The Function Interface

I worked with using lambdas for Comparator interface in my first post on Lambdas. We saw how a Function interface could be used to convert an object of one type into an object of another.

Predicates to determine the truth !

We have seen some of the functional interfaces like Consumer and Supplier in the earlier posts. The next one I wanted to explore is the Predicate interface. This one is used for testing certain conditions on a passed instance and returns a boolean value.