A regular expression describes a pattern in text. A pattern could be looking for a specific word, a grouping of words, punctuation, and white space. In a general sense, we can look for certain formats ...

The Java Tutorials ‘s lesson on regular expressions introduces Java’s support for regular expressions via the java.util.regex package and highlights the two classes Pattern and Matcher.

The topic of regular expressions is rich and complex, and Java's implementation of it is comprehensive. A thorough study of the package would be a significant undertaking, and we have only presented ...

If you’ve struggled with regular expressions that took hours to match when you needed them to complete in seconds, this article is for you. Java developer Cristian Mocanu explains where and why ...

Once you have a better understanding of what these different parts of a regular expression do, you’ll need to explain what they do for a specific regex. You can choose one of the following regular ...