The idea of constrained properties in Java is not new. Since JDK 1.1, a legion of JavaBeans developers has used a powerful framework found in the java.beans package to enforce data-validation ...

Read the whole “Validation with Java and XML Schema” series: Part 1. Learn the value of data validation and why pure Java isn’t the complete solution for handling it; Part 2.

So I'm just starting to learn Java, I'm fumbling my way through my first program that isn't some version of Hello World. The program is actually working, there are a few other sections, but in ...