Multi-client TCP chat server utilizing threads and socket channels.
Tick off requirements as you build to track real-time completion.
Follow this chronological guide to build the project from scratch.
Initialize ServerSocket and spin worker threads for clients.
import java.io.*;
import java.net.*;
import java.util.concurrent.*;
public class ChatServer {
private static final int PORT = 8080;
private static CopyOnWriteArrayList<ClientHandler> clients = new CopyOnWriteArrayList<>();
public static void main(String[] args) throws IOException {
ServerSocket serverSocket = new ServerSocket(PORT);
System.out.println("Chat server started on port " + PORT);
while (true) {
Socket clientSocket = serverSocket.accept();
ClientHandler handler = new ClientHandler(clientSocket, clients);
clients.add(handler);
new Thread(handler).start();
}
}
}Real issues students hit during development and how to troubleshoot them fast.
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