This repository contains all the source code for the examples and quizzes in the book Java 8 in Action: Lambdas, Streams and functional-style programming.
You can purchase the early access here: http://manning.com/urma/
We are very keen to hear your feedback and improve the book based on your comments!
The source code for all examples can be found in the directory src/main/java/lambdasinaction
- Chapter 1: Introduction
- Chapter 2: Passing Code/Behaviour Parameterisation
- Chapter 3: Lambda expressions
- Chapter 4: Streams
- Chapter 5: Collectors
- Chapter 6: Parallel streams and performance
- Chapter 7: Tools, testing, debugging
- Chapter 8: Default methods
- Chapter 9: Optional: a better alternative to null
- Chapter 10: CompletableFuture: composable asynchronous programming
We will update the repository as we update the book. Stay tuned!
For example:
$ java -version
java version "1.8.0-ea"
Java(TM) SE Runtime Environment (build 1.8.0-ea-lambda-nightly-h109-20130902-b106-b00)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b45, mixed mode)
You can download a preview version here: https://jdk8.java.net/
Using maven:
$ mvn compile
$ cd target/classes
$ java lambdasinaction/chap1/FilteringApples
Alternatively you can compile the files manually inside the directory src/main/java