Blog Archives

8 Regular Expressions (aka Regex) by examples for Java developers

Q1 How will you go about implementing the following validation rules for a user name? — user name must be between 2 and 17 characters long. — valid characters are A to Z, a to z, 0 to 9, . (full-stop), _ (underscore) and – … Read more ›...



Regular Expressions interview Q&As for Java developers

Q1 What’s the difference between a wildcard and a regular expression?
A1 A wildcard is a generic term referring to something that can be substituted for all possibilities. In computer terms, usually a simple “wildcard” is just a * that can match one or more characters,

Read more ›



Java Interview FAQs

800+ Java Interview Q&As

Top