Predicates can be passed as method parameters. In the example, we pass a predicate function as the second parameter to the eval method. In this tutorial, we have worked with Java Predicates.

What is predicate method?

The predicate is a predefined functional interface in Java defined in the java. util. Function package. It helps with manageability of code, aids in unit-testing, and provides various handy functions.

What is predicate method in Java?

The Functional Interface PREDICATE is defined in the java. util. Function package. It improves manageability of code, helps in unit-testing them separately, and contain some methods like: ... isEqual(Object targetRef) : Returns a predicate that tests if two arguments are equal according to Objects.