This compact book introduces the concepts of Java Lambdas and parallel Streams in a concise form. It begins by introducing new supporting features such as functional interfaces, default methods and more. After this, the author demonstrates how streams can be parallelized in a very simple way-within certain limits, no knowledge about the thread management is needed. Nevertheless, some basic elements in the context of parallelism need to be considered. Here, the book provides a variety of information and best practices. What you'll learn: What are lambdas and streams and how to use themWhat is the default methodWhat are streams, the stream() functionHow to use Stream and SpliteratorHow to use parallel streamsHow to do collectors and concurrency Who is this book for: This book is for experienced Java programmers and developers.