In Java 8, Function is a functional interface ; it takes an argument (object of type T) and returns an object (object of type R). The argument and output can be a different type. Function.java. @FunctionalInterface public interface Function<T, R> { R apply(T t); } T – Type of the input to the function.26 Şub 2020
Read moreWhat is function in Java with example?
In Java, all function definitions must be inside classes. We also call functions methods. Let’s look at an example method public class Main { public static void foo() { // Do something here } } foo is a method we defined in class Main.
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