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Subexpression/Meta character " \ G matches with the point at the end of the last match.
import java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main(String args[]) { String regex = "\\G[0-9]; Scanner sc = new Scanner(System.in); System.out.println("Enter a string:"); String input = sc.nextLine(); Pattern p = Pattern.compile(regex); Matcher m = p.matcher(input); int count = 0; String digits = ""; System.out.println("Number of the previous match:"); while(m.find()) { System.out.print(m.group()); count ++; } System.out.println(); System.out.println("Number of matches:");+count); } }
Output Result
Enter a string: 555 sample text Number of the previous match: 555 Number of matches: 3