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…

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Arulkumaran Kumaraswamipillai

In 1999, I pivoted from mechanical engineering to become a self-taught Java expert. Over the past 19+ years, I have built a high-demand contracting career, delivering mission-critical solutions for 13+ top-tier organisations. With a proven track record that has generated over 130+ job offers, I help enterprises solve complex data challenges at scale.

Author of the book "Java/J2EE job interview companion", which sold 35,000+ copies on amazon.com & superseded by this site with 2000+ registered users.

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