import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static void main(String[] args) { Pattern pattern = Pattern.compile("w3schools", Pattern.CASE_INSENSITIVE); Matcher matcher = pattern.matcher("Visit W3Schools!"); boolean matchFound = matcher.find(); if(matchFound) { System.out.println("Match found"); } else { System.out.println("Match not found"); } } }