More java... and form validation

http://www.courses.coreservlets.com/Course-Materials/pdf/struts/09-Struts-Automatic-Validation.pdf

http://www.journaldev.com/1997/servlet-example-in-java-with-database-connection-and-log4j-integration


http://www.javatpoint.com/servlet-tutorial


http://www.coderanch.com/t/347738/Servlets/java/good-practice-FORM-VALIDATION