BlackJack

import java.util.ArrayList;
import java.util.Random;
import java.util.Scanner;

public class BlackJack {

    public static String cards(int rowIndex) {

        String[] rows = {"2", "3", "4", "5", "6", "7", "8", "9", "10", "J",
                "Q", "K", "A"};

        String[] suit = {"♣", "♦", "♥", "♠"};

        Random randomS = new Random();
        int suitIndex = randomS.nextInt(4);
        String card = new String(rows[rowIndex] + suit[suitIndex]);

        return card;
    }

    public static int cardValues(int cardIndex) {
        int cardValue;

        switch (cardIndex) {
            case 0:
                cardValue = 2;
                break;
            case 1:
                cardValue = 3;
                break;
            case 2:
                cardValue = 4;
                break;
            case 3:
                cardValue = 5;
                break;
            case 4:
                cardValue = 6;
                break;
            case 5:
                cardValue = 7;
                break;
            case 6:
                cardValue = 8;
                break;
            case 7:
                cardValue = 9;
                break;
            case 8:
            case 9:
            case 10:
            case 11:
                cardValue = 10;
                break;
            default:
                cardValue = 11;
                break;
        }
        return cardValue;
    }

    public static Integer sum(ArrayList<Integer> list) {
        Integer sum = 0;
        for (Integer i : list) {
            sum = sum + i;
        }

        if (sum > 21) {
            for (Integer i : list) {
                if (i == 11) {
                    sum -= 10;
                }
            }
        }
        return sum;
    }

    public static void main(String[] args) {
        System.getProperty("file.encoding","Unicode");

        System.out.println("This is BlackJack card game.");

        Scanner input = new Scanner(System.in);

        boolean noWinner = true;
        boolean playerPass = false;
        boolean surrender = false;

        int cash = 100;
        int bet = 0;
        int wincash = 0;
        char[] str = new char[0];

        while (cash > 0) {
            int hand = 1;
            noWinner = true;
            playerPass = false;
            surrender = false;
            ArrayList<String> dealerHand = new ArrayList<String>();
            ArrayList<Integer> dealerValue = new ArrayList<Integer>();
            ArrayList<String> playerHand = new ArrayList<String>();
            ArrayList<Integer> playerValue = new ArrayList<Integer>();

            for (int i = 0; i < 2; i++) {

                Random randomR = new Random();
                int dealerR = randomR.nextInt(13);
                dealerHand.add(cards(dealerR));
                dealerValue.add(cardValues(dealerR));
            }

            for (int i = 0; i < 2; i++) {

                Random randomR = new Random();
                int playerR = randomR.nextInt(13);
                playerHand.add(cards(playerR));
                playerValue.add(cardValues(playerR));
            }

            //System.out.println("\033[2J");

            System.out.println("Your current cash is: " + cash);
            System.out.printf("\nEnter your bet:");
            bet = Integer.parseInt(input.nextLine());

            while (bet > cash) {
                System.out.println("Your current cash is: " + cash);
                System.out.printf("You do not have enough money to bet %d. Please enter again your bet:", bet);
                bet = Integer.parseInt(input.nextLine());
            }
            cash -= bet;

            while (noWinner) {
                wincash = 0;
                hand++;
                if (surrender == true) {
                    cash += bet / 2;
                    break;
                }
                // Dealer hand
                if (hand > 2) {
                    if (sum(dealerValue) <= 16 && playerPass == true) {

                        System.out.println("\nDealer got a new card.");
                        Random randomR = new Random();
                        int dealerR = randomR.nextInt(13);
                        dealerHand.add(cards(dealerR));
                        dealerValue.add(cardValues(dealerR));

                    } else if (sum(dealerValue) > 21) {
                        wincash = bet * 2;
                        bet = 0;
                        cash += wincash;
                        System.out.println("\nDealer Busted!");
                        System.out.println("You win " + wincash + " cash");
                    }
                }

                if (hand > 2 && playerPass == true) {
                    dealerHandPrint(dealerHand, dealerValue, hand,
                            playerPass);
                    // Print Player Hand
                    //
                    playerHandPrint(playerHand, playerValue, hand);

                    while (sum(dealerValue) <= 16) {
                        hand++;

                        System.out.println("\nDealer got a new card");
                        Random randomR = new Random();
                        int dealerR = randomR.nextInt(13);
                        dealerHand.add(cards(dealerR));
                        dealerValue.add(cardValues(dealerR));

                        // Print Dealer Hand
                        //
                        dealerHandPrint(dealerHand, dealerValue, hand,
                                playerPass);
                        // Print Player Hand
                        //
                        playerHandPrint(playerHand, playerValue, hand);

                    }

                    if (sum(dealerValue) > 21) {
                        System.out.println("\nDealer busted!");
                        wincash = bet * 2;
                        bet = 0;
                        cash += wincash;
                        System.out.println("You win " + wincash + " cash.");

                    } else if (sum(playerValue) > sum(dealerValue)
                            && sum(playerValue) <= 21) {
                        System.out.println();
                        System.out.println("You win!");
                        wincash = bet * 2;
                        bet = 0;
                        cash += wincash;
                        System.out.println("You win " + wincash + " cash!");
                    } else if (sum(playerValue) == sum(dealerValue)) {

                        System.out.println("\nPush"); // The game is a draw
                        // (i.e. No Winner)
                        wincash = bet;
                        bet = 0;
                        cash += wincash;
                        System.out.println("You get " + wincash + " cash back.");

                    } else {
                        System.out.println("\nYou lost!");
                        wincash = -bet;
                        bet = 0;
                        System.out.println("You loose: " + wincash + " cash.");
                    }
                    break;
                }

                dealerHandPrint(dealerHand, dealerValue, hand, playerPass);
                // Print Player Hand
                //
                playerHandPrint(playerHand, playerValue, hand);

                if ((sum(dealerValue) == 21) && (sum(playerValue) == 21) && hand > 2) {
                    ;
                    System.out.println("\nPush"); // The game is a draw (i.e. No
                    // Winner)
                    wincash = bet;
                    bet = 0;
                    cash += wincash;
                    System.out.println("You get " + wincash + " cash back.");
                    break;
                } else if ((sum(dealerValue) == 21) && (hand > 2)) {
                    System.out.println("\nYou lost!"); // CASE 7 -dealer's
                    wincash -= bet;
                    bet = 0;
                    System.out.println("You loose: " + wincash + " cash.");
                    break;
                } else if ((sum(playerValue) == 21) && hand > 2) {
                    System.out.println("\nYou win!");
                    wincash = (bet*2);
                    bet = 0;
                    cash += wincash;
                    System.out.println("You win " + wincash + " cash.");
                    break;
                } else if (sum(playerValue) > 21) {
                    System.out.println("\nBusted!");

                    wincash -= bet;
                    bet = 0;
                    System.out.println("You loose: " + wincash + " cash.");
                    break;
                }

                if ((cash - bet) < 0) {
                    System.out.println("Hit(H) or Stand(S) or Surrender(U)");
                    str = input.nextLine().toLowerCase().toCharArray();
                    while (str[0] != 's' && str[0] != 'h' && str[0] != 'u') {
                        System.out.println("You have entered incorrect input. Please try again:");
                        System.out.println("Hit(H) or Stand(S) or Surrender(U)");
                        str = input.nextLine().toLowerCase().toCharArray();
                    }
                } else {
                    System.out.println("\nHit(H) or Stand(S) or Double(D) or Surrender(U)");
                    str = input.nextLine().toLowerCase().toCharArray();
                    while (str[0] != 's' && str[0] != 'h' && str[0] != 'u' && str[0] != 'd') {
                        System.out.println("You have entered incorrect input. Please try again:");
                        System.out.println("\nHit(H) or Stand(S) or Double(D) or Surrender(U)");
                        str = input.nextLine().toLowerCase().toCharArray();
                    }
                }

                if (str[0] == 'h') {

                    System.out.println("You've got a new card.");
                    Random randomR = new Random();
                    int playerR = randomR.nextInt(13);
                    playerHand.add(cards(playerR));
                    playerValue.add(cardValues(playerR));

                } else if (str[0] == 'u') {

                    System.out.println("You surrender\nYou take back half of your bet.");
                    surrender = true;

                } else if (str[0] == 'd') {
                    System.out.println("You double your bet!");
                    System.out.println("You've got a new card.");
                    Random randomR = new Random();
                    int playerR = randomR.nextInt(13);
                    playerHand.add(cards(playerR));
                    playerValue.add(cardValues(playerR));

                    cash -= bet;
                    bet = bet * 2;
                    playerPass = true;

                } else if (str[0] == 's') {
                    playerPass = true;
                }
            }
        }
        System.out.println("You have " + cash + " cash left.");
        System.out.println("You have lost! :( ");
    }


    private static void playerHandPrint(ArrayList<String> playerHand,
                                        ArrayList<Integer> playerValue, int hand) {
        System.out.print("\nYou have ");
        System.out.println(sum(playerValue) + " points."); // display player
        // points
        for (String item : playerHand) { // Display player cards
            System.out.print(item + "  ");

        }
        System.out.println();
    }

    private static void dealerHandPrint(ArrayList<String> dealerHand,
                                        ArrayList<Integer> dealerValue, int hand, boolean playerPass) {
        if (hand == 2 && playerPass == false) {
            System.out.print("Dealer has ");
            System.out.print("\n" + dealerHand.get(0) + "  ???"); // Display dealer cards with second card hidden

        } else {
            System.out.print("Dealer has ");
            System.out.println(sum(dealerValue) + " points.");// Display dealer cards

            for (String item : dealerHand) {
                System.out.print(item + "  ");
            }
        }
    }

}