I am trying to read the csv file, \"read_ex.csv\", into an array. I have searched endlessly on the web/stackoverflow to find a way to read the file into an array. The best i

I am new to java and wold be open to any method that reads a csv into a file that a beginner could understand.
Here is an existing solution for you from Apache Commons, the Apache Commons CSV project. See the Apache Commons CSV parser guide.
It is very easy to use out of the box.
Here is a basic worfklow:
If you are not familiar with how List and ArrayList works in Java, please refer to pretty much any Java tutorials online including the Oracle Tutorial.
Search Stackoverflow for hundreds of posts about using Commons CSV.