What is function with example in Java?

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. Notice a few things about foo .

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.26 Şub 2020

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.26 Şub 2020

Java’s main function

Java’s main function