user8420: In this Question how does the code Processing work?
Which programming language is it written in? How to run it?

user42: "Processing" is a simplified programming language/environment based on Java. It's designed to be very easy for non-programmers to use, and is quite a popular choice for using alongside Arduino projects.
You can download it for free (and get lots of tutorials/documentation) from here:

https://processing.org

As a side note, the Arduino IDE was based on Processing, so it will probably look familiar!

8420: <p>In this <a href="https://arduino.stackexchange.com/questions/4436/send-processing-color-data-into-arduino">Question</a> how does the code <code>Processing</code> work?
Which programming language is it written in? How to run it?</p>
 42: <p>"Processing" is a simplified programming language/environment based on Java. It's designed to be very easy for non-programmers to use, and is quite a popular choice for using alongside Arduino projects.</p>

<p>You can download it for free (and get lots of tutorials/documentation) from here:</p>

<ul>
<li><a href="https://processing.org" rel="nofollow">https://processing.org</a></li>
</ul>

<p>As a side note, the Arduino IDE was based on Processing, so it will probably look familiar!</p>
