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("t(est)"); String candidateString = "This is a test. This is another test"; Matcher matcher = p.matcher(candidateString); matcher.find(); int startIndex = matcher.start(0); System.out.println(candidateString); System.out.println(startIndex); } }