Solving problems can be fun sometimes. I know that feeling of getting answers to challenges and questions. However, I must say that getting your codes to run will make you happier.

It is however necesaary you know that these sites also provide challenges for other programming languages.

So here is a list of the best websites to learn Java programming:
Coderbyte is a platform that helps you practice your Java programming skills and prepare for Java coding bootcamps.

3. Coderbyte
Coderbyte provides 200+ Java programming challenges you can solve directly on an online editor. Coderbyte also provides a collection of algorithm tutorials and introductory videos.
In Coderbyte, you are able to view the solutions others provide for any challenge aside from the official solutions posted by Coderbyte.

2. Codewars
While going through the ‘community love section’ of Codewars, a user said “I swear, @codewars is better than college”.

This may seem true, because codewars is not just a platform but an educational community for computer programming. Codewars provides a large collection of Java challenges directly in the online IDE provided. You can view a discussion for each Java challenges as well as user solutions.

1. Codingame
While using Codingame, you are practically having fun. Codingame is a bit different from the other websites because instead of simply solving Java coding challenges in an editor, you actually take part in writing the code of a game that you play directly online.

It is a great place to learn Java programming without feeling the stress typically associated with it. Guiding you along the Java challenges, the games come with a problem description and test cases.

It’s a new style of learning that’s definitely worth checking out.
Source: https://wongacity.com/java-challenges/

Lol thanks. Hanimal, Oga Wonga City.