zliczanie wystąpień matcher.group()

import java.util.Scanner;
import java.util.regex.*;
import java.util.*;

public class ZliczanieMatcherGroup 
{

	
	public static void main(String[] args) 
	{
		
		Scanner input = new Scanner (System.in);
		System.out.println("Dawaj Stringa");
		String napis = input.nextLine();
		
		System.out.println("Jaki podstring chcesz liczyć w podanym String-u?");
		String s3 = input.nextLine();
		
			String regex = s3;
			Pattern pattern = Pattern.compile(regex);
			Matcher matcher = pattern.matcher(napis);
			
			while (matcher.find()) 
			{
				 
				 System.out.println("MatcherGroup wywala:" + matcher.group());
			}
	}

}

int i =0;
while (matcher.find()) 
{
  i++;
}
System.out.println(i);