Hello Server : ServerSocket « Network « Java Tutorial

1. Java Tutorial
2. Network
3. ServerSocket

import java.io.IOException;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class MainClass {

  public static void main(String[] args) throws IOException {

    int port = 2345;
    ServerSocket ss = new ServerSocket(port);
    while (true) {
      try {
        Socket s = ss.accept();

        String response = "Hello " + s.getInetAddress() + " on port " + s.getPort() + "\r\n";
        response += "This is " + s.getLocalAddress() + " on port " + s.getLocalPort() + "\r\n";
        OutputStream out = s.getOutputStream();
        out.write(response.getBytes("US-ASCII"));
        out.flush();
        s.close();
      } catch (IOException ex) {
      }
    }
  }
}