Predicate Functional Interface

Introduction to the Predicate interface

Java 8 provides some in-built functional interfaces in the java.util.function package. These interfaces are required so that, while writing lambda expressions, we don’t need to worry about creating a functional interface.

There are 43 predefined interfaces in Java 8. Remembering all of them is a bit difficult, so we will divide them into categories and look at each category. The first category that we are looking at in this lesson is Predicate.

Below are the interfaces in this category: