![]() In second-line strList.stream() returns a Stream, and then we use the filter() method, which accepts a Predicate. This is an excellent example to demonstrate how you can filter specific objects from Collection and create a subset of elements that satisfy the given criterion. You can also check out a comprehensive online course like The Java MasterClass to learn them in depth along with other Java 8 changes. This is by no means a complete set of examples you need to master Java 8 Stream API, but it will introduce key functions and encourage you to explore by yourself by reading Java documentation and trying them. ![]() Some of the most common things we do with Streams are filtering a collection, applying map and reduce function on all elements of the collection, and taking advantage of lazy evaluation, built-in parallelism via parallelStream(). Streams are one of the most important additions on JDK, it allows you to leverage other changes like lambda expression, method reference, functional interface, and internal iteration introduced via the forEach() method. In this Java 8 tutorial, I have shared some simple examples of package, which you can use in your day-to-day Java programming tasks. I learned that way, and that's what prompts me to write this article. In my opinion, the best way to learn any new feature or functionality is by writing short examples and understanding them in depth. Since then, a lot of Java developers are trying their hands to learn those significant changes like lambda expression, method reference, new Date and Time classes, and, more importantly, Stream API for bulk data operations. The most significant change it brings in the mindset of Java developers was to think functional and supported that by providing critical features like lambda expression and Stream API, which takes advantage of parallel processing and functional operations like filter, map, flatMap, etc. It not only provided some useful methods but totally changed the way you write programs in Java. The Java 8 release of Java Programming language was a game-changer version.
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