Other commons modules

Commons Lang, IO, and Collections are a few commons libraries out of many. There are other commons modules that are useful for data science:

• Commons compress is used for reading compressed files such as, bzip2 (for reading Wikipedia dumps), gzip, 7z, and others
• Commons CSV is used for reading and writing CSV files (we will use it later)
• Commons math is used for statistical calculation and linear algebra (we will also use it later)

You can refer to https://commons.apache.org/ for the whole list.