Java has long had a built-in Arrays.sort method ... incredibly useful way to work with Java’s collections. Functional programming is in general a great addition to the overall range of tools ...

Improved modularity could reduce app size and improve startup performance. New value types will make it easier to program arrays. The principal feature of Java 9 is the introduction of a module system ...

Take your first step towards a career in software development with this introduction to Java—one of the most in-demand programming languages and the foundation of the Android operating system.