package pack;

import java.util.HashMap;
import java.util.Map;
import java.util.Random;

public class CharacterGenerator {
    private static Random rand = new Random();
    private static final char CHAR_1 = 'a';
    private static final char CHAR_2 = 'b';
    private static final char CHAR_3 = 'c';

    public static void main(String[] args) {
        Map<Character, Integer> map = new HashMap<>();
        for (int i = 0; i < 1_000_000; i++) {
            char distribution = distribution();
            map.putIfAbsent(distribution, 1);
            map.computeIfPresent(distribution, (character, integer) -> ++integer);
        }
        System.out.println(map);
    }

    public static char distribution() {
        while (true) {
            int gen1 = gen();
            int gen2 = gen();
            int gen3 = gen();
            if (gen1 == gen2 && gen2 == gen3) {
                continue;
            }
            if (gen1 == gen2) {
                return CHAR_1;
            } else if (gen2 == gen3) {
                return CHAR_2;
            } else if (gen3 == gen1) {
                return CHAR_3;
            }
        }
    }

    private static int gen() {
        return rand.nextInt(2);
    }
}