import javax.imageio.*;
import java.awt.image.*;
import java.awt.event.*;
import java.awt.*;
import java.security.NoSuchAlgorithmException;
import java.security.MessageDigest;
import java.lang.reflect.*;
import java.net.*;
import java.io.*;
import javax.swing.text.*;
import javax.swing.event.*;
import javax.swing.*;
import java.util.concurrent.atomic.*;
import java.util.concurrent.*;
import java.util.regex.*;
import java.util.List;
import java.util.zip.*;
import java.util.*;


public class main {
  static int score, max = 3;
  static boolean online;
  
  public static void main(String[] args) throws Exception {
    print("Online check!");
    score = 0;
    check("tinybrain.de");
    check("google.com");
    check("bing.com");
    online = score > 0;
    print("Score: " + score + "/3");
  }
  
  static void check(String server) {
    boolean online = checkIfHttpServerIsOnline("tinybrain.de") == null;
    if (online)
      ++score;
    print(server + ": " + (online ? "ONLINE!" : "OFFLINE?"));
  }

  // null = online, Throwable = offline
  public static Throwable checkIfHttpServerIsOnline(String serverName) {
    try {
      String url = serverName.startsWith("http") ? serverName : "http://" + serverName + "/";
      //HttpURLConnection.setFollowRedirects(false);
      // note : you may also need
      //        HttpURLConnection.setInstanceFollowRedirects(false)
      HttpURLConnection con =
         (HttpURLConnection) new URL(url).openConnection();
      con.setRequestMethod("HEAD");
      int responseCode = con.getResponseCode();
      //print("Response code for " + url + ": " + responseCode);
      // If we came this far, assume server is online.
      return null;
      //return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
    }
    catch (Exception e) {
       return e;
    }
  }  

static void print() {
  System.out.println();
}

static void print(Object o) {
  System.out.println(o);
}

static void print(long i) {
  System.out.println(i);
}
}