Learn Java

Created by Codecademy, this 25-hour class covers a full introduction to Java and object-oriented programming. It covers seven different coding projects to take you from the absolute beginning into basic proficiency. You can explore the free version or upgrade to the pro version to attain additional resources.

Produced in 2016

What you will learn

  • Hello World! The classic first lesson in any coding adventure.
  • Variables and data types for basic Java coding.
  • Basics of object-oriented Java.
  • How to use conditionals and control flow.
  • Arrays, arraylists and their applications.
  • Loops and efficient conditional task flow.
  • String methods and object management.
  • Inheritance and polymorphism and the fundamentals of object-oriented principles.
  • Debugging.

Quality Score

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Overall Score : 68 / 100

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Course Description

java Awards Best Practical Course

Java is among the most popular programming languages out there, mainly because of how versatile and compatible it is. Java can be used for a large number of things, including software development, mobile applications, and large systems development. As of 2019, 88% market share of all smartphones run on Android, the mobile operating system written in Java. Knowing Java opens a great deal of doors for you as a developer.Take-Away SkillsIn this course you'll be exposed to fundamental programming concepts, including object-oriented programming (OOP) using Java. You'll build 7 Java projects - like a basic calculator - to help you practice along the way.



    • The free version covers all of the material.
    • No specialized software is needed for IDE. The entire program is in-browser.
    • Massive student community provides help and support at any and every point in the program.
    • Codecademy offers similar courses in every major coding language.
    • Lesson paces can feel slow as the program only covers introductory material.
    • Free version does not supply specific help if you get stuck.
    • Not designed for people with coding experience.
    • Course is insufficient to develop complete proficiency with Java.
    • Additional learning will be necessary.



7 total reviews

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By CyanideCloud on 4/13/2016

As somebody who already knows Java, I tried out CodeAcademy to see what the fuss is all about, and I think it is horrible. Don't get me wrong, it's a well put together website and the order it introduces concepts in is great, but you'll probably never get anything more than an ultra-basic understand of the language.

By throwaway_for_cause on 12/22/2017

With CodeCademy, you have learnt Java syntax, but not actually Java programming. You need a proper course to teach you so that you can actually program.

By desrtfx on 7/4/2017

Codecademy may be good for simple languages, like HTML and CSS, but it seriously lacks for complicated, OOP languages like Java. Codecademy at best teaches syntax, but not programming. Hell, it doesn't even teach how to write a complete class, save how to do the whole offline in an editor outside the browser, and even less how to compile and run Java code.

By mquillian on 12/19/2018

Codecademy is nice to get a taste of programming, but that's it. It's really the most basic level that doesn't include much at all about programming itself. It's little more than syntax.

By delzakiya on 10/7/2014

Codecademy is great for starting out, but note that sometimes their instructions are not done well.

By javascript_dev on 11/16/2019

In my opinion codecademy is the very best resource for the eary part when you still have mixups between function bodies and objects.

By Aaron Mefford on 6/29/2018

Codeacademy is a decent site to get a mild introduction to coding, but the exercises only take you so far. It is more of an appetizer plate than a full meal.