Explore the fundamentals of object-oriented programming (OOP) in Java, focusing on the distinctions between primitive data types and objects. Learn to define and create classes and objects and understand the critical components of classes, such as fields, constructors, and methods.

Welcome

Defining a car class

Creating car class object instance

Adding properties

Add properties to car class

Creating a constructor for car class

Adding parameters to car class constructor

Class methods

Working with void methods

Adding class methods with return types

Object-Oriented Programming (OOP) in Java

Deep dive into object-oriented programming by exploring key concepts such as encapsulation, inheritance, and abstraction. Learn how to control access to class members, extend class functionality, and define abstract concepts and contracts that ensure consistency across implementations.

Encapsulation & access modifiers

Public class fields

Creating private properties

Making methods private

Creating a static formula class

Centralising code with inheritance

Inheriting the car class

Making the car class abstract

Creating abstract classes

Implementing abstract methods

Encapsulation & Inheritance

Strengthen your object-oriented programming skills by exploring how Java interfaces and polymorphism work. Learn how to define interfaces and implement them in classes to support flexible behavior. Practice method overriding to customize behavior in subclasses and use method overloading to define multiple forms of a method within the same class. You’ll also explore constructor overloading to enable versatile object creation. These hands-on exercises will help you write more adaptable and reusable Java code.

Interfaces in Java

Creating methods in interfaces

Implementing interface on Tesla class

Introduction to polymorphism

Overriding methods

Overloading methods

Constructor overloading

Wrap-up

Interfaces And Polymorphism

Object-oriented programming (OOP) is a powerful approach to writing organized and scalable software. Java, one of the world’s most popular programming languages, brings OOP to life with clear syntax and strong community support. In this course, you’ll learn how to use Java to model real-world systems using classes, objects, inheritance, encapsulation, and more.

<p>Object-oriented programming (OOP) is a powerful approach to writing organized and scalable software. Java, one of the world’s most popular programming languages, brings OOP to life with clear syntax and strong community support. In this course, you’ll learn how to use Java to model real-world systems using classes, objects, inheritance, encapsulation, and more.</p>

<h2>Build Real-World Java Classes and Objects</h2>
<p>Begin by learning to define classes as blueprints and use them to create object instances. You’ll apply core Java syntax to build reusable components that mirror real-world entities, like cars, passports, and formulas.</p>

<h2>Add Behavior with Constructors and Methods</h2>
<p>Master the use of constructors to initialize object state and explore methods to add behavior. You’ll write both void and return-type methods, helping you create dynamic and interactive programs.</p>

<h2>Secure and Reuse Code with Encapsulation and Inheritance</h2>
<p>Explore how access modifiers control what’s visible to users of your code. Learn how to use inheritance and abstract classes to eliminate duplication and create structured hierarchies.</p>

<h2>Apply Interfaces and Polymorphism</h2>
<p>Use interfaces to add flexibility and implement shared behavior across classes. Finally, unlock the power of polymorphism by overriding and overloading methods for more adaptable software designs.</p>

<p>By the end, you’ll be able to design modular Java applications with clean, object-oriented architecture.</p>


Intermediate Java

Learn key object-oriented programming concepts, from basic classes and objects to advanced topics like inheritance and polymorphism. 

Introduction to Object-Oriented Programming in Java

Java Fundamentals

Lead Software Engineering Content Developer

Chapter 1 - object-oriented programming (OOP) Java introduction

Chapter 2 - encapsulation and inheritance

Chapter 3 - interfaces and polymorphism

Next steps

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Interfaces And Polymorphism - Wrap-up

Wrap-up

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