Recommender Demo, "lenskit-hello" via Intellij Idea, Step by Step

For advanced programmer, it's easy. But a beginner might get a headache ;) 
Here is step by step: 

Prerequisites: Gradle, Intellij Idea. (and JDK for sure).

Demo of Recommender System with LensKit and Intellij Idea

Requirements: 

• Maven
• Intellij IDEA (JetBrains)
• LensKit
• JDK (for sure =P...) Set JAVA_HOME.

If they're not installed yet, then install Maven and LensKit inside a directory. 
Set environment variable M2_HOME, point it to the Maven directory. E.g. "C:\java\apache-maven-3.3.3" in Windows.
Add path of the LensKit's and Maven's binary directories, 
C:\java\lenskit-2.2\bin;%M2_HOME%\bin;%JAVA_HOME%\bin

Google Plus API Java Starter for NetBeans IDE

 This is my personal notes on porting following described package into NetBeans IDE. CMIIW is one of my gods. This is written in 2011, hence it might or might not work with latest update (if any). 

Google Plus Java Starter is a very basic example starter package to learn Google Plus API client for Java. Unfortunately it does not include package for NetBeans IDE (it prefers Eclipse as I guess it due to Oracle factor). 

Here is explanation on how to port starter code into NetBeans IDE 6.9 (Microsoft Windows OS environment).

Credits to google-plus-java-starter project people:

willnorris.goog chrscha...@gmail.com  chirags@google.com mimm...@google.com wo...@google.com  ai...@google.com yan...@google.com

They are team member creating original starter package.

Google App Engine Java SDK