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.

Polymorphism—or an object’s ability to execute specialized actions based on its type—is what makes Java code flexible.Many design patterns created by the Gang Of Four rely on some form of ...

Not only that, Subramaniam explains in his keynote address for Oracle Code Online, but as implemented in Java 8 and beyond, functional-style code is lazy—and that laziness makes for efficient ...