Free
CourseLearn Java: Classes, Methods, Inheritance, and Polymorphism
Take a deeper look into Java classes and methods and learn the basics of encapsulation.
Skill level
BeginnerTime to complete
Approx. 5 hoursCertificate of completion
Included with paid plansPrerequisites
2 coursesWe suggest you complete the following courses before you get started with Learn Java: Classes, Methods, Inheritance, and Polymorphism:- Learn Java: Object-Oriented Programming
- Learn Java: Conditionals and Operators
About this course
In this course, we’re going to take a deep dive into Java classes. We’ll look at how to set the access of class variables and methods, discuss the concept of encapsulation, and write our own static methods. Then we’ll see how all Objects are related to each other through the concept of inheritance and how they can act like two different objects using polymorphism.
Skills you'll gain
Use accessor and implementor methods
Understand the concept of scope
Override methods
Syllabus
4 lessons • 2 projects • 4 quizzesThe platform
Hands-on learning
Don’t just watch or read about someone else coding — write your own code live in our online, interactive platform. You’ll even get AI-driven recommendations on what you need to review to help keep you on track.
Projects in this course
- Project
Language Families
Develop a Java model for tracking traits across language families. - Project
DNA Sequencing
The sheer size of the genome makes it difficult, if not impossible, to analyze by hand. The human genome, for example, contains 3 billion nucleotides. Thus, finding any information in the genome requires computational approaches. In this project, use Java string methods to find a protein in a strand of DNA.
Learn Java: Classes, Methods, Inheritance, and Polymorphism course ratings and reviews
134 ratings
- 5 stars
- 4 stars
- 3 stars
- 2 stars
- 1 star
- The progress I have made since starting to use codecademy is immense! I can study for short periods or long periods at my own convenience - mostly late in the evenings.ChrisCodecademy Learner @ USA
- I felt like I learned months in a week. I love how Codecademy uses learning by practice and gives great challenges to help the learner to understand a new concept and subject.RodrigoCodecademy Learner @ UK
- Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.John-AndrewCodecademy Learner @ USA
Our learners work at
Unlock additional features with a paid plan
Practice Projects
Guided projects that help you solidify the skills and concepts you're learning.Assessments
Auto-graded quizzes and immediate feedback help you reinforce your skills as you learn.Certificate of Completion
Earn a document to prove you've completed a course or path that you can share with your network.
Join over 50 million learners and start Learn Java: Classes, Methods, Inheritance, and Polymorphism today!
Start