CodeGym: learn Java - Learn Java coding

Begin your journey in Java programming directly on your smartphone with the engaging educational game developed by CodeGym's creators. This course features a complete set of 1200 tasks and 600 mini-lectures.

If you aspire to be a programmer but find it challenging to commit to a strict course schedule, this app offers the perfect alternative. You can allocate as much time as you have for your studies and practice at your convenience. Even dedicating just 30 minutes each day can allow you to read some lectures or tackle a few tasks!

The format of our Java programming course is gamified and comprises four distinct quests. Each quest is made up of 10 levels that include both lectures and tasks. Picture yourself playing a game while simultaneously enhancing your coding skills!

Writing numerous lines of code on your smartphone can be quite challenging. To assist with this, we have created an extensive system of auto-expansion and tips designed to expedite your coding process. Once you finish your solution, send it for evaluation and receive immediate feedback.

This course includes a variety of Java programming tasks, such as:

- Developing your own code;

- Debugging existing code;

- Completing standalone mini-projects and games.

If you encounter difficulties while working on any task, don’t hesitate to seek hints in the help section where you can receive guidance from fellow learners or course instructors.

Your progress is tracked, allowing you to resume your studies whenever you wish and continue solving tasks or reading lectures.

Master the fundamentals of Java in the most effective way—through hands-on coding experience!

About CodeGym

What is CodeGym?

CodeGym is an interactive, gamified online Java programming course.

The course consists of four quests (Java Syntax, Core, Multithreading, Collections), each consisting of 10 levels. Each level includes short lectures on Java theory (one lecture per topic) and tasks to consolidate the obtained knowledge. Access to materials opens sequentially, as you progress through the course.

The main features of the course:

Learning in a game format. CodeGym is a futuristic world with its own characters and history. The character you need to “upgrade” is Amigo the robot, who learns programming from scratch. For completing the tasks correctly you get bonuses (“dark matter”), which is then used to open new lectures/levels and move further in the course.

The necessary minimum of theory with lively, interesting examples. The course only includes knowledge that is really necessary for employment.

Learning by practice. 80% of the course is dedicated to practical tasks. Tasks appear from the first lessons, and their complexity gradually grows. You can solve tasks directly on the website, which includes instant verification of your code and recommendations on how to improve it.

Preparation for employment. Starting from the middle of the course, students begin to write mini-projects (for example, an application for a restaurant, a chat bot, games) and receive assignments focused on preparing for interviews.

Help from course developers, students and CodeGym alumni. You can ask the community for help in solving complex tasks, discuss any issues related to training and job search. CodeGym is a global community of programmers.

The goal of the entire course is to get real Java programming skills, so that you can easily work as a programmer.

What will I learn from CodeGym?

First of all, you will learn Java Core. This is the core of the Java language - everything that EVERY potential Junior Java Developer needs to know. And you will study this through practice, having solved more than 1200 tasks. From the second half of the course, you will also encounter such mini-projects as Sokoban, Star Wars games, online chat, ATM emulator, and more.

Additionally, besides Java, some of the lessons are devoted to the interview process and how to write a resume.

Where can I see the curriculum?

Detailed curriculum and a list of studied topics are available in quest maps: Java Syntax, Java Core, Java Multithreading and Java Collections.

Do you issue diplomas/certificates?

Programming is a practical activity. Therefore, no potential employer will believe even the most beautiful piece of paper confirming completion of a course, until they test the real skills. Therefore, we do not issue certificates.

Instead, we teach programming in such a way that a CodeGym graduate can get a job regardless of whether he has a diploma, certificate or other educational trophies.

How will learning on CodeGym benefit me?

Learning on CodeGym will help you gain programming skills in the most efficient way.

It’s impossible to become a programmer just by reading a book or watching a video! To learn how to program you need to...well, program, and form the "correct" programmer thinking.

To help with this, there are more than 1,200 tasks of varying complexity and automatic verification. By solving all of the tasks you get more than 300-500 hours of practical experience. The combination of theory, practice, and - most importantly - review of the code you write - this is what CodeGym provides.

Where can I find reviews about CodeGym?

You can find the Reviews section on our website. Here you can leave your feedback and read the opinions of other users.

You can also search for reviews on the Internet. Type "CodeGym reviews" in Google and you'll get quite a few results. We do not filter out third-party reviews, so you can not only see positive reviews (of which there are many more, which is pleasing), but also constructive and not very constructive criticism.

PS: Reviews are subjective, so you can only form your own opinion once you try something yourself. Try the first level on CodeGym - it's totally free.

About Tasks

What does "epic tasks" mean?

You may have encountered tasks labeled “Epic”. These are so-called “tasks from the future.” They are based on the theory from up to three upcoming levels. This was done intentionally. If you really want to solve the task now, but you do not have enough knowledge, you will need to do your own research. This is a useful skill for any programmer. Otherwise, if you want to proceed through the course, just put the task aside and return to it later, once you acquire the necessary theoretical knowledge.

What is so special about your tasks? Isn't it better to program yourself and not pay for a "collection of tasks"?

Firstly, it is not at all easy to find tasks which will help you develop in the right direction, especially for a novice developer. Secondly, even if the program works correctly and provides an answer, this does not mean that it has been solved correctly.

This is why the automatic verification system plays an important role in our course. Our smart validator will instantly check your task, analyze any errors and send recommendations to eliminate them.

How many and what kind of tasks do you?

There are more than 1200 tasks in four CodeGym quests.

They may differ in content:

Code Entry. This is the simplest type of tasks consisting of mechanical code entry. There are not many of them, but they are also needed at the initial stage of education, so that the student gets used to writing code.

Correcting the completed code to match the conditions of the task.

Writing your own code to solve the task.

They may differ by chronology:

Tasks for the covered material - These tasks usually come straight after lectures. Most often them are simple, although anything can happen 😊.

Tasks "from the future." These are tasks that will have you running a little ahead of the covered lecture material: they will have something that was not yet in the lectures. Hint: Usually the material needed to solve “tasks from the future” is given within the next level.

They may differ by volume:

Simple tasks with one / several conditions.

Mini-projects (available from Level 20), which consist of several sub-tasks. The result of completing such tasks is an interesting and at times useful program, for example, a small game, a URL shortener or an ATM emulator. You will create a mini-project step-by-step (the conditions are divided into 5-20 sub-tasks).

What do the task requirements mean?

In order to understand what needs to be done for completing the tasks successfully, you get a list of requirements for each task.

When you send your solution for verification, a check mark will appear next to each condition that is met. If the condition is not met - a cross will appear. This way it will be clear exactly what conditions need to be worked on, so that the task passes verification.

What are task recommendations?

Imagine your code has an error. For some reason, it does not work correctly. But why? To understand this, you need to review the code recommendations after the task verification. An automatic virtual tutor will comment on your code, point out the error and in 95% of cases will explain the reason for its occurrence.

Teaching methodology

Why you should learn Java

Java is the most future-proof programming language that is constantly evolving and improving. For more than 20 years, the Java market has firmly consolidated its status as a leader, and so far there are no prerequisites for the reduction of its popularity among developers. Despite its age, Java continues to flourish.

5 reasons to start learning Java from a career perspective:

The largest number of programming vacancies is related to Java.

Java developers have the highest salaries in the industry.

Java developers are in demand all over the world, so this is a great opportunity to travel and work anywhere.

You can write in Java for any platforms. Java programming implements the “Write once - run anywhere” principle.

Java has the highest reliability and security compared to other programming languages.

Java has the highest reliability and security compared to other programming languages.

Java can be mastered even if you do not have a mathematical/technical background.

Java is an object-oriented programming language.

Java has a well-designed API.

Java has powerful development tools like IntelliJ IDEA, Eclipse, and Netbeans.

A large collection of open source libraries.

Excellent community support.

Excellent documentation support - Javadocs.

Java is an independent platform.

Java is used everywhere.

In short - start learning. 😊 If you study regularly, you can become a Java developer in 6-12 months and drastically change your life.

Good luck!

How does CodeGym differ from other courses?

A LOT of practice: more than 1200 tasks, which includes mini-projects.

Online course with a comprehensive training program.

You can practice at your own pace at any time.

Instant task verification.

Student code analysis and recommendations.

Student code style recommendations.

Web IDE with syntax highlighting and autocompletion for completing tasks directly on the website.

Plugin for completing tasks through the IDE for professionals - IntelliJ IDEA.

Game format and plot.

Gamification and plot

A huge community where people share experiences and help each other in their studies.

What is the uniqueness of our teaching methodolody?

The uniqueness of our course is in a combination of factors.

Firstly, we focus on programming practice. The course is based on 1200+ tasks of different complexity and format, which help to immediately consolidate the knowledge gained and even run a little ahead, having dealt with some theoretical nuances on your own. To advance in learning, be sure to solve as many tasks as possible. Therefore, by the end of the course, you will have at least 300-500 hours of practical programming experience.

A smart automatic task verification system (virtual tutor) that allows students to:

Instantly send the task for verification and get an answer, whether it is solved correctly or not.

Get task requirements.

Get comments from the virtual tutor, who will tell you what is wrong with the code and how to fix it.

Get code style analysis. Distinct code is very important in teamwork.

Comprehensive preparation for employment.

The ultimate goal of passing the CodeGym course is to get a job as a Java programmer. CodeGym includes a lot to makes this happen:

Java Core Lectures.

Lectures on related technologies (for example, JavaScript).

Tasks with an automatic code review.

Active Help section, where the CodeGym development team and course students will respond.

Mini projects for practice.

Motivational lectures (motivation is VERY important during self-studying!).

Links to additional materials.

Interviews questions and detailed analysis of answers.

Groups section where you will find useful materials to help with your learning.

It is important not to die of boredom when learning, so our lectures are intertwined with an unobtrusive, but interesting plot with thoughtful characters. You are Amigo, a young robot, who is taught to program on the Galaxy Rush spacecraft. In your journey you will be accompanied by very curious personalities :) You will learn the rest from the course.

Why is the lecture text so heavily decorated?

Have you noticed that in good development environments the code is also decorated? This is done to simplify perception. Our lecture texts have the same purpose.

Subscriptions

What subscriptions do you have?

There are 2 types of subscriptions available for registration today - Premium and Premium Pro.

Premium Pro acts as an enhanced version of a Premium subscription. Premium Pro includes all features of a Premium subscription, as well as:

The ability to complete tasks again, while task has status "Completed";

Code style analysis;

A detailed description of each of the features, as well as a table of comparison of subscriptions, is available in the Subscriptions section. Click on the feature in the comparison table to see its detailed description.

Subscription durations and costs

You can subscribe for a period of 1 month or 1 year from the date of payment. Subscription prices are:

Premium — $ 29 / month and $ 99 / year.

Premium Mentor — $ 105 / month and $ 1050 / year.

Premium Mentor Pro — $ 200 / month and $ 1333 / year.

The Subscriptions section only shows costs associated with a monthly subscription type. To subscribe for a year, click the "Buy" button on the subscription card of the required subscription type. Next, when on the payment page, look at Step 1 and change the subscription period from "Month" to "Year" and pay for the subscription using the methods available below.

Is it possible to study without a subscription?

On our Java course, you have the opportunity to complete the first level for free. This will help you understand the features of CodeGym and assess whether our learning format is right for you. Further access will only be possible if you have a subscription.

What are the advantages of having a subscription?

A subscription gives you sequential access to the CodeGym course — from level 0 to level 40. In addition to access to the course, you get a number of features included with a paid subscription - instant task verification, recommendations and detailed information on task verification, bonus tasks, mini-projects and much more.

Monthly subscriptions include auto-renewal. What is it?

Monthly subscriptions include an automatic renewal option. Subscription will be active for 30 days from the date of payment. Automatic renewal (new payment) is initiated 1 day prior to the end of the subscription.

This is very convenient: you do not need to remember when access to the curriculum will be disabled. As a result, you get uninterrupted access to learning on our website.

Subscription auto-renewal is turned on by default when paying Visa and Mastercard cards, which is processed by Stripe on the payment page. In addition, auto-renewal subscriptions can always be disabled in the subscription settings on the site.

Do annual subscriptions include auto-renewal?

No. Automatic renewal option only becomes active for monthly subscriptions when paying by VISA and Mastercard.

Is it possible to get a 3 month subscription, for example?

Yes, you can. To do this, you will need to make three separate payments for each month of the subscription.

You need to follow this process: enter the Subscriptions section, click on the "Buy" button on the subscription card, and then pay it. Do this 3 or more times, depending on the desired duration of the subscription.