Module java.base

Interface Function<T,R>

Type Parameters:
T - the type of the input to the function
R - the type of the result of the function
All Known Subinterfaces:
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface public interface Function<T,R>
Represents a function that accepts one argument and produces a result.

This is a functional interface whose functional method is apply(Object).