We're moving to our new free All-in-One app. Get it here: play.google.com/store/apps/details?id=com.sololearn Learn Java in a greatly improved learning environment with more lessons, real practice opportunity, and community support. SoloLearn's Learn Java is a comprehensive guide to one of the most popular programming languages in the world. And here's a bonus: Learn Java is free. The lessons in Learn Java lessons are fast, easy, and effective; the app is set up to be completed in less than three hours. No prior programming experience is needed. With Learn Java, you'll learn object-oriented Java programming and have the ability to write clear and valid code in almost no time at all. So don't hesitate. Begin our step-by-step tutorial today, and learn a new skill. The app's 64 lessons cover the following topics: Java Basics: Variables, Operators, etc.Conditional Statements and Loops. Arrays. Classes and Objects. Encapsulation, Polymorphism, and Inheritance. Abstract Classes and Interfaces. Anonymous and Inner Classes. Exception Handling. Lists. HashMaps. Sets. Threads. Working with Files. And Much More. Become a Java developer - start SoloLearn's free tutorial today. Unlock levels, collect points, and compete with your peers around the world. Learn and have fun with SoloLearn.