CountChars

package SetsAndMapsExercise;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Map;
import java.util.TreeMap;

public class CountSymbols {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String line = reader.readLine();
        Map<Character, Integer> symbols = new TreeMap<>();
        for (int i = 0; i < line.length(); i++) {
            char symbol = line.charAt(i);
            if (!symbols.containsKey(symbol)){
                symbols.put(symbol,1);
            } else {
                symbols.put(symbol, symbols.get(symbol) + 1);
            }
        }
        for (Character character : symbols.keySet()) {
            System.out.printf("%c: %d time/s\n",character,symbols.get(character));
        }
    }
}