Web ping : HTTP Server « Network « Java Tutorial

1. Java Tutorial
2. Network
3. HTTP Server

import java.net.InetAddress;
import java.net.Socket;

public class Main {
  public static void main(String[] args) throws Exception {
    InetAddress addr;
    Socket sock = new Socket(args[0], 80);
    addr = sock.getInetAddress();
    System.out.println("Connected to " + addr);
    sock.close();
  }
}