What exactly is meant by the term "polymorphism?"

(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…

(Composition as an Alternative to Inheritance) Many programs written with inheritancecould be written with composition instead, and vice versa. Rewrite class BasePlusCommissionEmployee of the CommissionEmployee–BasePlusCommissionEmployee hierarchy to use compositionrather than inheritance. After you do this, assess the relative merits of the two approaches for designing classes CommissionEmployee and BasePlusCommissionEmployee, as well as for object-oriented programs in general. Which approach is more natural? Why?

(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…

What does operator and function overloading imply? What are the benefits?

oop 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.

(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.)

Java 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.

Explain the type of inheritance with the examples.   (Use C++)