Primes demo

The following text was written to the standard output stream when the Primes program was executed from IntelliJ.

  length of primes array = 4
  first prime = 2
  last prime = 7
  last prime = 7
  
  The final array ...
  2
  3
  5
  7
  
  The final array ...
  7
  3
  5
  2