Any method you can conjure up takes an object and returns an object that fulfills the Java Function contract. How to use Java’s Function interface. For this Java Function interface example, we will ...

In this Java tutorial for beginners, ... This states that the method defines a function rather than a property of an object and that it doesn’t return any data.

Java’s main function is void, which means it does not return any value when it completes. main – When the JVM starts a standalone application, the main method is the function that gets invoked. String ...