The first half of this tutorial introduced you to regular expressions and the Regex API. You learned about the Pattern class, then worked through examples demonstrating regex constructs, from basic ...

String concatenation converting numbers to strings and back the methods indexOf (), lastIndexOf (), substring() and trim () of the String class regular expressions tests.

Java’s character and assorted string classes offer low-level support for pattern matching, but that support typically leads to complex code. For simpler and more efficient coding, Java offers the ...

This is a program that uses regular expression to validate an IP address input by a user. This program is implemented by using the Java String method "matches(String regex)" which returns a boolean ...

Abstract: Regex-dependent string functions are string functions that take regular expressions (regexes) as parameters and are popular means of manipulating strings. They are frequently used for, e.g., ...