If you’ve read my Java 101 tutorial introducing static classes and inner classes, you should be familiar with the basics of working with nested classes in Java code. In this Java tip, you’ll learn ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes and ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Many developers get intimidated when they look at all the new APIs that accept lambda ...

Obviously that doesn't compile, but I hate to make a file FooType.java with just the 5 lines above in it. Obviously that doesn't compile, but I hate to make a file ...

The Comparable interface is simple because it only has one method; however, implementing the compareTo method can become tedious if you need to sort your object by multiple properties (especially if ...

The Java Platform provides the most commonly used data structures in the form of the Collections Framework, and it provides a rich API to operate on them. In this first article in a two-part series, I ...