Java: How to test if a String contains a case-insensitive regex pattern
By Alvin Alexander. Last updated: July 8 2016
Java String FAQ: How can I tell if a Java String contains a given regular expression (regex) pattern?
In a Java program, you want to determine whether a String contains a case-insensitive regular expression (regex). You don't want to manipulate the String or extract the match, you just want to determine whether the pattern exists at least one time in the given String.