The java.util.regex.MatcheResult interface provides methods to retrieve the results of a match.
You can get an object of this interface using the toMatchResult() method of the Matcher class. This method returns a MatchResult object which represents the match state of the current matcher.
The end(int group) method of this interface accepts an integer representing a particular group and returns the offset after the last match occurred in the specified group.
Example
import java.util.Scanner; import java.util.regex.MatchResult; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main( String args[] ) { String regex = "(.*)(\\d+)(.*)"; //Reading input from user Scanner sc = new Scanner(System.in); System.out.println("Enter input text: "); String input = sc.nextLine(); //Instantiating the Pattern class Pattern pattern = Pattern.compile(regex); //Instantiating the Matcher class Matcher matcher = pattern.matcher(input); //verifying whether a match occurred if(matcher.find()) { System.out.println("Match found"); } MatchResult res = matcher.toMatchResult(); int end = res.end(1); System.out.println(end); } }
Output
Enter input text: This is a sample Text, 123 Match found 25