Override the Person class’s speak function inside the Student class. Make the function print “I’m a student”. public class Person { public void speak() { System.out.println("I'm a person"); } public static void main(String[] args) { Person p1 = new Student(); p1.speak(); } } class Student extends Person { // ADD CODE HERE }

class smart { public: void print() const; void set(int, int); int sum(); smart(); smart(int, int); private: int x; int y; int secret(); }; class superSmart: public smart { public: void print() const; void set(int, int, int); int manipulate(); superSmart(); superSmart(int, int, int); private: int z; };   Now answer the following questions: a. Which private members, if any, of smart are public members of superSmart? b. Which members, functions, and/or data of the class smart are directly accessible in class superSmart?

class implementation file -- Rectangle.cpp class Rectangle { #include #include "Rectangle.h" using namespace std; private: double width; double length; public: void setWidth (double); void setLength (double) ; double getWidth() const; double getLength() const; double getArea () const; } ; // set the width of the rectangle void Rectangle::setWidth (double w) { width = w; } // set the length of the rectangle void Rectangle::setLength (double l) { length l; //get the width of the rectangle double Rectangle::getWidth() const { return width; // more member functions here

public class Car {   private int modelYear;    // TODO: Declare purchasePrice field (int)   private int currentValue;     public void setModelYear(int userYear){      modelYear = userYear;   }     public int getModelYear() {      return modelYear;   }     // TODO: Define setPurchasePrice() method     // TODO: Define getPurchasePrice() method     public void calcCurrentValue(int currentYear) {      double depreciationRate = 0.15;      int carAge = currentYear - modelYear;      // Car depreciation formula      currentValue = (int)          Math.round(purchasePrice * Math.pow((1 - depreciationRate), carAge));   }     // TODO: Define printInfo() method to output modelYear, purchasePrice, and currentValue   } import java.util.Scanner;import java.lang.Math; public class CarValue {   public static void main(String[] args) {      Scanner scnr = new Scanner(System.in);            Car myCar = new Car();            int userYear = scnr.nextInt();      int userPrice = scnr.nextInt();      int…

public class Cat extends Pet {   private String breed;    public void setBreed(String userBreed) {      breed = userBreed;   }    public String getBreed() {      return breed;   }} public class Pet {    protected String name;   protected int age;    public void setName(String userName) {      name = userName;   }    public String getName() {      return name;   }    public void setAge(int userAge) {      age = userAge;   }    public int getAge() {      return age;   }    public void printInfo() {      System.out.println("Pet Information: ");      System.out.println("   Name: " + name);      System.out.println("   Age: " + age);   } } import java.util.Scanner; public class PetInformation {   public static void main(String[] args) {        Scanner scnr = new Scanner(System.in);         // create a generic Pet and a Cat        Pet myPet = new Pet();        Cat myCat = new Cat();         // declare variables for pet and cat info        String petName, catName, catBreed;        int petAge,…

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 called

class Course {    private String courseNumber;    private String courseName;    private int creditHrs;     public Course (String number, String name, int creditHrs){        this.courseNumber = number;        this.courseName = name;        this.creditHrs = creditHrs;    }     public String getNumber() {        return courseNumber;    }     public String getName() {        return courseName;    }     public int getCreditHrs() {        return creditHrs;    }     public void setCourseNumber(String courseNumber) {        this.courseNumber = courseNumber;    }     public void setCourseName(String courseName) {        this.courseName = courseName;    }     public void setCreditHrs(int creditHrs) {        this.creditHrs = creditHrs;    }}class Student {    private String firstName;    private String lastName;    private String gender;    private String phoneNumber;    private String email;    private String jNumber;    protected ArrayList courseList;     public String getFullName() {…

class IndexItem { public: virtual int count() = 0; virtual void display()= 0; };class Book : public IndexItem { private: string title; string author; public: Book(string title, string author): title(title), author(author){} virtual int count(){ return 1; } virtual void display(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };class Category: public IndexItem { private: /* fill in the private member variables for the Category class below */ ? int count; public: Category(string name, string code): name(name), code(code){} /* Implement the count function below. Consider the use of the function as depicted in main() */ ? /* Implement the add function which fills the category with contents below. Consider the use of the function as depicted in main() */ ? virtualvoiddisplay(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };