Introduction In this section, we talk about the powerful Collector Interface, which allows you to build elements of a stream to a new data structure. First, we shortly cover the interface and then we talk about the basics like List, Set, and Map. Later we will go to more advanced topics like groupingBy. If you […]
Guide to Collectors in Java Streams Read More »
Introduction In this short blog article, I want to show the various sources like collections, arrays, files, and more, from which streams can be created. One of the first steps in using streams is to create a stream source, which is the starting point of the data stream. 1. Collections One of the most used
Java Stream Sources Read More »
Introduction In this chapter, we want to talk more about parallel streams in Java. Java streams can be executed in parallel, which can significantly improve performance. Learning how to use parallel streams effectively is an important topic for Java developers. It is most often used when there are large data sets, which need to be
Java Parallel Streams Read More »
Introduction Here we will explore many java stream operations. Keep in mind that there are many more. In the second part, we will even program a custom implementation of a stream operation. In general, you can distinguish between Intermediate operations, which transform a stream into another stream, and Terminal operations which produce a result or
Java Stream Intermediate Operations with examples – Part 1/2 Read More »
Introduction In the second part, we will look at terminal operations. Terminal operations close the stream and are always at the end of the stream. The most often used is the collect() operation to collect all elements of a collection. 1. Collect Definition: Collects the elements of the stream into a collection or a map.
Java Stream Terminal Operations – Part 2/2 Read More »
Introduction Java streams are a powerful and popular feature in Java 8 and above that provide a functional approach to processing data collections. Streams make it easier to process large data sets by allowing developers to express complex data processing operations with a few lines of code. We will explore the basics of Java streams
Basic of Java Streams – Beginner Tutorial Read More »
Introduction Java Streams are a powerful feature introduced in Java 8 that provides a concise and functional programming style for processing data collections. Streams allow developers to filter, map, reduce, and perform other operations on data in a declarative and efficient manner. Streams can be processed in parallel or in a serial manner, making them
Java Streams and Lambdas API Tutorial – Overview Read More »
