The functional Predicate interface gets used extensively by the Java 8 Streams API. Any developer who wants to master functional programming in Java will need to be comfortable with the Predicate ...

Traditional Java 8 Predicate example While the Java 8 Predicate is a functional interface, there's nothing to stop a developer from using it in a traditional manner. Here's a Java Predicate example ...

For example, the standard class library provides a java.lang.Runnable interface with a single abstract void run() method. This functional interface’s declaration appears below: @FunctionalInterface ...

Functional programming example: Collections Perhaps the most prominent example of where functional programming shines is in dealing with collections.