// functional/CurriedIntAdd.java // (c)2021 MindView LLC: see Copyright.txt // We make no guarantees that this code is fit for any purpose. // Visit http://OnJava8.com for more book information. import java.util.function.*; public class CurriedIntAdd { public static void main(String[] args) { IntFunction curriedIntAdd = a -> b -> a + b; IntUnaryOperator add4 = curriedIntAdd.apply(4); System.out.println(add4.applyAsInt(5)); } } /* Output: 9 */