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Consider the definition of the following class: (1, 2, 3, 5, 7)
Give the line number containing the constructor that is executed in each of the following declarations.
Write the definition of the constructor in Line 4 so that the instance variables are initialized to “ “, “ “, “ “, 0, 0.0, and 0.0, respectively.
Write the definition of the constructor in Line 5 so that the string instance variables are initialized to””, and the other instance variables are initialized according to the parameters. Instance variables quantitieslnStock, price, and discount must be nonnegative.
Write the definition of the constructor in Line 6 so that the instance variables productName and manufacturer are initialized to the empty string, instance variable id is initialized according to the first parameter, and the remaining instance variables are initialized according to the last three parameters. Instance variables quantitieslnStock, price, and discount must be nonnegative.
Write the definition of the constructor in Line 7 so that the instance variables are initialized according to the parameters. Instance variables quantitieslnStock, price, and discount must be nonnegative.
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Chapter 10 Solutions
C++ Programming: From Problem Analysis to Program Design
- Chapter 10 defined the class circleType to implement the basic properties of a circle. (Add the function print to this class to output the radius, area, and circumference of a circle.) Now every cylinder has a base and height, where the base is a circle. Design a class cylinderType that can capture the properties of a cylinder and perform the usual operations on the cylinder. Derive this class from the class circleType designed in Chapter 10. Some of the operations that can be performed on a cylinder are as follows: calculate and print the volume, calculate and print the surface area, set the height, set the radius of the base, and set the center of the base. Also, write a program to test various operations on a cylinder.arrow_forwardCreate an abstract super class called Employee with the following attributes: Use JavaDoc comments in the Parent and Child Classes only but use @author for the driver name : String and the following methods getter and setter for the one attribute two constructors an abstract method called getPay() equals() toString() Create a sub class of Employee called SalaryEmployee with the following attribute yearlyPay : double and the following methods getter and setter for the one attribute two constructors getPay() that returns the yearlyPay divided by 52 equals() toString() Create a sub class of Employee called HourlyEmployee with the following attributes: hoursWorked : double payrate : double and the following methods getters and setters for the two attributes two constructors getPay() that returns the weekly pay (multiply hoursWorked by payrate - overtime included and 1.5 times payrate for hours > 40) equals() toString() Create a sub class of Employee called SalesEmployee with the…arrow_forwardSubject : object Orieted Programing ..Netbean Java Q: Write down an abstract class Time1 having attributes (hours, minutes, seconds), containing no argument constructor, 3 argument constructor. Write down an abstract function time() that increments seconds by 1 if seconds are equal to 60 then increment minutes by 1 and set seconds to 0. If minutes become equal to 60 then increment hours by 1 and set minutes to 0. Write a function that compare 2 time objects and return true if they are equal otherwise returns false.arrow_forward
- A class called Book is designed (as shown in the class diagram) to model a book written by one author. It contains: Four private instance variables: name (String), price (double) static, and qty (int); Two constructors: public Book (String name, double price) { ...... } public Book (String name, double price, int qty) { ...... } getters/setters methods getName(), getPrice(), setPrice(), getQty(), setQty(). A toString() that returns book values. A class called Author is designed to model a book's author. It contains: Four private instance variables: name (String), email (String), and gender (char of either 'm' or 'f') and arrayList of Books. One constructor to initialize the name, email and gender with the given values; public Author (String name, String email, char gender) {......} public getters/setters. A toString() method that returns author object. A method addBook(Book b) which will add book in the Arraylist of books.…arrow_forward1. Create abstract class Pet , which is the abstract super class of all animals.1. Declare an integer attribute called legs, which records the number of legs for this animal.2. Define a constructor that initializes the legs attribute.3. Declare an abstract method eat.4. Declare a concrete method walk that prints out something about how the animals walks (include the number of legs).2. Create the Dog class that implements Pet class.1. This class must include a String attribute to store the name and food of the pet2. Define a default constructor that calls the super class constructor to specify that all dogs have 4 legs and name.3. override the eat and walk method.3. Create the Cat class that Implements Pet class.1. This class must include a String attribute to store the name of the pet, and a string to save food .2. Define a constructor that takes one String parameter that specifies the cat's name. This constructor must also call the super class constructor to specify that all cats have…arrow_forward1. Define an interface Measurable. It has a single abstract method: double getArea(); 2. Define an abstract class Shape which has two fields: type and name both of type Strin a. Provide constructor with a single input parameter: name. b. Provide accessor methods for both fields. C. Provide setter method for name. d. Provide toString() method that simply returns the "(type): (name)" e. Shape class implements Measurable interface without implementing its only abs method. 3.arrow_forward
- 1). Write a java abstract class called Solid and you will derive two classes – Cylinder and Sphere – from Solid. The class Solid Member variables type whose data type is String. For example, the type could be sphere, cube, parallelepiped. 2). The methods should include: A default or null constructor A constructor that initializes the value of type Getters and Setters An abstract method to find volume whose signature is public abstract double findVolume(); An abstract method to find surface area whose signature is public abstract double findSurfaceArea() a toString method that returns a string like the following Solid Type: Sphere an equals method that returns true if two Solid objects have the same type and false otherwise. 3). The class Cylinder - Cylinder will extend Solid Member variables: Cylinder inherits type from Solid radius of type double height of type double Methods: a default or null constructor a constructor that initializes type, radius, and height. type will always…arrow_forward1). Write a java abstract class called Solid and you will derive two classes – Cylinder and Sphere – from Solid. The class Solid Member variables type whose data type is String. For example, the type could be sphere, cube, parallelepiped. 2). The methods should include: A default or null constructor A constructor that initializes the value of type Getters and Setters An abstract method to find volume whose signature is public abstract double findVolume(); An abstract method to find surface area whose signature is public abstract double findSurfaceArea() a toString method that returns a string like the following Solid Type: Sphere an equals method that returns true if two Solid objects have the same type and false otherwise. 3). The class Cylinder - Cylinder will extend Solid Member variables: Cylinder inherits type from Solid radius of type double height of type double Methods: a default or null constructor a constructor that initializes type, radius, and height. type will always…arrow_forwardJava program: The class diagram with four classes Mammal, Human, Student and Doctor is given. The Mammal class is given as well. Write down the remaining classes as described in the class diagram. The fields and methods for each class is given in the attachment. //in Mammel.java Public interface Mammal{ public double hairColor(): } 1. Class Human: Fields: age(int), weight(double), height(double) Methods: getAge, getWeight, getHeight 2. Class Student: Fields: major (String), gpa (double), creditHours (int) methods: getMajor: returns major, getGpa: returns gpa, getYear: returns freshman, sophmore, junior, senior as determined by earned credit hours Freshman : less than 32 credit hours sophmore: at least 32 but less than 64 credit hours junior: at least 64 credit hours but less than 96 credit hours senior: at least 96 credit hours 3.Class Doctor: Fields: years(int), Speciality (String) methods: getYears: returns years, getSpeciality: returns speciality, getSalary: calculates…arrow_forward
- Write a program to computerize the billing system of a hospital. a) Design the personType class as shown below: PersonTye -firstname: String -lastname: String +print(): void +setNAme(string, string) : void +getFirstName() : string +getLastName() : string +abstract personType(): string b) Design the class doctorType, inherited from the class personType with an additional data member to store a doctor’s speciality. Add appropriate constructors and member functions to initialize, access, and manipulate the data members and this class should implement abstract method of class PersonType. c) Design the class billType with data members to store a patient’s ID and a patient’s hospital charges, such as pharmacy charges for medicine, doctor’s fee, and room charges. Add appropriate constructors and member functions to initialize and access and manipulate the data members. d) Design the class patientType, inherited…arrow_forwardobject oriented programming (oop) please give me full answer thanks Learning Objective:1. Classes and Object Creation 2. Access specifies. How to use it? 3. What is Constructor. 4. Practical walk through. 5. ExercisesClasses and Objects A class is like a blueprint of data member and functions and object is an instance of class. For example, let’s say we have a class Car which has data members (variables) such as speed, weight, price and functions such as gearChange(), slowDown(), brake() etc. Now let’s say I create a object of this class named FordFigo which uses these data members and functions and give them its own values. Similarly, we can create as many objects as we want using the blueprint(class)class Car { //Data members char name[20]; int speed; int weight; public: //Functions void brake(){ } void slowDown(){ } }; int main() { //ford is an object Car ford; } Access specifies (Private, Public and protected) The body of the class contains two unfamiliar keywords: private and…arrow_forwardModel a room class, whose member data is three integers length, width and height. The classcontains two constructors to initialize the room class objects, first is no argumentconstructor, while the second in three arguments constructor. Class also contains threemember functions i.e., getdatat) to get the data from user and store in the memory of callingobject and showdata) to show the room data of calling object, int volume(int I, int w, int h)function should receive the length, width and height values from the objects one by one andreturn the volumes of the three objects respectively.Write a main program to declare the three object rl, 12, and 13 of room class. Two objectwill store the values through three argument constructor and third object will get the datafrom user by calling getdata function. Then all three objects should call the volumefunctions to calculate their volumes and store them in three variables of type integer. Finallythe system compare the three volumes values…arrow_forward
C++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT