12. Cards Frequencies

import java.text.DecimalFormat;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Scanner;


public class _12_CardsFrequencies {

    public static void main(String[] args) {
        Locale.setDefault(Locale.ROOT);
        Scanner sc = new Scanner(System.in);
        String[] faces = sc.nextLine().split("[\\W ]+");

        Map<String, Integer> facesFreqencies = new LinkedHashMap<>();


        for (String face : faces) {
            if (facesFreqencies.containsKey(face)) {
                facesFreqencies.put(face, facesFreqencies.get(face) + 1);
            }
            else
                facesFreqencies.put(face, 1);
        }
        DecimalFormat formatter = new DecimalFormat("#0.00");
        for (Map.Entry<String, Integer> face : facesFreqencies.entrySet()) {
            System.out.println(face.getKey() + " -> " + formatter.format((double) face.getValue() / faces.length * 100) + "%");
        }
    }

}