This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I need a help to create a regular expression to validate telephone field with Struts Validator. The regexp should be very simple: 4 numeric digits, a "-" char, and again more 4 numeric digits. Ex: "3131-3131".