Main.java

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

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        int balance = 2000;
        int bet;
        int cashout;
        String[] row;

        System.out.println("***************************************");
        System.out.println("Welcome to Java Slot Betting Machine");
        System.out.println("***************************************");
        System.out.println("Symbols: 🔔 🍒 🍉 🍋 ⭐");

        boolean continueGame = true; // Flag to control whether the game continues

        while (balance > 0 && continueGame) {
            System.out.println("Current balance:$ " + balance);
            System.out.println("Enter your betting Amount: ");

            // Handle invalid input for bet amount
            while (true) {
                if (scanner.hasNextInt()) {
                    bet = scanner.nextInt();
                    scanner.nextLine(); // To consume the newline character
                    if (bet <= 0) {
                        System.out.println("Bet must be greater than $0");
                    } else if (bet > balance) {
                        System.out.println("INSUFFICIENT FUNDS! Please deposit or lower bet amount.");
                    } else {
                        balance -= bet;
                        break; // Exit the loop once a valid bet is entered
                    }
                } else {
                    System.out.println("Invalid input! Please enter a valid number for the bet.");
                    scanner.nextLine(); // Consume the invalid input
                }
            }

            System.out.println("Spinning...");
            row = Spin();
            Printrow(row);
            cashout = (int) getcashout(row, 0, bet);

            if (cashout > 0) {
                System.out.println("You won $" + cashout);
                balance += cashout;
            } else {
                System.out.println("Sorry, you lost this round.");
            }

            while (true) {
                // Prompt the user with two options
                System.out.println("Do you want to continue? (yes/no): ");
                String userInput = scanner.nextLine().toLowerCase(); // Convert to lowercase to make it case-insensitive

                // Check if the input is either "yes" or "no"
                if (userInput.equals("yes")) {
                    System.out.println("You chose 'Yes'. Continuing the game...");
                    break;  // Exit the loop and continue with the game
                } else if (userInput.equals("no")) {
                    System.out.println("You chose 'No'. Exiting the game...");
                    continueGame = false; // Set the flag to false to exit the outer loop
                    break;  // Exit the loop
                } else {
                    // Invalid input, prompt the user again
                    System.out.println("Invalid input. Please enter 'yes' or 'no'.");
                }
            }
        }

        System.out.println("Game Over! Your Final Balance is $" + balance);
        scanner.close(); // Close the scanner at the end of the game
    }

    // Java slot machine spinning method
    static String[] Spin() {
        String[] symbol = {"🔔", "🍒", "🍉", "🍋", "⭐"}; // The available array of symbols
        String[] row = new String[3];
        Random random = new Random();

        for (int i = 0; i < 3; i++) {
            row[i] = symbol[random.nextInt(symbol.length)];
        }
        return row;
    }

    // Print the row of symbols
    static void Printrow(String[] row) {
        System.out.println("***************************************");
        System.out.println(" " + String.join(" | ", row)); // Join each element in the row array with " | "
        System.out.println("***************************************");
    }

    // Method to calculate the cashout based on the row
    static double getcashout(String[] row, int cashout, int bet) {
        if (row[0].equals(row[1]) && row[1].equals(row[2])) {
            return switch (row[0]) {
                case "🍒" -> bet * 3;
                case "🍉" -> bet * 4;
                case "🍋" -> bet * 5;
                case "🔔" -> bet * 10;
                case "⭐" -> bet * 20;
                default -> 0;
            };
        } else if (row[0].equals(row[1]) || row[1].equals(row[2]) || row[0].equals(row[2])) {
            return switch (row[0]) {
                case "🍒" -> bet * 2;
                case "🍉" -> bet * 3;
                case "🍋" -> bet * 4;
                case "🔔" -> bet * 5;
                case "⭐" -> bet * 10;
                default -> 0;
            };
        }
        return 0;
    }
}