Another way to use an asynchronous callback function is to use the CompletableFuture API. This powerful API, introduced in Java 8, facilitates executing and combining asynchronous method invocations.

Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories. Topics Spotlight: New Thinking about Cloud Computing ...

Learn how to use a web API from within an Android app using Retrofit. ... See also: How to use classes in Java. To see this in action, we need to find a Web API that we can use readily.

Inside of a main method or any other piece of Java code, the SimpleConsumerExample class can be instatiated according to traditional Java syntax rules: /* Java Consumer example using a class */ ...