Abstract Classes Courses and Certifications

C#/.NET - 50 Essential Interview Questions (Junior Level)

658 ratings at Udemy

Get ready for your next interview. An in-depth guide to C# fundamentals, SOLID principles and popular design patterns.

• Udemy
• 6 hours 40 minutes
• On-Demand
• Paid Course

Ultimate Java Development and Certification Guide

324 ratings at Udemy

Learn to program in java and become a Oracle Java certified developer

• Udemy
• 10 hours
• On-Demand
• Paid Course

Object-Oriented Hierarchies in Java

186 ratings at Coursera

Explore inheritance, polymorphism, and interfaces in Java. Deepen your understanding of object-oriented programming concepts and their effective implementation in real-world scenarios.

• Coursera
• 20 hours 29 minutes
• On-Demand
• Free Online Course (Audit)

Java and Object Oriented programming Essential Training

96 ratings at Udemy

Learn Java fundamentals and object-oriented programming concepts. Master variables, data types, control flow, methods, classes, inheritance, polymorphism, and interfaces. Create your own applications using practical coding examples.

• Udemy
• 2 hours 38 minutes
• On-Demand
• Paid Course

Programming with Java

Explore advanced Java OOP, exception handling, file operations, and serialization. Develop robust, efficient applications with practical skills in code organization, error management, and data persistence.

• Coursera
• 1 day 2 hours 36 minutes
• On-Demand
• Free Online Course (Audit)

Dart for Beginners

5 reviews

Learn Dart programming from basics to advanced concepts, including OOP, asynchronous programming, and practical projects like building a Tetris game and a Todo app.

• YouTube
• 6 hours
• On-Demand
• Free Video

Modelling object-oriented software – an introduction

How do you model a software system? This free course, Modelling object-oriented software an introduction, will help you to work through the processes necessary to produce a conceptual model, by ...

• OpenLearn
• 20 hours
• Finished
• Free Certificate

Great Learning

OOPS Concept in Java - Object Oriented Programming - Java for Beginners

3 reviews

Comprehensive tutorial on object-oriented programming in Java, covering classes, inheritance, abstract classes, interfaces, and collections. Ideal for beginners and interview preparation.

• YouTube
• 1 hour 27 minutes
• On-Demand
• Free Video

AP Computer Science A: Java Programming Polymorphism and Advanced Data Structures

Explore advanced Java programming concepts including polymorphism, exceptions, and dynamic data structures. Master OOP strategies and algorithms for efficient coding.

• edX
• 6 weeks, 5-10 hours a week
• On-Demand
• Free Online Course (Audit)

Working with Classes and Interfaces in Java

360 ratings at Pluralsight

This course provides you with everything you need to know to begin working with Java’s rich type system and serves as a strong foundation for all Java-based development environments including client-based, server-side, Android, and big data.

• Pluralsight
• 4 hours 47 minutes
• On-Demand
• Free Trial Available

OOP (course 3): Inheritance, Abstract Classes, Interfaces and other amazing things

Explore advanced OOP concepts like inheritance, abstract classes, and interfaces. Learn to leverage these powerful features to create flexible and robust object-oriented code.

• SymfonyCasts
• 56 minutes
• On-Demand
• Paid Course

Python Object-Oriented Programming for Java Developers

41 ratings at LinkedIn Learning

Learn about the object-oriented programming (OOP) features in newer versions of Python and compare them with Java’s capabilities to help you grasp the concepts and syntax.

• LinkedIn Learning
• 1 hour 7 minutes
• On-Demand
• Free Trial Available

Object-Oriented Programming in Kotlin

10 ratings at Pluralsight

Kotlin is an object-oriented language in the same style as Java, but also offers features found in newer languages like C# and TypeScript. This course will teach you to write a Kotlin application and make use of all the language.

• Pluralsight
• 6 hours 11 minutes
• On-Demand
• Free Trial Available

Inheritance in Java Course (How To)

42-minute Java course: In this course we'll learn how to use inheritance to use one class as the foundation for another!

• Treehouse
• 42 minutes
• On-Demand
• Free Trial Available

Designing Interfaces in PHP Course (How To)

137-minute PHP course: An interface is a type of contract that assures that certain abilities are available on on a particular object class. We'll ...

• Treehouse
• 2 hours 17 minutes
• On-Demand
• Free Trial Available