Course: C++ Inheritance & Polymorphism

$209.00

$252.89 incl. vat

duration: 12 hours |

Language: English (US) |

access duration: 90 days |

Details

In this course, you’ll start with C++ inheritance and you’ll move on to Polymorphism. Inheritance is a powerful, object-oriented language construct in which one class can be related to another class using an is-a relationship. Using Inheritance, you can construct complicated class hierarchies in which one class is a parent or a base of another class. In addition, you’ll learn in which order constructors and destructors are invoked on an object of a derived class in an inheritance hierarchy.

Inheritance forms the basis for Polymorphism, specifically runtime Polymorphism, which is a powerful object-oriented programming construct. Runtime Polymorphism involves a pointer or a reference of the base class type holding an object of the derived class. Moreover, you’ll learn about pure virtual functions, abstract classes, multiple inheritance and diamond hierarchy to get a cohesive understanding of all the possibilities C++ offers.

Result

After completing this course, you can make optimal use of all C++ Inheritance and Polymorphism offers. It supports the concept of reusability and reduces code length in object-oriented programming and allows the object to decide which form of the function to implement at compile-time (overloading) as well as run-time (overriding).

Prerequisites

To begin this course, you should have sufficient basic knowledge of C++.

Target audience

Software Developer, Web Developer

Content

C++ Inheritance & Polymorphism

12 hours

C++ Inheritance & Polymorphism: Using Inheritance for is-a Relationships

Inheritance is a powerful, object-oriented language construct in
which one class can be related to another class using an is-a
relationship. Using inheritance, you can construct complicated
class hierarchies in which one class is a parent or a base of
another class. Is-a relationships are a great way of performing
object-oriented design and are complemented by has-a relationships,
which are implemented using composition, rather than inheritance.
Explore inheritance relationships by setting up an inheritance
hierarchy in C++ and specifying one class as the parent of another
class. Then discover how member variables and methods are
accessible from the drive class, as well as from external code.
Finally, investigate base class access specifiers, and find out how
they work with member access specifiers. When you’re finished,
you’ll clearly understand how to use inheritance for is-a
relationships and how to identify uses for private inheritance.

C++ Inheritance & Polymorphism: Constructors, Destructors, & Inheritance

The order in which constructors and destructors are invoked on
an object of a derived class in an inheritance hierarchy is a very
important topic. Constructors are invoked in order from the
top-most (most base-level) class, down to the most derived class.
Destructors are invoked in the reverse order. Explore how
constructors work in an inheritance hierarchy, the order in which
the base and derived class constructors are invoked, and how
initialization lists need to be used in the derived class. Discover
how to use copy constructors and destructors in the context of
inheritance. Learn how to set up an inheritance hierarchy for
polymorphism. Finally, practice using objects in an inheritance
hierarchy with variables of pointer and reference types. When you
finish this course, you will have a solid foundation in
constructors, destructors, and inheritance, setting the stage for
runtime polymorphism and dynamic method dispatch.

C++ Inheritance & Polymorphism: Understanding & Using Polymorphism

Inheritance forms the basis for polymorphism, specifically
runtime polymorphism, which is a powerful object-oriented
programming construct. Runtime polymorphism involves a pointer or a
reference of the base class type holding an object of the derived
class. The beauty of runtime polymorphism is that when virtual
methods are invoked on this pointer, the derived class versions are
executed. You will start this course by defining name hiding and
how most methods on C++ objects are, by default, statically
dispatched. You will then learn about polymorphism and dynamic
dispatch, which is accomplished using the virtual keyword. Finally,
you will learn how the ‘override’ and 'final' specifications can be
used to achieve precise semantics and reduce the scope of bugs and
typos in your C++ programs.

C++ Inheritance & Polymorphism: Pure Virtual Functions & Abstract Classes

Pure virtual functions and interfaces are very powerful tools in
object-oriented programming, and interface-driven programming is a
great way of splitting up work across different developers on a
large project. You will start this course by considering why your
destructors should be marked as virtual in the base class if you
have an inheritance hierarchy. You’ll see the harmful effects of
not using virtual destructors in an inheritance hierarchy and the
problems with object slicing. You will also learn why it is
preferable to have variables of reference types to the base class
rather than the value types. You will then move to some finer
points of working with virtual methods, such as, the inadvisability
of using default parameters because these are statically bound.
Finally, you will master the syntax and semantics of pure virtual
functions and learn how a class that contains even one pure virtual
function becomes an abstract class that cannot be instantiated
directly.

C++ Inheritance & Polymorphism: Multiple Inheritance & the Diamond Hierarchy

C++ allows multiple inheritance, which means that one class can
have more than one base. C++ also has some powerful mechanisms for
dealing with edge cases such as the diamond hierarchy. You will
start this course by learning the precise syntax which is required
to implement multiple inheritance in C++, specifically, how it’s
important to have both base class access specifiers marked
independently. You will then move on to the topic of a diamond
inheritance hierarchy, in which the grandchild-level derived class
has two parents, both of which inherit from the common, grandparent
level base class. Finally, you will see how dynamic casts work in
the context of an inheritance hierarchy, how these are a lot safer
than static casts, and how they return a null value on failure when
used with pointers but they throw an exception on failure when used
with references.

We offer several optional training products to enhance your learning experience. If you are planning to use our training course in preperation for an official exam then whe highly recommend using these optional training products to ensure an optimal learning experience. Sometimes there is only a practice exam or/and practice lab available.

Optional practice exam (trial exam)

To supplement this training course you may add a special practice exam. This practice exam comprises a number of trial exams which are very similar to the real exam, both in terms of form and content. This is the ultimate way to test whether you are ready for the exam.

Optional practice lab

To supplement this training course you may add a special practice lab. You perform the tasks on real hardware and/or software applicable to your Lab. The labs are fully hosted in our cloud. The only thing you need to use our practice labs is a web browser. In the LiveLab environment you will find exercises which you can start immediately. The lab enviromentconsist of complete networks containing for example, clients, servers,etc. This is the ultimate way to gain extensive hands-on experience.

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Course: C++ Inheritance & Polymorphism

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Prerequisites

Target audience

C++ Inheritance & Polymorphism

C++ Inheritance & Polymorphism: Using Inheritance for is-a Relationships

C++ Inheritance & Polymorphism: Constructors, Destructors, & Inheritance

C++ Inheritance & Polymorphism: Understanding & Using Polymorphism

C++ Inheritance & Polymorphism: Pure Virtual Functions & Abstract Classes

C++ Inheritance & Polymorphism: Multiple Inheritance & the Diamond Hierarchy

Optional practice exam (trial exam)

Optional practice lab

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