This example will show you four different ways to implement this functional interface in your code — starting with how to use an actual class, and how to create very concise code with a lambda ...

Also known as the Java 8 Predicate -- which stems from the JDK version where functional programming was introduced to developers -- this simple ... verbosity of Java code, especially for those ...

This not only serves as an interface for your Java (or Kotlin) code, but also acts ... One more easy concept we can introduce in this Java tutorial is how to use methods. This will give you ...

Learn how to use Java annotations to associate ... immediately followed by the interface reserved word and an identifier. For example, Listing 1 declares a simple annotation type that you might ...