Given the following class definition, what is missing? class ItemClass { public: ItemClass(int newSize, float newCost); int getSize(); float getCost(); void setSize(int newSize); void setCost(float newCost); private: }; int size; float cost; OA) accessor functions B) mutator functions OC) nothing OD) a default constructor

Given the following class definition, what is missing? class ItemClass { public: ItemClass(int newSize, float newCost); int getSize(); float getCost(); void setSize(int newSize); void setCost(float newCost); private: }; int size; float cost; OA) accessor functions B) mutator functions OC) nothing OD) a default constructor

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Defining Classes Write and document the definition for the Product class. Each Product object has three instance variables: description, productNumber and price. The class has one constructor that takes three parameters in the order productNumber, description and price. The class has one accessor method named getCost(int qty) which returns the price for qty items of the Product. The class has two mutator methods—setPrice() and setDescription()—that modify the corresponding instance variables. The class has a toString() method that returns the Product as a String in the form: 34567: Small Toaster, $ 17.95. Note: use concatenation to construct the returned string. Do not use the String.format() method to format the returned value.
Library Information System Design and Testing Library Item Class Design and TestingDesign a class that holds the Library Item Information, with item name, author, publisher. Write appropriate accessor and mutator methods. Also, write a tester program(Console and GUI Program) that creates three instances/objects of the Library Items class. Extending Library Item Class Library and Book Classes: Extend the Library Item class in (1) with a Book class with data attributes for a book’s title, author, publisher and an additional attributes as number of pages, and a Boolean data attribute indicating whether there is both hard copy as well as eBook version of the book. Demonstrate Book Class in a Tester Program (Console and GUI Program) with an object of Book class.
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 */ } };
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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?
Consider the following class definition: class circle { public: void print() const; void setRadius(double); void setCenter(double, double); void getCenter(double&, double&); double getRadius(); double area(); circle(); circle(double, double, double); double, double); private: double xCoordinate; double yCoordinate; double radius; } class cylinder: public circle { public: void print() const; void setHeight(double); double getHeight(); double volume(); double area(); cylinder(); cylinder(double, double, private: double height; } Suppose that you have the declaration: cylinder newCylinder; Write the definitions of the member functions of the classes circle and cylinder. Identify the member functions of the class cylinder that overrides the member functions of the class circle
7. public class Father { public String name; public int age; // customer name Father(){ name="Hassan"; age=50;} public void display(){ System.out.println("Name:"+name); System.out.println("Age:"+age); }} Figure 3 i. Based on Figure 3, create a class named Child that inherits the Father class. Declare an instance name location (String) for class Child. ii. Define a constructor in class Child and give an appropriate initial values for the instance (name, age, location). Define a method display () in class Child, execute the display () method in superclass using the keyword super. Method display () in class Child should print the information of name, age and location. ii.
Problem: Employee personal Information system Super Class : Personal Attributes : Methods Name, Age, Address, Phone number Set the personal details values Display the personal details Sub class : Employee Attributes : employeeid, department, salary Methods : Set the values of employeeid, department, salary Calculate the Gross_Salary and retun the gross salary Display the employee details Driver Class : • Display the personal details and employee details. The following information are required for the assignment Properties with proper data types Methods with proper return types and scope Demonstration of OOP feature (Inheritance) Demonstration of user defined package Proper naming convention Proper comments in each program and within program Purpose of each code should be explained. Program Execution (output) Presentation (Word Document) 56S17108
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(){…
C# List the differences between CommissionEmployee class and BasePlusCommissionEmployee class public class BasePlusCommissionEmployee { public string FirstName { get; } public string LastName { get; } public string SocialSecurityNumber { get; } private decimal grossSales; private decimal commissionRate; private decimal baseSalary; public BasePlusCommissionEmployee(string firstName, string lastName, string socialSecurityNumber, decimal grossSales, decimal commissionRate, decimal baseSalary) { FirstName = firstName; LastName = lastName; SocialSecurityNumber = socialSecurityNumber; GrossSales = grossSales; CommissionRate = commissionRate; BaseSalary = baseSalary; } public decimal GrossSales { get { return grossSales; } set { if (value < 0) // validation { throw new ArgumentOutOfRangeException(nameof(value),…
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…
8. Python concer # TODO: Define BankAccount class # TODO: Define constructor with parameters to initialize instance attributes # TODO: Define deposit_checking() # TODO: Define deposit_savings() # TODO: Define withdraw_checking() # TODO: Define withdraw_savings() # TODO: Define transfer_to_savings() if __name__ == "__main__": account = BankAccount("Mickey", 500.00, 1000.00) account.checking_balance = 500 account.savings_balance = 500 account.withdraw_savings(100) account.withdraw_checking(100) account.transfer_to_savings(300) print(account.name) print('${:.2f}'.format(account.checking_balance)) print('${:.2f}'.format(account.savings_balance.