In Java, polymorphism results in code that is more concise and easier to maintain. This tutorial provides an overview of the four types of Java polymorphism, but our focus is subtype polymorphism.

Get started with polymorphism in Java and how to do method invocation in polymorphic method calls.

For more on that, check out our guide to Android development for beginners. For the purposes of this Java tutorial, it may be easier to write your code directly into a Java compiler app.

Learn about serialization in Java with our comprehensive tutorial. We provide examples to help you understand how serialization works.