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.

As I was thinking about the remaining differences between Java interfaces and abstract classes in a JDK 8 world, I decided to see what the Java Tutorial had to say on this.

Don’t overcomplicate Java’s Function interface. Some people can find the simplicity of the Java Function interface to be a bit confusing. After all, a method that takes something and returns something ...

In Java, an "interface" is an abstract base class that only serves the purpose of a template for other classes. The Comparable interface defines methods that allow objects to be sorted based on ...

1. The Java compiler: javac. The javac utility is the most important command-line interface tool you will find in the JDK's bin directory. This is the Java compiler, and whether you use Maven, Gradle, ...