Emoji Detector

package New;

import org.w3c.dom.ls.LSOutput;

import java.math.BigDecimal;
import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Test {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String string = scan.nextLine();

        Pattern pattern = Pattern.compile("([:*]{2})(?<emojy>[A-Z][a-z]{2,})(\\1)");
        Pattern numbers =Pattern.compile("[0-9]");
        Matcher patternMatcher = pattern.matcher(string);
        Matcher numbersMatcher = numbers.matcher(string);
        BigDecimal coolT = new BigDecimal(1);
        ArrayList<String> coolEm = new ArrayList<>();

        while (numbersMatcher.find()){
            int num = Integer.parseInt(numbersMatcher.group(0));
            coolT = coolT.multiply(BigDecimal.valueOf(num));
        }

        int emCounter = 0;
        while (patternMatcher.find()){
            String emojy = patternMatcher.group("emojy");
            BigDecimal coolness = new BigDecimal(0);

            Pattern letters = Pattern.compile("[A-Za-z]");
            Matcher letterMatcher = letters.matcher(emojy);

            while (letterMatcher.find()) {
                char value = letterMatcher.group(0).charAt(0);
                coolness = coolness.add(BigDecimal.valueOf(value));
            }
            if (coolness.compareTo(coolT)==0 || coolness.compareTo(coolT)==1){

                coolEm.add(patternMatcher.group(1) + patternMatcher.group("emojy") + patternMatcher.group(3));
            }
            emCounter++;
        }
        System.out.println("Cool threshold: " + coolT);
        System.out.println( emCounter + " emojis found in the text. The cool ones are:");
        for (String s : coolEm) {
            System.out.println(s );
        }
    }
}