As you can see I decided to get away of the 2-language-concept and chose to focus on Java which is a bit more comfortable for me because I only know a few basics in python(I didn't got any further than writing a small game out of boredom about 1+½ years ago.).

In my next post I will write a few things about the java-syntax which I hope will allow you to better understand the java-examples I show.
In the end there is no big difference between algorithms of any language. Only the Objects of the (standard) libraries are different between them.

I will keep the style of clarifying my explanations using explanatory-purpose variable-names. Although I will be using only java from now on I hope you will keep reading. I will explain other useful concepts and algorithms and I will keep trying to explain things(like lists) that most programmers normally take for granted, but that are useful/interesting to know and not too hard to understand.
Some of these will be other concepts of lists and 3d-graphics(the latter is really easier than it may seem at first).