What is Pattern.CASE_INSENSITIVE in Java?
Overview
The CASE_INSENSITIVE field of the Pattern class is used for pattern matching without case considerations. Characters from the US-ASCII charset are matched by default.
For unicode case-insensitive matching, combine the
UNICODE_CASEflag withCASE_INSENSITIVEflag
Syntax
Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);
The Pattern.compile method takes the Pattern.COMMENTS flag as the match flag.
Code
import java.util.regex.Matcher;import java.util.regex.Pattern;public class Main {public static void main(String[] args) {String string = "Hello eduCATive,how aRe yOU? With educative you learn things easily";Pattern pattern = Pattern.compile("educative", Pattern.CASE_INSENSITIVE);Matcher match = pattern.matcher(string);System.out.println("Matched characters:");while (match.find()) {System.out.println(match.group());}}}
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