A free app for Android, by Build Project.

Java is a programming language that is used for back-end development projects. So, if you are interested in learning this specific programming language, you are on the right track.

Hello Java is an app that will teach you the basics of this specific programming. It is constructed for beginners to pick up Java lessons.

If you can’t follow the lessons closely, this tool has a step-by-step example to help you cope better.

Some of the topics include identifiers, data types, variables, classes and objects, operators, loop controls, and many more.

This app is free and is available on Google Play Store.