JAVA Lambda Expressions streams

http://www.oracle.com/webfolder/technetwork/tutorials/obe/java/Lambda-QuickStart/index.html

https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html

http://cr.openjdk.java.net/~briangoetz/lambda/lambda-state-final.html

http://cr.openjdk.java.net/~briangoetz/lambda/lambda-libraries-final.html

https://blog.informatech.cr/2013/03/24/java-streams-preview-vs-net-linq/