InfoWorld

When to use abstract classes vs. interfaces in Java

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 ...
InfoWorld

Abstract class versus interface in the JDK 8 era

In The new Java 8 Date and Time API: An interview with Stephen Colebourne, Stephen Colebourne tells Hartmut Schlosser, “I think the most important language change isn’t lambdas, but static and default ...
Ars Technica

interfaces and abstract classes, what am i doing wrong?

I'm trying to model some data in code and i'm a bit confused on what should be an abstract class vs an interface, and why i can't override an abstract property with a property of an inherited type. is ...
ZDNet

Creating data structures with the Java Collections Framework

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 ...