Comments by bigscout79 (Top 1 by date)

Reason for my vote of 3
If you'd do some actual work in PrintCustomersBelowAge25() people might understand your point a little better. I typically just use System.out but this reminds me I'd be better off using debug and then I can leave the code in. Thanks.

This example as is would have you calling and iterating over customerList regardless of debug or not - which kind of defeats your point.