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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;…

class Player {   protected:    string name;    double weight;    double height;   public:    Player(string n, double w, double h)      { name = n; weight = w; height = h; }    string getName() const      { return name; }    virtual void printStats() const = 0; };   class BasketballPlayer : public Player {   private:    int fieldgoals;    int attempts;   public:    BasketballPlayer(string n, double w,     double h, int fg, int a) : Player(n, w, h)      { fieldgoals = fg; attempts = a; }    void printStats() const      { cout << name << endl;         cout << "Weight: " << weight;         cout << " Height: " << height << endl;        cout << "FG: " << fieldgoals;        cout << " attempts: " << attempts;        cout << " Pct: " << (double) fieldgoals / attempts << endl; } }; a. What does = 0 after function printStats() do? b. Would the following line in main() compile: Player p; -- why or why not? c. Could…

public class Plant {   protected String plantName;   protected String plantCost;    public void setPlantName(String userPlantName) {      plantName = userPlantName;   }    public String getPlantName() {      return plantName;   }    public void setPlantCost(String userPlantCost) {      plantCost = userPlantCost;   }    public String getPlantCost() {      return plantCost;   }    public void printInfo() {      System.out.println("   Plant name: " + plantName);      System.out.println("   Cost: " + plantCost);   }} public class Flower extends Plant {    private boolean isAnnual;   private String colorOfFlowers;    public void setPlantType(boolean userIsAnnual) {      isAnnual = userIsAnnual;   }    public boolean getPlantType(){      return isAnnual;   }    public void setColorOfFlowers(String userColorOfFlowers) {      colorOfFlowers = userColorOfFlowers;   }    public String getColorOfFlowers(){      return colorOfFlowers;   }      @Override   public void printInfo(){…

public class Person { private String personID; private String firstName; private String lastName; private String birthDate; private String address; public Person(){ personID = ""; firstName = ""; lastName = ""; birthDate = ""; address = ""; } public Person(String id, String first, String last, String birth, String add){ setPerson(id,first,last,birth,add); } public void setPerson(String id, String first, String last, String birth, String add){ personID = id; firstName = first; lastName = last; birthDate = birth; address = add; } public String getFirstName(){ return firstName; } public String getLastName(){ return lastName; } public String getBirthdate(){ return birthDate; } public String getAddress(){ return address; } public void print(){ System.out.print("\nPerson ID = " + personID); System.out.print("\nFirst Name = " +firstName); System.out.print("\nLast Name = " +lastName); System.out.print("\nBirth Date = " +birthDate); System.out.print("\nAddress = " +address); } public String…

public class Person { private String personID; private String firstName; private String lastName; private String birthDate; private String address; public Person(){ personID = ""; firstName = ""; lastName = ""; birthDate = ""; address = ""; } public Person(String id, String first, String last, String birth, String add){ setPerson(id,first,last,birth,add); } public void setPerson(String id, String first, String last, String birth, String add){ personID = id; firstName = first; lastName = last; birthDate = birth; address = add; } public String getFirstName(){ return firstName; } public String getLastName(){ return lastName; } public String getBirthdate(){ return birthDate; } public String getAddress(){ return address; } public void print(){ System.out.print("\nPerson ID = " + personID); System.out.print("\nFirst Name = " +firstName); System.out.print("\nLast Name = " +lastName); System.out.print("\nBirth Date = " +birthDate); System.out.print("\nAddress = " +address); } public String…

public class LabProgram {   public static void main(String args[]) {   Course course = new Course(); String first;  // first name       String last;   // last name       double gpa;    // grade point average              first = "Henry";       last = "Cabot";       gpa = 3.5;       course.addStudent(new Student(first, last, gpa));  // Add 1st student              first = "Brenda";       last = "Stern";       gpa = 2.0;       course.addStudent(new Student(first, last, gpa));  // Add 2nd student              first = "Jane";       last = "Flynn";       gpa = 3.9;       course.addStudent(new Student(first, last, gpa));  // Add 3rd student              first = "Lynda";       last = "Robison";       gpa = 3.2;       course.addStudent(new Student(first, last, gpa));  // Add 4th student   course.printRoster(); }     } // Class representing a student public class Student {   private String first;  // first name private String last;   // last name private double gpa;    // grade point average…

Instrument.java public class Instrument { protectedStringinstrumentName; protectedStringinstrumentManufacturer; protectedintyearBuilt, cost; publicvoidsetName(StringuserName) { instrumentName = userName; } publicStringgetName() { return instrumentName; } publicvoidsetManufacturer(StringuserManufacturer) { instrumentManufacturer = userManufacturer; } publicStringgetManufacturer(){ return instrumentManufacturer; } publicvoidsetYearBuilt(intuserYearBuilt) { yearBuilt = userYearBuilt; } publicintgetYearBuilt() { return yearBuilt; } publicvoidsetCost(intuserCost) { cost = userCost; } publicintgetCost() { return cost; } publicvoidprintInfo() { System.out.println("Instrument Information: "); System.out.println(" Name: " + instrumentName); System.out.println(" Manufacturer: " + instrumentManufacturer); System.out.println(" Year built: " + yearBuilt); System.out.println(" Cost: " + cost); } }   StringInstrument.java // TODO: Define a class: StringInstrument that is derived from…

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public class Book {    protected String title;   protected String author;   protected String publisher;   protected String publicationDate;    public void setTitle(String userTitle) {      title = userTitle;   }    public String getTitle() {      return title;   }    public void setAuthor(String userAuthor) {      author = userAuthor;   }    public String getAuthor(){      return author;   }    public void setPublisher(String userPublisher) {      publisher = userPublisher;   }    public String getPublisher() {      return publisher;   }    public void setPublicationDate(String userPublicationDate) {      publicationDate = userPublicationDate;   }    public String getPublicationDate() {      return publicationDate;   }    public void printInfo() {      System.out.println("Book Information: ");      System.out.println("   Book Title: " + title);      System.out.println("   Author: " + author);      System.out.println("   Publisher: " + publisher);      System.out.println("   Publication…

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 */ } };

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<MyCourse> courseList;     public String…

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() {…

C# problem  when printing Weigh no value shows up code public class HealthProfile{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 weigth, int currentYear){_FirstName = firstName;_LastName = lastName;_BirthYear = birthYear;_Height = height;_Weigth = weight;_CurrentYear = currentYear;}public string firstName { get; set; }public string lastName { get; set; }public int birthYear { get; set; }public int height { get; set; }public double weight { get; set; }public int currentYear { get; set; }public int Person_Age{get { return _CurrentYear - _BirthYear; }}public double Height{get { return _Height; }}public double Weight{get { return Weight; }}public int Max_Heart_Rate{get { return 220 - Person_Age; }}public double Min_Target_Heart_Rate{get { return Max_Heart_Rate * 0.65; }}public double…

public class ItemToPurchase {    private String itemName;    private int itemPrice;    private int itemQuantity;     // Default constructor    public ItemToPurchase() {        itemName = "none";        itemPrice = 0;        itemQuantity = 0;    }     // Mutator for itemName    public void setName(String itemName) {        this.itemName = itemName;    }     // Accessor for itemName    public String getName() {        return itemName;    }     // Mutator for itemPrice    public void setPrice(int itemPrice) {        this.itemPrice = itemPrice;    }     // Accessor for itemPrice    public int getPrice() {        return itemPrice;    }     // Mutator for itemQuantity    public void setQuantity(int itemQuantity) {        this.itemQuantity = itemQuantity;    }     // Accessor for itemQuantity    public int getQuantity() {        return itemQuantity;    }} import java.util.Scanner; public class ShoppingCartPrinter {   public static void main(String[] args) {      Scanner scnr = new…

class Vehicle { private: int wheels; protected : int passenger: public : void inputdata(int, int); void outputdata(); }; class Heavyvehicle : protected Vehicle { int diesel_petrol; protected : int load; public: void readdata(int, int); void writedata(); }; class Bus : private Heavyvehicle char make[20]; public : void fetchdata(char); void displaydata(); (1) Name the base class and derived class of the class Heavyvehicle. (ii) Name the data member(s) that can be accessed from function displaydata(). (iii) Name the data member's that can be accessed by an object of Bus class. (iv) Is the member function outputdata() accessible to the objects of Heavyvehicle class.

//PLEASE CORRECT MY MISTAKES, THANK YOUpublic class Person { private String personID; private String firstName; private String lastName; private String birthDate; private String address; public Person(){ personID = ""; firstName = ""; lastName = ""; birthDate = ""; address = ""; } public Person(String id, String first, String last, String birth, String add){ setPerson(id,first,last,birth,add); } public void setPerson(String id, String first, String last, String birth, String add){ personID = id; firstName = first; lastName = last; birthDate = birth; address = add; } public String getFirstName(){ return firstName; } public String getLastName(){ return lastName; } public String getBirthdate(){ return birthDate; } public String getAddress(){ return address; } public void print(){ System.out.print("\nPerson ID = " + personID); System.out.print("\nFirst Name = " +firstName); System.out.print("\nLast Name = " +lastName); System.out.print("\nBirth Date = " +birthDate);…

Public classTestMain {     public static void main(String [ ] args)     {          Car myCar1, myCar2;          Electric Car myElec1, myElec2;          myCar1 = new Car( );          myCar2 = new Car("Ford", 1200, "Green");          myElec1 = new ElectricCar( );          myElec2 = new ElectricCar(15);          } }

Class Quiz   public Quiz (int quesList, int quesMissed) {quesList = this.quesList;quesMissed = this.quesMissed;} private void calculate(){// get the point worth of each question and calculate final scorepointsPerQues = (100/quesList);scoreQuiz = quesList - quesMissed;}   Class PassFailQuiz   public PassFailQuiz (int quesList, int quesMissed, int scoreQuiz) { super(quesList, quesMissed);}   How do I move scoreQuiz from private void calculate() to equal the third constructor value in PassFailQuiz?

sensors.io code:  lass Sensor {   public:     virtual float read() = 0;     virtual const char* sensorName();   protected:     Sensor(int p) : pin(p) {}   protected:     int pin; }; class Thermistor : public Sensor {   public:     Thermistor(int);     const char* sensorName();     float read(); }; class LightSensor : public Sensor {   public:     LightSensor(int);     const char* sensorName();     float read(); }; // TODO write the Thermistor and LightSensor constructor, sensorName, // and read methods Sensor* sensors[2]; void setup() {   Serial.begin(9600);   sensors[0] = new Thermistor(A3);   sensors[1] = new LightSensor(A0); } int sensorno = 0; void loop() {   // TODO write code to check if data is available from the serial port.   // If the user types in a '0', change the sensorno to 0.   // If the user types in a '1', change the sensorno to 1.   Sensor* mysensor = sensors[sensorno];   Serial.print(mysensor->sensorName());   Serial.print(": ");…

public class Author2 {3 private String name;4 private int numberOfAwards;5 private boolean guildMember;6 private String[] bestsellers;78 public String Author()9 {10 name = "Grace Random";11 numberOfAwards = 0;12 guildMember = false;13 bestsellers = {"Minority Report", "Ubik", "The Man in the HighCastle"};14 }1516 public void setName(String n)17 {18 name = n;19 }20 public String getName()21 {22 return name;23 }2425 public void winsAPulitzer()26 {27 System.out.println(name + " gave a wonderful speech!");28 }29 } 1. This class includes a constructor that begins on line 8; however, it contains an error. Describe the error. 2. Rewrite the constructor header on line 8 with the error identied in part c of this question corrected. 3. Demonstrate how you might overload the constructor for this class. Write only the header. 4. Write a line of Java code to create an instance (object) of this class. Name it someAuthor. 5. Write a line of code to demonstrate how you would use the someAuthor object…

Focus on classes, objects, methods and good programming style Your task is to create a BankAccount class. Class name BankAccount Attributes _balance float _pin integer Methods init () get_pin() check pin () deposit () withdraw () get_balance () The bank account will be protected by a 4-digit pin number (i.e. between 1000 and 9999). The pin should be generated randomly when the account object is created. The initial balance should be 0. get_pin () should return the pin. check_pin (pin) should check the argument against the saved pin and return True if it matches, False if it does not. deposit (amount) should receive the amount as the argument, add the amount to the account and return the new balance. withraw (amount) should check if the amount can be withdrawn (not more than is in the account), If so, remove the argument amount from the account and return the new balance if the transaction was successful. Return False if it was not. get_balance () should return the current balance.…

class Main { publicstaticvoid main(String[] args) {   // Coin myPenny = new Coin(CoinType.PENNY); // Coin myNickel = new Coin(CoinType.NICKEL); // Coin myDime = new Coin(CoinType.DIME); // Coin myQuarter = new Coin(CoinType.QUARTER); // Coin myHalfDollar = new Coin(CoinType.HALF_DOLLAR); // Coin myDollar = new Coin(CoinType.DOLLAR); // System.out.println(printValue(myPenny)); // System.out.println(printValue(myNickel)); // System.out.println(printValue(myDime)); // System.out.println(printValue(myQuarter)); // System.out.println(printValue(myHalfDollar)); // System.out.println(printValue(myDollar)); } publicstatic String printValue(Coin c){ String result = ""; // result = String.format("The value of a %s is $%.2f", c.getName(), c.getValue()); return result; } }

class Clock { public:    Clock() : hourValue_(0), minuteValue_(0), secondValue_(0) {};    Clock(const int hourValue, const int minuteValue, const int secondValue) : hourValue_(hourValue), minuteValue_(minuteValue), secondValue_(secondValue) {};     virtual std::string ShowTime(void) = 0;    virtual void SetTime(int hourValue, int minuteValue, int secondValue) = 0;     int hourValue_;    int minuteValue_;    int secondValue_;     int GetHour() { return hourValue_; };    int GetMinute() { return minuteValue_; };    int GetSecond() { return secondValue_; };     void SetHour(const int hourValue) { hourValue_ = hourValue; };    void SetMinute(const int minuteValue) { minuteValue_ = minuteValue; };    void SetSecond(const int secondValue) { secondValue_ = secondValue; };}; class DigitalClock final : public Clock { public:    DigitalClock(const int hourValue, const int minuteValue, const int secondValue);     virtual std::string ShowTime(void) override;    virtual void SetTime(const int…

Java program

class Lease{     private String name;     private int aptNumber;     private double rent;     private int term;     private static final int FEE = 10;     public Lease(){        name = "XXX";        aptNumber = 0;        rent = 1000;        term = 12;     }     public void setName(String tenant)  {        name = tenant;     }     public void setAptNumber(int apt){        aptNumber = apt;     }     public void setRent(double monthRent) {        rent = monthRent;     }     public void setTerm(int t){        term = t;     }     public String getName(){        return name;     }     public int getAptNumber(){        return aptNumber;     }     public double getRent(){        return rent;     }     public int getTerm(){        return term;     }     public void addPetFee(){        rent = rent + FEE;     } }    Create a class named TestLease as instructed below:  Instantiate four Lease objects in the main()method.  Change the aptNumber value for the first object to 20  Change the rent value…

public class Employee { } private String Name; private String Surname; private int Age; private String EmployeeNum; public Employee (String Name, String Surname, int Age) { this.Name = Name; this. Surname = Surname; this. Age Age; } public Employee Clone() { Employee copy = new Employee (this. Name, this. Surname, this.Age); return copy; }

interface StudentsADT{void admissions();void discharge();void transfers();  }public class Course{String cname;int cno;int credits;public Course(){System.out.println("\nDEFAULT constructor called");}public Course(String c){System.out.println("\noverloaded constructor called");cname=c;}public Course(Course ch){System.out.println("\nCopy constructor called");cname=ch;}void setCourseName(String ch){cname=ch;System.out.println("\n"+cname);}void setSelectionNumber(int cno1){cno=cno1;System.out.println("\n"+cno);}void setNumberOfCredits(int cdit){credits=cdit;System.out.println("\n"+credits);}void setLink(){System.out.println("\nset link");}String getCourseName(){System.out.println("\n"+cname);}int getSelectionNumber(){System.out.println("\n"+cno);}int getNumberOfCredits(){System.out.println("\n"+credits);   }void getLink(){System.out.println("\ninside get link");}} public class Students{String sname;int cno;int credits;int maxno;public Students(){System.out.println("\nDEFAULT constructor…