connascence Here is a simplified class someone wrote called "SendMail". class SendMail { private Mailer mailer = new Mailer (); mailer.setReceipient(“example@email.com"); mailer.setSender(“myself@company.edu"); mailer.setSubject(“Urgent: something here"); mailer.send(); mailer.setcC(“supervisor@company.edu"); } Several supervisors in the company started to complain about not receiving emails. You realise there is a small problem with the code and you realise it is a classic example of connascence. 1) What type of connascence does this code illustrate?
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
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- Please code in python Create a program with two classes – the person class and the student The person class has the following properties: first name (first_name), last name (last_name) street address (address) city (city) zip code (zip) The class has the following methods: get_full_name, which returns the full name of a person get_full_address, which return greeting, returns a greeting message. The class should provide accessor and mutator for each property The class should override the __str__ method to return the state of the object. Create a child class called student which has a property named graduation year (graduation_year) and major. Provide accessor and mutator for each property of its own It inherits all the properties and methods of the person parent class as well. Create a test program that Create an object of the person class and print the full name of a person. Create an object of the person class and print…Lab 12 - Advanced JavaFX Controls Part 1: Make a new copy of the JavaFX program SimpleCalculator that you developed in Lab 11, then add to it a menu with four menu items as shown below. This menu should allow a user to perform addition, subtraction, multiplication, and division. Simple Calculator I Simple Calculator Operation Operation First Number: Add Ctrl+A Subtract Ctrl+S Second Number: Multiply Ctrl+M Result: Divide Ctrl+D Add Subtract Multiply Divide Add Subtract Multiply Divide Discuss: 1. Where to place the menu bar? Is the menu bar should be placed at the top of the border pane? 2. Is it better to use methods for implementing addition, subtraction, multiplication, and division tasks and call those methods whenever they are needed instead of rewriting the same code once for the buttons and again for the menu items? 3. How can you assign keyboard accelerator to a menu item (such as: Ctrl+A to Add)?Please help with the following: C# .NET change the main class so that the user is the one that as to put the name in other words. Write a driver class that prompts for the person’s data input, instantiates an object of class HealtProfile and displays the patient’s information from that object by calling the DisplayHealthRecord, method. MAIN CLASS---------------------- static void Main(string[] args) { // Instance created holding 6 parameters which are field with value HealthProfile heartRate = new HealthProfile("James","Kill",1978, 79.5 ,175.5, 2021 ); heartRate.DisplayPatientRecord();// call the patient record method } CLASS HeartProfile------------------- public class HealthProfile { // attibutes which holds the following value private String _FirstName; private String _LastName; private int _BirthYear; private double _Height; private double _Weigth; private int _CurrentYear; public HealthProfile(string firstName, string lastName, int birthYear, double height, double wt, int…
- Design/code/test a Java program containing an abstract the class absWelcome. This class should contain: 1. A public abstract void method (you name it) that is empty 2. A public regular method (you name it) that prints "Welcome to " Next, create a subclass clsHello that extends absWelcome. This class should contain: • A public regular method (you name it) that prints "Java Programming" Finally, inside the Main class create an object (you name it) from the clsHello class. Use this new object reference to: 1. Output "Welcome to " from the abstract class 2. Output "Java Programming" from the subclass Your output should resemble that shown below >sh -c javac -classpath -type f-name '*.java') java -classpath :targe Welcome to Java ProgrammingTask Performance Amount Due Objective: At the end of the activity, the students should be able to: • Apply method overloading in a program. Procedure: 1. Develop a simple program for an individual savings account. Create two (2) classes named AmountDue (no class modifier) and RunAmountDue (public). 2. For the AmountDue class, create three (3) overloaded methods named computeAmountDue based on the following conditions: With a single parameter: It represents the price of one (1) item ordered. Add 12% tax and return the total due. • With two (2) parameters: These represent the price of an item and the quantity ordered. Multiply the two (2) values, add 12% tax, and return the total due. With three (3) parameters: These represent the price of an item, the quantity ordered, and the discount amount. Multiply the quantity and price, deduct the discount amount, add 12% tax, and return the total due. 3. For the RunAmountDue class, import the Scanner class to be able to use the nextDouble()…For the following four classes, choose the correct relationship between each pair. public class Room ( private String m type; private double m area; // "Bedroom", "Dining room", etc. // in square feet public Room (String type, double area) m type type; m area = area; public class Person { private String m name; private int m age; public Person (String name, int age) m name = name; m age = age; public class LivingSSpace ( private String m address; private Room[] m rooms; private Person[] m occupants; private int m countRooms; private int m countoccupants; public LivingSpace (String address, int numRooms, int numoccupants) m address = address; new int [numRooms]; = new int [numOceupants]; m rooms %3D D occupants m countRooms = m countOccupants = 0; public void addRoom (String type, double area)
- public class Aircraft { // instance vairables private String aircraftName; private String regNumber; private String manufacturer; privateintmaxRange; privateintcrewSize; private LocalDate yearPutInService; privateintmaxServiceWeight; privateintnumberOfPassengers; privateintcurrentAirMiles; private LocalDate lastMaintenanceDate; privateintlastMaintenanceMiles; /** * Default Constructor * * @param lastMaintenanceMiles * @param lastMaintenanceDate * @param totalMiles * @param model * @param manufacturer * @param regNumber * @param vehicleType */ public Aircraft(String aircraftName, String regNumber, String manufacturer, intmaxRange, intcrewSize, LocalDate yearPutInService, int maxServiceWeight, int numberOfPassengers, int currentAirMiles, LocalDate lastMaintenanceDate, int lastMaintenanceMiles) { { this.aircraftName = aircraftName; this.regNumber = regNumber; this.manufacturer = manufacturer; this.maxRange = maxRange; this.crewSize = crewSize; this.yearPutInService = yearPutInService;…Assignment:The BankAccount class models an account of a customer. A BankAccount has the followinginstance variables: A unique account id sequentially assigned when the Bank Account is created. A balance which represents the amount of money in the account A date created which is the date on which the account is created.The following methods are defined in the BankAccount class: Withdraw – subtract money from the balance Deposit – add money to the balance Inquiry on:o Balanceo Account ido Date createdGiven the following class definition: class employee{public: employee(); employee(string, int, double); employee(int, double); employee(string); void setData(string, int, double); void print() const; void updatePay(double); int getNumOfServiceYears() const; double getPay() const;private: string name; int numOfServiceYears; double pay;}; Create a class parttime derived from the above class that includes private members payRate and hoursWorked of type double along with a constructor and the definition of a print function that prints out all information from the base and derived class. Provide a test program that would demonstrate the working parttime class. Note: You can assume all code is stored in a single file.
- PLEASE TYPE ONLY*** JAVA PROGRAMMING Program #2: Write a class called YourFirstNameLine that represents a line segment between two Points. Your Line objects should have the following methods: public YourFirstNameLine (Point p1, Point P2): construct a new Line that contains the given two Points public Point getStartPoint(): return this Line’s first endpoint public Point getEndPoint(): return this Line’s second endpoint public String toString(): return a String representation of this Line, such as “[(2,3), (4,7)]” public double getSlope(): return the slope of this Line. The slope of a line between points (x1, y1) and (x2, y2) is equal to (y2-y1)/(x2-x1). If x2 equals x1, the denominator is zero and the slope is undefined, so you may return a zero in this case public void draw (Graphics g): draw a line in a DrawingPanel. Write a client class called YourFirstNameLineTest with main method to test your Line class. In the main method, you need create a line object with the last four…Code the StudentAccount class according to the class diagramMethods explanation:pay(double): doubleThis method is called when a student pays an amount towards outstanding fees. The balance isreduced by the amount received. The updated balance is returned by the method.addFees(double): doubleThis method is called to increase the balance by the amount received as a parameter. The updatedbalance is returned by the method.refund(): voidThis method is called when any monies owned to the student is paid out. This method can onlyrefund a student if the balance is negative. It displays the amount to be refunded and set thebalance to zero. (Use Math.abs(double) in your output message). If there is no refund, display anappropriate message.Test your StudentAccount class by creating objects and calling the methods addFees(), pay() andrefund(). Use toString() to display the object’s data after each method calledJava question please Create a class called Account that has the following attributes: Account Client - AccountHolder Double - Balance Date - DateCreated Account() Account(Client AccountHolder, Double Balance) getAccountHolder() - Client setAccountHolder(Client) - void getBalance() - Double deposit(Double) - Double withdrawal(Double) - Double getDateCreated() - Date toString() - String compareTo(Account) - Integer equals(Account) - Double Notes: The account holder attribute will link to the Account class that you created in problem 6. Your constructor and overloaded constructor should set the date created to the current date. Your deposit method should add to the balance Your withdrawal method should remove from the balance, as long as there is enough money to withdrawal