Multiplayer 20 Questions

Multiplayer 20 Questions is a Java-based implementation of the classic guessing game “20 Questions,” designed for multiple players over a network. One player hosts the server, and others connect as clients to play together in real time.

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Overview

The game allows several players to join a shared session where one player thinks of a word, and others take turns asking yes/no questions to guess it within 20 questions. It demonstrates fundamental concepts in Java socket programming, client-server communication, and multiplayer game logic.

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How It Works

• mainServer.java — Starts the main server, listens for incoming connections, and manages game sessions.
• newClient.java — Connects a player to the server and provides the interface for asking questions and making guesses.
• gameLogic.java — Contains the core logic that tracks questions, answers, turns, and determines when the game ends.

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Getting Started

Prerequisites

• Java 17 or later
• A terminal or IDE

Compilation

From inside the project folder, compile all Java files:

javac *.java

Running The Server:

java mainServer

Running A Client:

java newClient