Read and write through socket : Socket Client « Network « Java Tutorial

1. Java Tutorial
2. Network
3. Socket Client

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

public class Main {
  public static void whois(String query, String server) throws IOException {
    Socket sock = new Socket(server, 43);
    int c = 0;
    
    OutputStream os = sock.getOutputStream();
    InputStream is = sock.getInputStream();
    query += "\r\n";
    os.write(query.getBytes("iso8859_1"));

    while (c != -1) {
      c = is.read();
      if (c != -1)
        System.out.println((char) c);
    }
  }

  public static void main(String[] args) throws Exception {
    String hostname = "whois.networksolutions.com";
    whois("query", hostname);
  }
}