[10/13] Java Foundations Certification: OOP Principles

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Build a strong foundation of knowledge in Java programming! Learn the four pillars of the Object-Oriented Programming! Encapsulation, Inheritance, Abstraction and Polymorphism

In the current lesson, you will learn the four pillars of Object-Oriented Programming (OOP).

Svetlin Nakov will explain to you what are the four main OOP Principles. He talks about the concepts of encapsulation, inheritance, abstraction, and polymorphism. Later, you will learn how to compare different objects in Java using equals() and compareTo() methods. Make sure that you understand everything since this is one of the most important topics in the programming world!

You will find many helpful examples and exercises, so make sure to practice what you’ve learned!

As always, we advise you to pause the video right before the solving part of each problem and try to do the exercises on your own first. Then, if you have difficulties, just watch the provided solutions in the video. If you still have questions, we’re always here to help! Join our Facebook group and ask away!

*The exercise descriptions are to be found in the PDF document at the end of this post.

If you are new to programming, make sure to watch the Free Full Java Basics course first, as it is a necessary prerequisite to this one. It explains the topics in a lot more detail, as this video aims to revise them and get to more complex topics after that.
This course is also perfect for people who have some background in programming with a different language and would like to pick up on Java.

Lesson Topics

This video covers the following topics:

1. Principles of OOP

  • Encapsulation
  • Inheritance
  • Abstraction
  • Polymorphism

2. Comparing Objects in Java

  • Using equals() and compareTo() methods
  • Defining equals() and compareTo() methods
 

Remember that coding is a skill, which should be practiced. To learn to code, you should write code, every day, for a long time. Watching tutorials is not enough. You should code! Now it’s your turn. Do your exercises!

Register now and take your free resources right away! You will get access to the 55+ fully automated exercises which will sharpen your coding skills. You will become a member of the SoftUni Global Community and we will provide you the opportunity to communicate with other students and mentors and get help for FREE.

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