A multiplayer Pong game built in Java with Swing GUI and a MariaDB/MySQL backend for tracking scores and maintaining a leaderboard.

• 🎮 Two-player multiplayer Pong over a TCP socket connection
• 🖥️ Swing GUI for login, waiting room, game, and end screen
• 🏆 Leaderboard stored in a MariaDB database
• 📊 Tracks wins/losses per player
• ⏱️ Real-time paddle & ball synchronization via client-server messaging

JavaPong/
├── JavaProjectClient/src/javaprojectclient
| ├── Ball.java # Ball movement
│ ├── GameGUI.java # Game screen + rendering + client networking
│ ├── JavaProjectClient.java # Client entry point (login + waiting room)
| ├── Paddle.java
| ├── Score.java
├── JavaProjectServer/src/javaprojectserver
│ ├── JavaProjectServer.java # Server (game coordinator + DB integration)
└── README.md # Project documentation

• Java JDK 8+
• MariaDB/MySQL running locally on port 3306
• Database named JPong with a table Leaderboard

CREATE DATABASE JPong;

USE JPong;

CREATE TABLE Leaderboard (
    username VARCHAR(50) PRIMARY KEY,
    numWins INT DEFAULT 0,
    numLoss INT DEFAULT 0
);

The server currently connects to:

private static final String URL = "jdbc:mariadb://localhost:3306/JPong";
private static final String USERNAME = "root";
private static final String PASSWORD = "1234";

👉 Update these in JavaProjectServer.java to match your database credentials.

cd javaprojectserver
javac JavaProjectServer.java
java javaprojectserver.JavaProjectServer

Open two terminals (or machines) and run:

cd javaprojectclient
javac JavaProjectClient.java GameGUI.java
java javaprojectclient.JavaProjectClient

• Enter a username and the server IP (e.g., localhost) in the login screen.
• First player will wait in the Waiting Room until Player 2 joins.
• Once connected, the game starts automatically.

• ⬆️ Arrow Up → Move paddle up
• ⬇️ Arrow Down → Move paddle down

At the end of each game:

• Winner’s win count is incremented.
• Loser’s loss count is incremented.
• The updated leaderboard is displayed in the End Screen.

• Nihal Rahman
• Rakeeb Hossain