USING THE VALIDATOR FRAMEWORK  
Validator framework requires two XML files, namely, a) validator-rules.xml & b) validation.xml ( we are using struts1.1).

Testing Struts Application  
It will be noticed that there are a lot of 'system.out.println's in the action class code.Intentionally so!.

Developing Struts Application  
If we are asked to give a very brief outline of Struts, we can enumerate the following points..

Struts Validator Framework - lab oriented lesson  
We will now have a brief and practical recapitulation of a typical Struts-based application and then proceed to illustrate the use of Validator framework, with a lab-oriented lesson..

Beginners Stuts tutorial.  
In this tutorial on Struts, the author explains its essential features , with a simple lab-oriented practical example..