C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Describe how polymorphism enables you to program "in the general" rather than "in the specific"? Give some examples, not the ones used in the book (C++ How to Program by Paul J. Deitel, Harvey Deitel Tenth Edition).
(JAVA) What is code refactoring?
Group of answer choices
A)None of the options are correct.
B) It is changing implementation of a method or constructor of a class, while leaving the declaration the same, allowing all users of that class to continue using the class without noticing the change.
C)It is abstracting a class so that common elements with another class are moved into the abstract class that both classes extend.
D) It is declaring all the methods that need to be supported in an interface. This guarantees that all classes implementing this interface will support those methods.
(Java)
The Abstract Art Class
Write an abstract class as follows:
The class is named Art
It inherits from the Comparable interface
It has a private String member variable named name
It has a private String member variable named artist
It has a private int member variable called year
It has a default constructor that assigns the values "No name" to name, "No artist" to artist and -1 to the year. This default constructor calls the three argument constructor.
It has a three-argument constructor to assign values to the name, artist and year variables.
It has a copy constructor that makes a copy of another non-null Art object
It has getters and setters for the name, artist and year variables
It has a toString() method that creates a string of artist, with name and year tabbed once on subsequent lines (see sample output)
It has an equals method that compares this Art to another Object
It has a compareTo method that compares in this order: 1) artist, 2) name, 3) year
This class contains no…
Chapter 12 Solutions
C++ How to Program (10th Edition)
Ch. 12 - (Programming in the General) How is it that...Ch. 12 - (Polymorphism vs. switch logic) Discuss the...Ch. 12 - (Inheriting Interface vs. Implementation)...Ch. 12 - Prob. 12.6ECh. 12 - Prob. 12.7ECh. 12 - Prob. 12.8ECh. 12 - Prob. 12.9ECh. 12 - (Polymorphic Application) You've been asked to...Ch. 12 - (Payroll-System Modification) Modify the payroll...Ch. 12 - Prob. 12.12E
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- (Package Inheritance Hierarchy) Package-delivery services, such as FedEx® ,DHL®and UPS® ,offer a number of different shipping options, each with specific costsassociated. Create an inheritance hierarchy to represent various types of packages. Useclass Package as the base class of the hierarchy, then include classes TwoDayPackageand OvernightPackage that derive from Package.Base class Package should include data members representing the name, address, city,state and ZIPcode for both these sender and the recipient of the package, in addition todata members that store the weight (in ounces)and cost per ounce to ship the package.Package’s constructor should initialize these data members. Ensure that the weight andcost per ounce contain positive values. Package should provide a public memberfunction calculate Cost that returns a double indicating the cost associated with shippingthe package. Package’s calculate Cost function should determine the cost bymultiplying the weight by the cost per…arrow_forwardWhat does operator and function overloading imply? What are the benefits?arrow_forwardoop using c++ please give me full answer thanks Write a Program that implements Base class calculator and a Derived class scientific calculator, The Derived class should take the basic operations i.e. add, divide, subtract from calculator. However it should have its own methods such as square root.arrow_forward
- (Richer Shape Hierarchy) The world of shapes is much richer than the shapes included inthe inheritance hierarchy of Fig. 19.3. Write down all the shapes you can think of—both two-dimensional and three-dimensional—and form them into a more complete Shape hierarchy with asmany levels as possible. Your hierarchy should have the base class Shape from which class TwoDimensionalShape and class ThreeDimensionalShape are derived. [Note: You do not need to write any codefor this exercise.] We’ll use this hierarchy in the exercises of Chapter 20 to process a set of distinctshapes as objects of base-class Shape. (This technique, called polymorphism, is the subject ofChapter 20.)arrow_forwardJava Assignment: Experiment with naming rules in Java Does the language use static or dynamic scoping? Can scopes nest? Are they open or closed? Does the scope of a name encompass the entire block in which it is declared, or only the portion after the declaration? How does one declare mutually recursive types or subroutines? Can subroutines be passed as parameters, returned from functions, or stored in variables? If so, when are referencing environments bound? Justify your answers with suitable code snippet and its output.arrow_forwardExplain the type of inheritance with the examples. (Use C++)arrow_forward
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