Jokers

import java.util.HashSet;
import java.util.Set;


public class _03FullHouse {

    public static void main(String[] args) {

        char[] suits = {'\u2660','\u2665','\u2666','\u2663'};
        char[] cards = {'2','3','4','5','6','7','8','9','T','J','Q','K','A',};
        String[] allCards= new String[52];

        //add all cards in array
        int indexCounter = 0;
        for (int i = 0; i < cards.length; i++) {
            for (int j = 0; j < suits.length; j++) {
                allCards[indexCounter] = Character.toString(cards[i]) + Character.toString(suits[j]);
                indexCounter++;
            }
        }

        int fullHouseCounter = 0;
        for (int i1 = 0; i1 < 48; i1++)
            for (int i2 = i1 + 1; i2 < 49; i2++)
                for (int i3 = i2 + 1; i3 < 50; i3++)
                    for (int i4 = i3 + 1; i4 < 51; i4++)
                        for (int i5 = i4 + 1; i5 < 52; i5++) {
                            char[] handsCardsArr = {
                                    allCards[i1].charAt(0),
                                    allCards[i2].charAt(0),
                                    allCards[i3].charAt(0),
                                    allCards[i4].charAt(0),
                                    allCards[i5].charAt(0)
                            };

                            //  the HashSet counts distinct values
                            //  the logic is that all full houses have only 2 different card values
                            Set<Character> fullHouseSet  = new HashSet<>();
                            for (char c : handsCardsArr) {
                                fullHouseSet.add(c);
                            }

                            if (fullHouseSet.size() == 2) {

                                // four of a kind hands have 2 distinct cards as well so
                                // we check if the hand is four of a kind
                                char firstChar = handsCardsArr[0];
                                char lastChar = handsCardsArr[4];
                                int diffCounter1 = 0;
                                int diffCounter2 = 0;

                                for (int i = 0; i < handsCardsArr.length; i++) {
                                     if(handsCardsArr[i] == firstChar) {
                                         diffCounter1++;
                                     }
                                     else if (handsCardsArr[i] == lastChar) {
                                         diffCounter2++;
                                     }
                                }
                                boolean notFourOfAkind = diffCounter1 != 4 && diffCounter2 !=4;

                                if (notFourOfAkind) {
                                    System.out.println(allCards[i1] + allCards[i2] +
                                            allCards[i3] + allCards[i4] + allCards[i5]);
                                    fullHouseCounter++;
                                }

                            }
                        }
        System.out.println(fullHouseCounter);
    }

}