1. Card class:

public class Card {
    private String suit;
    private String name;
    private int value;
    private boolean hidden;

    public Card(String suit, String name, int value) {
        this.suit = suit;
        this.name = name;
        this.value = value;
        this.hidden = true;
    }

    public int getValue() {
        return value;
    }

    public void reveal() {
        this.hidden = false;
    }

    public boolean isHidden() {
        return hidden;
    }

    @Override
    public String toString() {
        return this.hidden ? “<HIDDEN CARD>” : “<” + this.suit + " " + this.name + “>”;
    }

    public static void main(String[] args) {
        Card card = new Card(“Heart”, “Ace”, 1);
        System.out.println(card);
    }
}


2. User class :

public class User {
    private String loginName;
    private String password;

    public User(String loginName, String password) {
        this.loginName = loginName;
        this.password = password;
    }

    public String getLoginName() {
        return loginName;
    }

    public boolean checkPassword(String password) {
        return this.password.equals(password);
    }
}


3. Player class:

import java.util.ArrayList;

public class Player extends User {
    private int chips;
    protected ArrayList<Card> cardsOnHand;

    public Player(String loginName, String password, int chips) {
        super(loginName, password);
        this.chips = chips;
        this.cardsOnHand = new ArrayList<Card>();
    }

    public void addCard(Card card) {
        this.cardsOnHand.add(card);
    }

    public void showCardsOnHand() {
        System.out.print(getLoginName() + " ");
        int numCards = cardsOnHand.size();
        for (int i = 0; i < numCards; i++) {
            if (i < numCards - 1) {
                System.out.print(cardsOnHand.get(i) + “, “);
            } else {
                System.out.print(cardsOnHand.get(i));
            }
        }
        System.out.println();
    }

    public int getChips() {
        return this.chips;
    }

    public void addChips(int amount) {
        this.chips += amount;
    }

    public void deductChips(int amount) {
        if (amount < chips)
            this.chips -= amount;
    }

    public int getTotalCardsValue() {
        int totalValue = 0;
        for (Card card : cardsOnHand) {
            totalValue += card.getValue();
        }
        return totalValue;
    }

    public int getNumberOfCards() {
        return cardsOnHand.size();
    }

    public void clearCardsOnHand() {
        cardsOnHand.clear();
    }
}


4. Dealer class:

public class Dealer extends Player {
    public Dealer() {
        super(“Dealer”, “”, 0);
    }

    public void revealHiddenCard() {
        if (!cardsOnHand.isEmpty()) {
            cardsOnHand.get(0).reveal();
        }
    }
}


5. Deck class (unchanged):

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

public class Deck {
    private ArrayList<Card> cards;

    public Deck() {
        cards = new ArrayList<Card>();
        String[] suits = {“Heart”, “Diamond”, “Spade”, “Club”};
        for (int i = 0; i < suits.length; i++) {
            String suit = suits[i];
            Card card = new Card(suit, “Ace”, 1);
            cards.add(card);
            for (int n = 2; n <= 10; n++) {
                Card aCard = new Card(suit, n + “”, n);
                cards.add(aCard);
            }
            Card jackCard = new Card(suit, “Jack”, 10);
            cards.add(jackCard);
            Card queenCard = new Card(suit, “Queen”, 10);
            cards.add(queenCard);
            Card kingCard = new Card(suit, “King”, 10);
            cards.add(kingCard);
        }
    }

    public void shuffle() {
        Random random = new Random();
        for (int i = 0; i < 1000; i++) {
            int indexA = random.nextInt(cards.size());
            int indexB = random.nextInt(cards.size());
            Card cardA = cards.get(indexA);
            Card cardB = cards.get(indexB);
            cards.set(indexA, cardB);
            cards.set(indexB, cardA);
        }
    }

    public Card dealCard() {
        return cards.remove(0);
    }
}


6. GameModule class:

public class GameModule {
    private static final int NUM_ROUNDS = 4;

    public static void main(String[] args) {
        Keyboard keyboard = new Keyboard();

        System.out.println(“HighSum GAME”);
        System.out.println(”================================================================================”);

        String playerName = Keyboard.readString("Enter Login name > ");
        String playerPassword = Keyboard.readString(“Enter Password > “);

        Player player = new Player(playerName, playerPassword, 100);
        Dealer dealer = new Dealer();
        Deck deck = new Deck();

        while (true) {
            System.out.println(”================================================================================”);
            System.out.println(playerName + “, You have " + player.getChips() + " chips”);

            deck.shuffle();
            dealer.clearCardsOnHand();
            player.clearCardsOnHand();

            int betOnTable = 0;

            for (int i = 0; i < 2; i++) {
                player.addCard(deck.dealCard());
                dealer.addCard(deck.dealCard());
            }

            boolean gameEnded = false;

            for (int round = 1; round <= NUM_ROUNDS && !gameEnded; round++) {
                Card newCard = deck.dealCard();
                player.addCard(newCard);
                dealer.addCard(newCard);

                player.showCardsOnHand();
                dealer.showCardsOnHand();

                int betAmount = Keyboard.readInt("Enter bet amount: ");
                player.deductChips(betAmount);
                betOnTable += betAmount * 2;

                System.out.println(playerName + “, You are left with " + player.getChips() + " chips”);
                System.out.println(“Bet on table: " + betOnTable);

                if (round == NUM_ROUNDS) {
                    dealer.revealHiddenCard();
                    player.showCardsOnHand();
                    dealer.showCardsOnHand();

                    if (player.getTotalCardsValue() > dealer.getTotalCardsValue()) {
                        player.addChips(betOnTable);
                        System.out.println(playerName + " wins”);
                    } else {
                        System.out.println(“Dealer wins”);
                    }
                }
            }

            boolean nextGame = Keyboard.readBoolean(“Next Game? (Y/N):”);
            if (!nextGame) {
                break;
            }
        }

        System.out.println(“Thanks for playing HighSum card game!”);
    }
}

7.Keyboard class:
public class Keyboard {

	public static String readString(String prompt) {
		System.out.print(prompt);
		return new java.util.Scanner(System.in).nextLine();
	}

	public static int readInt(String prompt) {
		int input = 0;
		boolean valid = false;
		while (!valid) {
			try {
				input = Integer.parseInt(readString(prompt));
				valid = true;
			} catch (NumberFormatException e) {
				System.out.println("*** Please enter an integer ***");
			}
		}
		return input;
	}

	public static double readDouble(String prompt) {
		double input = 0;
		boolean valid = false;
		while (!valid) {
			try {
				input = Double.parseDouble(readString(prompt));
				valid = true;
			} catch (NumberFormatException e) {
				System.out.println("*** Please enter a double ***");
			}
		}
		return input;
	}

	public static float readFloat(String prompt) {
		float input = 0;
		boolean valid = false;
		while (!valid) {
			try {
				input = Float.parseFloat(readString(prompt));
				valid = true;
			} catch (NumberFormatException e) {
				System.out.println("*** Please enter a float ***");
			}
		}
		return input;
	}

	public static long readLong(String prompt) {
		long input = 0;
		boolean valid = false;
		while (!valid) {
			try {
				input = Long.parseLong(readString(prompt));
				valid = true;
			} catch (NumberFormatException e) {
				e.printStackTrace();
				System.out.println("*** Please enter a long ***");
			}
		}
		return input;
	}

	public static char readChar(String prompt) {
		char input = 0;
		boolean valid = false;
		while (!valid) {
			String temp = readString(prompt);
			if (temp.length() != 1) {
				System.out.println("*** Please enter a character ***");
			} else {
				input = temp.charAt(0);
				valid = true;
			}
		}
		return input;
	}

	public static boolean readBoolean(String prompt) {
		boolean valid = false;
		while (!valid) {
			String input = readString(prompt);
			if (input.equalsIgnoreCase("yes") || input.equalsIgnoreCase("y") || input.equalsIgnoreCase("true")
					|| input.equalsIgnoreCase("t")) {
				return true;
			} else if (input.equalsIgnoreCase("no") || input.equalsIgnoreCase("n") || input.equalsIgnoreCase("false")
					|| input.equalsIgnoreCase("f")) {
				return false;
			} else {
				System.out.println("*** Please enter Yes/No or True/False ***");
			}
		}
		return false;
	}

	public static java.util.Date readDate(String prompt) {
		java.util.Date date = null;
		boolean valid = false;
		while (!valid) {
			try {
				String input = readString(prompt).trim();
				if (input.matches("\\d\\d/\\d\\d/\\d\\d\\d\\d")) {
					int day = Integer.parseInt(input.substring(0, 2));
					int month = Integer.parseInt(input.substring(3, 5));
					int year = Integer.parseInt(input.substring(6, 10));
					java.util.Calendar cal = java.util.Calendar.getInstance();
					cal.setLenient(false);
					cal.set(year, month - 1, day, 0, 0, 0);
					date = cal.getTime();
					valid = true;
				} else {
					System.out.println("*** Please enter a date (DD/MM/YYYY) ***");
				}
			} catch (IllegalArgumentException e) {
				System.out.println("*** Please enter a date (DD/MM/YYYY) ***");
			}
		}
		return date;
	}

	private static String quit = "0";

	public static int getUserOption(String title, String[] menu) {
		displayMenu(title, menu);
		int choice = Keyboard.readInt("Enter Choice --> ");
		while (choice > menu.length || choice < 0) {
			choice = Keyboard.readInt("Invalid Choice, Re-enter --> ");
		}
		return choice;
	}

	private static void displayMenu(String title, String[] menu) {
		line(80, "=");
		System.out.println(title.toUpperCase());
		line(80, "-");
		for (int i = 0; i < menu.length; i++) {
			System.out.println("[" + (i + 1) + "] " + menu[i]);
		}
		System.out.println("[" + quit + "] Quit");
		line(80, "-");
	}

	public static void line(int len, String c) {
		System.out.println(String.format("%" + len + "s", " ").replaceAll(" ", c));
	}
}

This program is an ide java code. The game is highsum card game. There is an error where the method dealCard() is undefined for the type Deck. There is also a warning for resource leak: '<unassigned Closeable value>' is never closed but do not change the keyboard code. Work around the code to make sure the rest of the code works and do not edit the keyboard code.