Java tutorial
import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static void main(String args[]) { Pattern p = Pattern.compile("java", Pattern.CASE_INSENSITIVE); String candidateString = "Java. java JAVA jAVA"; Matcher matcher = p.matcher(candidateString); // display the latter match System.out.println(candidateString); matcher.find(11); System.out.println(matcher.group()); // display the earlier match System.out.println(candidateString); matcher.find(0); System.out.println(matcher.group()); } }