Another method that might be desired is one that updates the Goalie's jerseyNumber. This method will receive a nev number of Jersey and set this number to the Goalie's current jerseyNumber. Which of the following methods would accomplish this? A. public int updateJerseyNumber ( )
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- In Java code: Write the class encapsulating the concept of money, assuming that money has the following attributes: dollars, cents In addition to the constructors, the accessors and mutators, write the following methods: public Money() public Money(int dollars, int cents) public Money add(Money m) public Money substract(Money m) public Money multiply(int m) public static Money[] multiply(Money[] moneys, int amt) public boolean equals(Money money) public String toString() private void normalize() // normalize dollars and cents field Add additional helper methods if necessary. Use the following test driver program to test your Money class: public class MoneyTester{public static void main(String[] args){Money m1 = new Money(8, 75); // set dollars to 8 and cents to 75Money m2 = new Money(5, 80); // set dollars to 5 and cents to 80 MoneyMoney m3 = new Money(); // initialize dollars to 0 and cents to 0System.out.println("\tJane Doe " + "CIS35A Spring 2021 Lab 4"); // useyour…A rational number is the quotient of two integers - the numerator and denominator. The denominator cannot be zero. Two rational numbers can be added, subtracted, multiplied and divided. Write a java classRational for a rational number with the following specs: • A constructor that gets two integers (make sure the denominator is not 0).• The numerator and denominator should be private.• Getters: public int getNumerator() and public int getDenominator()• Setters: public void setNumerator(int n) and public void setDenominator(int d)• Public methods public Rational add(Rational r1), public Rational subtract(Rationalr1), public Rational multiply(Rational r1) and public Rational divide(Rational r1).• Printer function: public void print(). The number should be printed in the format n/d (numerator, forward-slash, denominator).In this exercise, you have to calculate the student's total marks using the concept of Classes Problem Statement# Write a Java class called Student with ● private fields: ○ name(String type) ○ mark1 and mark2 (double type) And methods: ● getMarks(int markNumber), a method which should return mark1 if markNumber equals 1 and mark2 otherwise. ● calcTotal() method should take the two marks entered and return their sum. Also define two constructors: ● A default constructor that takes no parameters and initializes the values to zeros and null. ● A constructor that takes the three variables and sets them as the values of the appropriate fields. Input# Name of the student and the marks obtained in the first and second tests Output# Sum of both marks Sample Input# Student student = new Student("Jack", 60, 70); Sample Output# getMarks(1) => 60 getMarks(2) => 70 calcTotal() => 130.0 Part of solution class Student { // Define private fields here public Student() { // Write…
- COMPLETE THE JAVA CODE BELOWSEE ATTACHED PHOTO FOR THE PROBLEM AND THE OUTPUT class Employee extends Person { private String companyName; public Employee(String name,String address,int age,String companyName) { super(name,address,age); this.companyName = companyName; } public Employee() { } public void setCompanyName(String cname){ companyName = cname; } public String getCompanyName(){ return companyName; } // Override the display method in the Person class // define earnings as an abstract method with a return type of double // override the toString() and equals() methods } class HourlyEmployee extends Employee{ private int hoursWorked; //total number of hours worked private double rate; // rate per hour public HourlyEmployee(String name,String address,int age,String cName,int hoursWorked,double rate) { } public HourlyEmployee(String name,String address,int age,String cName)…(Java) Question 3 Explain the answer step-by-step and include verbal explanation. Thank you! What will the following display to the console (don't run the code until you work it out by hand!) public class Person { String name; public Person(String name) { this.name = name; } public void printGreeting() { System.out.println("Hi, my name is, " + name + "!"); }}public class Student extends Person { double gpa; public Student(String name, double gpa) super(name); this.gpa = gpa; } public void printGreeting() { super.printGreeting(); System.out.println("My GPA of " + gpa + " is higher than yours!"); }}public class Test { public static void main(String[] args) { Person yan = new Person("Yan"); Person leann = new Student("Leann", 4.0); Student anh = new Student("Anh", 3.95); yan.printGreeting(); leann.printGreeting(); anh.printGreeting(); }}I need help with this Java Problem as described in the image below: public class AnimalData { private int ageYears; private String fullName; public void setName(String givenName) { fullName = givenName; } public void setAge(int numYears) { ageYears = numYears; } // Other parts omitted public void printAll() { System.out.print("Name: " + fullName); System.out.print(", Age: " + ageYears); }}// ===== end ===== // ===== Code from file PetData.java =====public class PetData extends AnimalData { private int idNum; public void setID(int petID) { idNum = petID; } // FIXME: Add printAll() member function /* Your solution goes here */ }// ===== end ===== // ===== Code from file BasicDerivedOverride.java =====import java.util.Scanner; public class BasicDerivedOverride { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); PetData userPet = new PetData(); String userName; int userAge;…
- [JAVA] public class FlightRules {public final static int minHostessCount = 2; public final static int minSeniorHostessCount = 1; public final static int yearsToBecomeSenior = 3; } Answer these questions according to the UML class schema and the code given above. You may need to extract hidden information from the schema and add necessary code while answering the questions.Question 1: Write the source code of the class Passenger. A passenger can travel with an infant (i.e. his/her child). Code the class Infant as an inner class of the class Passenger. If a passenger is not travelling with an infant, the getInfantMonths method must return –1.Question 2: Write the source code of the exception FlightException.Question 3: Write the source code of the multithreaded class of CheckPilots. The details of this class is given in Question 6 as an instance of this class is used in the Flight.checkCrew() method.Question 4: Write the source code of the class Flight. Some details of this class is as…Hey all, stuck on this problem. All coding is done in Java, using IntelliJ Idea. Question is as follows: 7. Circle Class Write a Circle Class that has the following fields: Radius: A double PI: A final double initialized with the value 3.14159 The class should have the following methods: Constructor: Accepts the radius of the circle as an argument. Constructor: A no-arg constructor that sets the radius field to 0.0 setRadius: A mutator method for the radius field. getRadius: An accessor method for the radius field. area: Returns the area of the circle, which is calculated as area = PI * radius * radius diameter: Returns the diameter of the circle, which is calculated as diameter = radius * 2 circumference: Returns the circumference of the circle, which is calculated as circumference = 2 * PI * radius Write a program that demonstrates the Circle class by asking the user for the circle's radius, creating a Circle object, and then reporting the circle's area, diameter, and circumference.…Explain the following Java Polymorphism code in details.class Shape{public double getArea(){return 0.0;}}class Circle extends Shape{private int x,y;private double radius;public Circle(){x = y = 0;radius = 0.0;}public Circle(int x, int y, double radius){this.x=x;this.y=y;this.radius = radius;}public void drawShape(){System.out.println("Circle.drawShape()");}public double getArea(){double area = Math.PI* radius * radius;System.out.println("Circle area="+area);return area;}}class Rectangle extends Shape{private int x,y,h,w;public Rectangle(){x = y = h = w = 0;}public Rectangle(int x, int y, int h, int w){this.x=x;this.y=y;this.h=h;this.w=w;}public void drawShape(){System.out.println("Rectangle.drawShape()");}public double getArea(){double area = w * h;System.out.println("Rectangle area="+area);return area;}}public class ShapeTest{public static void main(String[] args) {Shape s = new Shape();Circle c = new Circle(0,0,10.0);Rectangle r = new Rectangle(0,0,5,4);System.out.println("Return…
- JAVA PROGRAMMING - Create a class named "Shape" that has rhe abstract methods getArea() and getPerimeter(). - Create a class named "Rectangle", "Square", and "Circle". Override the methods getArea() and getPerimeter() with the right equation in getting the area and perimeter. - For rectangle, create attribute length and width. For square, side. For circle, radius Inputs: 1. Char input for Shape Type (Rectangle, Square, Circle). 2. Dimensions for specific type of Shape Output: Shape: Rectangle Length: 10 Width: 50 Area: 500.00 Perimeter 120.00Given below is the code for the controlling class with constructor overloading, analyse the code and write the Java code for the class program with all details. Make your assumptions wherever needed. public class DriverClass { public static void main( String[] args ) { Number N1 = new Number (2,3,5); Number N2 = new Number (2.5,3.5,5,5); Number N3 = new Number (2,3); N1.displayAverage(); N2.displayAverage(); N3.displayAverage(); } }use Java. Given the following class. public class FamilyMember { public String drink( ) {return “cup”;} public String eat( ) {return “fork”;} } Write a Baby class that is derived from the FamilyMember class. The Baby class has an instance variable for the age, a default constructor, and a constructor that accepts an integer. Include any other necessary methods. If a baby is older than 3 years, print that “it eats with its fork”; otherwise, “it eats with its hands”.