1. Overview map() and flatMap() APIs stem from functional languages. In Java 8, we can find them in Optional, Stream and in CompletableFuture (although under a slightly different name). Streams represent a sequence of […]
1. Introduction There are several options to iterate over a collection in Java. In this short tutorial, we’ll look at two similar looking approaches — Collection.stream().forEach() and Collection.forEach(). In […]
1. Overview In this short article, we’ll have a look at the standard sleep() and wait() methods in core Java, and understand the differences and similarities between them. 2. […]
1. Overview In this quick tutorial, we’ll learn about the performance difference between save() and saveAll() methods in Spring Data. 2. Application In order to test the performance, we’ll […]
