Appendix B. Recap of streams in Java 8
This appendix is a refresher on Java 8 streams and the aspects of basic functional programming that are associated with them. If you are not familiar with the basic syntax of Java 8 lambda expressions, or the philosophy that underlies their design, you should read a basic text first to familiarize yourself with those concepts, such as Modern Java in Action: Lambdas, Streams, Functional and Reactive Programming, 2nd ed., by Raoul-Gabriel Urma, Mario Fusco, and Alan Mycroft (Manning, 2018). Java 8 introduced lambda expressions as part of Project Lambda, the overall goals of which can be summarized as follows:
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Allow developers to write cleaner and more concise code.
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Provide a modern upgrade to the Java ...
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