Data can come from many different places: web sites, news feeds, databases, etc. To start, we'll demonstrate how to
work with the simplest means of data retrieval data: reading from a text file.Text files can be used as a very simple
database (we could store settings for a program, a list of high scores, numbers for a graph, etc.) or to simulate a more
complex data source.
In order to create a text file, you can use any simple text editor. Windows Notepad or Mac OSX TextEdit will do, just
make sure you format the file as "plain text." It is also advisable to name the text files with the ".txt" extension, just to
avoid any confusion. And just as with image files, these text files should be placed in the sketch's "data" directory in
order for them to be recognized by the Processing sketch.

Once the text file is in place, Processing's loadStrings() function is used to read the content of the file into an String
array. The individual lines of text in the file each become an individual element in the array.