slot machine in java

Java is a versatile programming language that can be used to create a wide variety of applications, including games. In this article, we will explore how to create a simple slot machine game using Java. This project will cover basic concepts such as random number generation, loops, and user interaction. Prerequisites Before diving into the code, ensure you have the following: Basic knowledge of Java programming. A Java Development Kit (JDK) installed on your machine. An Integrated Development Environment (IDE) such as Eclipse or IntelliJ IDEA.

  • Cash King Palace
    new
    Royal Wins100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Lucky Ace Palace
    Luck&Luxury100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Starlight Betting Lounge
    Celestial Bet100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Spin Palace Casino
    Win Big Now100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Silver Fox Slots
    Elegance+Fun100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Golden Spin Casino
    Luxury Play100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Royal Fortune Gaming
    Opulence & Thrills100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Lucky Ace Casino
    Luck&Luxury100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Diamond Crown Casino
    Opulence & Fun100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more
  • Victory Slots Resort
    Spin to Win100% / $1500
    Casino popularity:
    Collecting more data...
    Payment methods
    • Mifinity
    • Google Pay
    • PIX
    • EcoPayz
    • Neteller
    • Apple Pay
    • Visa
    • Sofort
    • Interac
    • Wagering: 35 x (b)
    • Withdrawal time: 1 days
    • Minimum deposit to casino: $30
    • Bonus max bet: $5
    • Established: 2024
    • Free Spins: 200
    • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
    • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
    • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
    • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins
    • Leading selection of slots
    • VISA casino site
    • HD streaming casino games
    • Newly unveiled casino
    • Signup offer now available
    • Mr. Gamble special bonuses
    Show more

slot machine in java

Java is a versatile programming language that can be used to create a wide variety of applications, including games. In this article, we will explore how to create a simple slot machine game using Java. This project will cover basic concepts such as random number generation, loops, and user interaction.

Prerequisites

Before diving into the code, ensure you have the following:

  • Basic knowledge of Java programming.
  • A Java Development Kit (JDK) installed on your machine.
  • An Integrated Development Environment (IDE) such as Eclipse or IntelliJ IDEA.

Step 1: Setting Up the Project

  1. Create a New Java Project:

    • Open your IDE and create a new Java project.
    • Name the project SlotMachine.
  2. Create a New Class:

    • Inside the project, create a new Java class named SlotMachine.

Step 2: Defining the Slot Machine Class

The SlotMachine class will contain the main logic for our slot machine game. Here’s a basic structure:

public class SlotMachine {
    // Constants for the slot machine
    private static final int NUM_SLOTS = 3;
    private static final String[] SYMBOLS = {"Cherry", "Lemon", "Orange", "Plum", "Bell", "Bar"};

    // Main method to run the game
    public static void main(String[] args) {
        // Initialize the game
        boolean playAgain = true;
        while (playAgain) {
            // Game logic goes here
            playAgain = play();
        }
    }

    // Method to handle the game logic
    private static boolean play() {
        // Generate random symbols for the slots
        String[] result = new String[NUM_SLOTS];
        for (int i = 0; i < NUM_SLOTS; i++) {
            result[i] = SYMBOLS[(int) (Math.random() * SYMBOLS.length)];
        }

        // Display the result
        System.out.println("Spinning...");
        for (String symbol : result) {
            System.out.print(symbol + " ");
        }
        System.out.println();

        // Check for a win
        if (result[0].equals(result[1]) && result[1].equals(result[2])) {
            System.out.println("Jackpot! You win!");
        } else {
            System.out.println("Sorry, better luck next time.");
        }

        // Ask if the player wants to play again
        return askToPlayAgain();
    }

    // Method to ask if the player wants to play again
    private static boolean askToPlayAgain() {
        System.out.print("Do you want to play again? (yes/no): ");
        Scanner scanner = new Scanner(System.in);
        String response = scanner.nextLine().toLowerCase();
        return response.equals("yes");
    }
}

Step 3: Understanding the Code

  1. Constants:

    • NUM_SLOTS: Defines the number of slots in the machine.
    • SYMBOLS: An array of possible symbols that can appear in the slots.
  2. Main Method:

    • The main method initializes the game and enters a loop that continues as long as the player wants to play again.
  3. Play Method:

    • This method handles the core game logic:
      • Generates random symbols for each slot.
      • Displays the result.
      • Checks if the player has won.
      • Asks if the player wants to play again.
  4. AskToPlayAgain Method:

    • Prompts the player to decide if they want to play again and returns the result.

Step 4: Running the Game

  1. Compile and Run:

    • Compile the SlotMachine class in your IDE.
    • Run the program to start the slot machine game.
  2. Gameplay:

    • The game will display three symbols after each spin.
    • If all three symbols match, the player wins.
    • The player can choose to play again or exit the game.

Creating a slot machine in Java is a fun and educational project that introduces you to basic programming concepts such as loops, arrays, and user input. With this foundation, you can expand the game by adding more features, such as betting mechanics, different win conditions, or even a graphical user interface (GUI). Happy coding!

slot machine 2.0 hackerrank solution java

Introduction

The world of gaming has witnessed a significant transformation in recent years, particularly with the emergence of online slots. These virtual slot machines have captured the imagination of millions worldwide, offering an immersive experience that combines luck and strategy. In this article, we will delve into the concept of Slot Machine 2.0, exploring its mechanics, features, and most importantly, the solution to cracking the code using Hackerrank’s Java platform.

Understanding Slot Machine 2.0

Slot Machine 2.0 is an advanced version of the classic slot machine game, enhanced with modern technology and innovative features. The gameplay involves spinning a set of reels, each displaying various symbols or icons. Players can choose from multiple paylines, betting options, and even bonus rounds, all contributing to a thrilling experience.

Key Features

  • Reel System: Slot Machine 2.0 uses a complex reel system with numerous combinations, ensuring that every spin is unique.
  • Paytable: A comprehensive paytable outlines the winning possibilities based on symbol matches and betting amounts.
  • Bonus Rounds: Triggered by specific combinations or at random intervals, bonus rounds can significantly boost winnings.

Hackerrank Solution Java

To crack the code of Slot Machine 2.0 using Hackerrank’s Java platform, we need to create a program that simulates the game mechanics and accurately predicts winning outcomes. The solution involves:

Step 1: Set Up the Environment

  • Install the necessary development tools, including an Integrated Development Environment (IDE) like Eclipse or IntelliJ IDEA.
  • Download and import the required libraries for Java.

Step 2: Define the Game Mechanics

  • Class Definition: Create a SlotMachine class that encapsulates the game’s logic and functionality.
  • Constructor: Initialize the reel system, paytable, and betting options within the constructor.
  • Spinning Reels: Develop a method to simulate spinning reels, taking into account the probability of each symbol appearing.

Step 3: Implement Paytable Logic

  • Symbol Matching: Create methods to check for winning combinations based on the reel symbols and payline selections.
  • Bet Calculation: Implement the logic to calculate winnings based on betting amounts and winning combinations.

Cracking the code of Slot Machine 2.0 using Hackerrank’s Java platform requires a deep understanding of the game mechanics, programming skills, and attention to detail. By following the steps outlined above, developers can create an accurate simulation of the game, allowing for predictions of winning outcomes. The solution showcases the power of coding in unlocking the secrets of complex systems and providing valuable insights into the world of gaming.


Note: This article provides a comprehensive overview of the topic, including technical details and implementation guidelines. However, please note that the specific code snippets or detailed solutions are not provided here, as they may vary based on individual approaches and requirements.

slot machine game github

In the world of online entertainment, slot machine games have always held a special place. With the rise of digital platforms, developers are increasingly turning to GitHub to share their creations, including slot machine games. This article will guide you through the process of finding, understanding, and utilizing slot machine game projects on GitHub.

Why Use GitHub for Slot Machine Games?

GitHub is a treasure trove for developers, offering a vast array of open-source projects. Here are some reasons why you might want to explore slot machine games on GitHub:

  • Community Support: Access to a community of developers who can provide feedback, bug fixes, and enhancements.
  • Learning Resource: Study and learn from existing codebases to improve your programming skills.
  • Customization: Modify and customize the game to suit your needs or create something entirely new.
  • Collaboration: Collaborate with other developers to build more complex and feature-rich games.

Finding Slot Machine Games on GitHub

To find slot machine games on GitHub, you can use the following methods:

  1. Search Bar: Use the GitHub search bar with keywords like “slot machine game,” “slot machine,” or “casino game.”
  2. Repositories: Browse through repositories that are tagged or described as related to casino games or slot machines.
  3. Forks and Stars: Look for repositories that have a high number of forks and stars, indicating their popularity and reliability.

Here are some popular slot machine game repositories on GitHub that you might find interesting:

  • Slot Machine Game: A simple yet engaging slot machine game built using JavaScript and HTML5.
  • Casino Game Suite: A collection of casino games, including slot machines, built with Python and Pygame.
  • Slot Machine Simulator: A simulation of a slot machine game, perfect for learning and experimenting with game mechanics.

Understanding the Codebase

Once you’ve found a repository, it’s essential to understand the codebase. Here are some steps to help you get started:

  1. Read the README: Start by reading the README file, which usually contains instructions on how to set up and run the game.
  2. Explore the Code: Familiarize yourself with the code structure. Look for key components like game logic, graphics, and user interface.
  3. Run the Game: Follow the setup instructions to run the game on your local machine. This will help you understand how the game works in practice.

Customizing and Contributing

After understanding the codebase, you can start customizing the game or contributing to the project. Here are some ideas:

  • Add New Features: Introduce new features like different slot themes, bonus rounds, or multiplayer modes.
  • Improve Graphics: Enhance the visual appeal by adding new graphics, animations, or sound effects.
  • Fix Bugs: Identify and fix any bugs or issues in the game.
  • Optimize Performance: Improve the game’s performance by optimizing the code and reducing load times.

Exploring slot machine games on GitHub is a fantastic way to dive into the world of game development. Whether you’re looking to learn, customize, or contribute, GitHub offers a wealth of resources and opportunities. Start your journey today and create your own slot machine game or enhance an existing one!

By following this guide, you’ll be well on your way to mastering the art of slot machine game development on GitHub. Happy coding!

javascript slot machine code

Introduction###JavaScript Slot Machine CodeThe JavaScript slot machine code refers to a set of programming instructions written in JavaScript that simulate the functionality of a traditional slot machine. These codes can be used in various applications, including online casinos, mobile games, and desktop software. In this article, we will explore the concept, benefits, and implementation details of JavaScript slot machine code.

Benefits

The main advantages of using JavaScript slot machine code are:

Flexibility: JavaScript allows for dynamic and interactive experiences on both web and mobile platforms. • Customizability: The code can be easily modified to fit specific game requirements, such as graphics, sounds, and rules. • Accessibility: Online casinos and gaming apps can reach a broader audience with user-friendly interfaces. • Cost-Effectiveness: Developing games using JavaScript slot machine code can be more cost-efficient compared to traditional methods.

Implementation Details

To implement JavaScript slot machine code, you’ll need:

  1. Basic understanding of JavaScript: Familiarize yourself with the language, including variables, data types, functions, loops, and conditional statements.
  2. Graphics and animation library: Utilize a library like Pixi.js or Phaser to create visually appealing graphics and animations for your game.
  3. Audio library: Choose an audio library such as Howler.js to add sound effects and music to enhance the gaming experience.
  4. Random Number Generator (RNG): Implement a reliable RNG to ensure fair and unpredictable outcomes for slot machine spins.

Code Structure

A basic structure for JavaScript slot machine code includes:

  • Initialization: Set up game variables, graphics, and audio resources.
  • Game Loop: Manage the main game logic, including user input, calculations, and updates.
  • Slot Machine Logic: Handle spin button clicks, random number generation, and outcome calculation.
  • User Interface (UI): Create a visually appealing UI to display game information, such as balance, bet amount, and winning combinations.

Example Code

Here’s an example of basic JavaScript slot machine code:

// Initialization
let balance = 100;
let betAmount = 1;

// Graphics and animation library (Pixi.js)
let app = new PIXI.Application({
    width: 800,
    height: 600,
});

document.body.appendChild(app.view);

// Audio library (Howler.js)
let soundEffect = new Howl({
    src: ['sound.mp3'],
});

// Random Number Generator (RNG)
function getRandomNumber(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

// Slot Machine Logic
function spinSlotMachine() {
    let outcome = getRandomNumber(0, 10);
    if (outcome > 7) {
        // Winning combination
        balance += betAmount;
        soundEffect.play();
    } else {
        // Losing combination
        balance -= betAmount;
    }
}

// User Interface (UI)
function updateUI() {
    document.getElementById('balance').innerHTML = balance.toFixed(2);
}

This code example provides a basic structure for a JavaScript slot machine game. You can extend and customize it to fit your specific needs.

Conclusion

JavaScript slot machine code offers flexibility, customizability, accessibility, and cost-effectiveness in developing online casinos and gaming apps. By understanding the implementation details, code structure, and example code, you can create engaging and interactive experiences for players.

Source

  1. slot machine game apps win real money
  2. slot machine in java
  3. slot machine game github
  4. slot machine game github
  5. slot machine game github
  6. cash wizard slot machine

Frequently Questions

How to Implement a Slot Machine Algorithm in Java?

To implement a slot machine algorithm in Java, start by defining the symbols and their probabilities. Use a random number generator to select symbols for each reel. Create a method to check if the selected symbols form a winning combination. Implement a loop to simulate spinning the reels and display the results. Ensure to handle betting, credits, and payouts within the algorithm. Use object-oriented principles to structure your code, such as creating classes for the slot machine, reels, and symbols. This approach ensures a clear, modular, and maintainable implementation of a slot machine in Java.

What is the Best Way to Implement a Slot Machine in Java?

Implementing a slot machine in Java involves creating classes for the machine, reels, and symbols. Start by defining a `SlotMachine` class with methods for spinning and checking results. Use a `Reel` class to manage symbols and their positions. Create a `Symbol` class to represent each symbol on the reel. Utilize Java's `Random` class for generating random spins. Ensure each spin method updates the reel positions and checks for winning combinations. Implement a user interface for input and output, possibly using Java Swing for a graphical interface. This structured approach ensures a clear, maintainable, and functional slot machine game in Java.

 

What is the Java Solution for the Slot Machine 2.0 Challenge on HackerRank?

The Java solution for the Slot Machine 2.0 Challenge on HackerRank involves simulating a slot machine game. The program reads input values representing the slot machine's reels and their symbols. It then calculates the total score based on the symbols aligned in each spin. The solution typically uses nested loops to iterate through the reels and determine the score by comparing adjacent symbols. Efficient handling of input and output is crucial for performance. The final output is the total score after all spins, formatted according to the challenge's requirements.

How can I create an Android slot machine game that works without internet?

Creating an Android slot machine game that works offline involves several steps. First, design the game's UI using Android Studio's layout editor, ensuring all assets are included in the app package. Implement the game logic in Java or Kotlin, handling spin mechanics, win conditions, and scoring. Use local storage to save game progress and settings. Ensure the app's manifest includes the 'android:usesCleartextTraffic="false"' attribute to prevent internet access. Test thoroughly on various devices to confirm offline functionality. By following these steps, you can develop a fully functional, offline Android slot machine game.

How to Create a Slot Machine Game in Java?

Creating a slot machine game in Java involves several steps. First, set up a Java project and define the game's structure, including the reels and symbols. Use arrays or lists to represent the reels and random number generators to simulate spins. Implement a method to check for winning combinations based on predefined rules. Display the results using Java's graphical libraries like Swing or JavaFX. Manage the player's balance and betting system to ensure a functional game loop. Finally, test thoroughly to ensure all features work correctly. This approach provides a solid foundation for building an engaging and interactive slot machine game in Java.