Course: Java OOP

$359.00
$434.39 incl. vat

duration: 14 hours |

Language: English (US) |

access duration: 180 days |

Details

This course will teach you all about Java Object-Oriented programming (OOP) tools and features. Start this course by exploring the basics of inheritance and run-time polymorphism in Java, and how these concepts can be used to model Is-A relationships. You’ll also learn about the role of constructors, overriding, and multi-level and hiding Inheritance. Next, you will explore final and abstract keywords, and regulation access.

Result

After completing this course, you are ready to use Java OOP to the fullest.

Prerequisites

No formal prerequisites. Some experience with Java OOP is recommend.

Target audience

Software Developer, Web Developer

Content

Java OOP

14 hours

Java OOP: Understanding Inheritance & Polymorphism in Java

  • In this course, you will explore the basics of inheritance and

  • run-time polymorphism in Java, and how these concepts can be used
  • to model Is-A relationships. Begin with an introduction to
  • inheritance, and how to identify its advantages and applications.
  • You will then apply inheritance to model real-world entities. Next,
  • learn the concepts of polymorphism, its advantages and
  • applications. Then move on to recognizing how the methods derived
  • from java.lang.Object work, and also how all built-in Java classes
  • possess the methods derived from java.lang.Object. You will examine
  • how objects of derived classes have independent copies of member
  • variables, even from the derived class. Following an introduction
  • to the Is-A relationship, you will learn how to recognize, in
  • single inheritance, that every object of the derived class is an
  • object of the base class, but not every object of the base class is
  • an object of the derived class. Explore how to upcast and downcast,
  • and learn how downcasting can sometimes be dangerous. Finally,
  • learn how one base class can be created with multiple derived
  • classes.

Java OOP: The Role of Constructors in Inheritance

  • In this course, you will learn the role of constructors and how

  • to use the super keyword in architecting inheritance hierarchies in
  • Java. You will begin by identifying the role of access modifiers
  • and recognizing the basics of superclass constructors. When you add
  • your own constructor, you will see that Java takes away the default
  • no-argument constructor it had provided. You will learn how to
  • apply the two ways of initializing derived classes: implement an
  • explicit no argument constructor in the base class or use the super
  • keyword and have only parameterized constructors in both the base
  • and derived classes. You will recognize that a base class's
  • constructor is invoked when a derived class object is instantiated
  • and identify what happens when there is a base and derived class
  • that have many different constructors. You will be able to
  • initialize member variables: add a member variable into a derived
  • class and ensure it is correctly initialized, even in addition to
  • any invocations of the base class constructor.

Java OOP: Multi-level Inheritance

  • In this course, you'll focus on the creation of multilevel

  • inheritance in Java and how such hierarchies include child and
  • grand-child classes that all inherit from a common ancestor base
  • class. You'll explore various types of cast operations, how both
  • upcast and downcast operations have their applications, and how
  • downcast operations need to be performed with great care.

Java OOP: Run-time & Compile-time Polymorphism

In this course, you'll learn about specific contrasts between run-time, compile-time polymorphism, and inheritance hierarchy in Java, including the use of the @Override annotation and type promotions in method overloading.

Java OOP: Understanding Overriding & Hiding in Inheritance

In this course, you'll learn about method overriding, including the use of the super keyword from contexts other than within constructors. You'll also examine the somewhat surprising behavior of static methods, owing to the fact that these are statically bound.

Java OOP: The Semantics of the final & abstract Keywords

  • In this course, participants learn about two specific and

  • important aspects of Java—the final and abstract keywords. The
  • final keyword can be used to mark member variables, member
  • functions, and even entire classes, with different meanings in each
  • context. You will discover how to mark variables as final, and the
  • implications of doing so. Learn how to correctly instantiate final
  • arrays. Remember that arrays are reference types, pointing to a
  • block of memory, and remember that once an array has been marked as
  • final, it can only be initialized once. Discover how to create and
  • use final classes and final methods. Final classes cannot be
  • extended. You will learn to recognize the implications of defining
  • a class as abstract. Also, learn how to extend abstract classes and
  • the implications of doing so. As the course concludes, you will
  • discover that a class can only be instantiated if it has
  • implemented all abstract methods.

Java OOP: Access Modifiers for Regulating Access

In this course, you'll learn about access modifiers that can be used to tag member variables and member functions inside Java classes to regulate how these can be accessed from different contexts.

Java OOP: Interfaces & Anonymous Classes

In this course, you'll learn about one of the most important concepts in all of object-oriented programming - the interface. You'll explore how anonymous inner classes provide lightweight instantiations of interfaces.

Course options

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 immediatelyThe 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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