Also known as the Java 8 Predicate -- which stems from the JDK version where functional programming was introduced to developers -- this simple interface defines five methods, although only the Java ...

Before Java ... interface method. If a lambda body throws an exception, the functional interface method’s throws clause must declare the same exception type or its supertype. Consider Listing 8.

The implementation of Java 8 Lambda expressions required an introduction to a number of new interfaces with esoteric names that can be somewhat intimidating to developers without any experience in ...