Dear Junior - Letters to a Junior Programmer

Dear Junior If DDS style use of value objects solves the indata validation problem , and if DDS style indata validation does not solve ...

Dear Junior When we do indata validation through value objects we get an application tier that is water-proof. The model describes exact...

Dear Junior When writing the validation logic for the username public boolean isValid() {   return username.matches("[...

Dear Junior Creating a username class and a validation method has taken us a fair amount towards solving SQL Injection by focusing on...

Dear Junior When accepting data from a user, it can come in variations of forms, and the same data can come in different forms. E g, a phone...