anchor.diff:  == Motivation
   
   Since I wasn't familiar with python and I usually work on the JVM
  -with Java 7/8 and http://www.groovy-lang.org/index.html[Groovy],
  +with Java 7 or 8 and http://www.groovy-lang.org/index.html[Groovy],
   I thought it would be nice to have the code in a for me more familiar language.
   Also by porting it, I became more familiar with the examples and to a deeper understanding of the topic.
  +
   The additional written unit-tests might help you to, to better understand the "things".
   
   I also thought it would be nice to be able to change the code
  
positive.code: 
  == Requirements
  
  Java 8
  
  == Support
  
  
negative.code: 
  == Introduction
  
  This github project contains *a port* of the examples from the
  book http://shop.oreilly.com/product/0636920028970.do[*Feeback Control for computer Systems*] from Philipp K. Janert
  *to the Java language*.
  
  In the book the https://github.com/oreillymedia/feedback_control_for_computer_systems[examples] are in https://www.python.org[Python],
  here they are in *Java 8*.
  
  image::book.gif[]
  
  You will not find much explanation here about the examples, I assume you read the book yourself and
  want to try the examples yourself on the JVM. The book is written well and compact, so it's worth reading it anyway.
  
  Personally, I think that the *feedback control* topic is very promising for a lot of problems
  in computer systems today and I assume, most of the software engineers don't know about it,
  